many ways to success: 2014

Sunday, December 7, 2014

Openstack or Open stack Installation and Configuration + Red Hat Linux

Friends,

Thanks to Red Hat for providing free download and installation option for Open Stack Implementation and giving learning opportunity. Sharing the same with all so that we can all learn this not very new but a best technology which can offer many option to reduce cost on Infrastructure and reducing the resource requirement.

What I learn about new technology and movement towards cloud, etc. is cost cutting. which is the major cause and keeping in mind to shift the work load to the User/Client. Giving potential and idea directly to the user. "Demanded By the User, Provided To the User, Work For the User". These all comes from User's power to Pay for resource, as he understands his work better than anyone under less cost. There will be lot to say and also there will be lot to discuss from User end to IT and then again IT to User.

Below are the steps which we would require to take to implement Open stack on your Work station/ V Centers / Oracle VMs, or even on Redhat Virt-managers. I have installed it with the help available from Red Hat and the best friend of everyone's life Mr. Google. Red Hat Provides this free evaluation version for 60 days.

1. You need to have VMware Workstation or any Desktop level Workstation on your Laptop/desktops/HP/DELL or any machine.

2. Install Red Hat 7 (which i have used) on your workstation with minimum 2 GB of RAM and minimum 2 cores of CPU, Disk Space 30 GB is fine (Which i have kept). Depends upon your requirement you can vary all the resources,

3. Red Hat provides Red Hat 7 ISO image, we can download the same and also we need to register for Openstack subscription and its installation.

"Registration to Redhat site is mandatory as the Credentials will be used to install the Openstack packages and update the machine. It is like subscription for RHN satellite".

4. As you completes your download and Subscription part, we are ready with the installation of Red Hat 7 and Openstack.
before you proceed, If you are not aware of "How to create and Install a Virtual Machine" then please click below link. else you can proceed further with the installation.

5. While completing all the basic needs of Installation of RED HAT 7, we have to keep in mind the file system structure of CENT OS 7/ Red Hat 7. i.e. Default file system which these choose is XFS file system, if you are ok with this then keep choosing the default layout of File system else you can alter the file system and choose LVM type i.e. EXT4 or EXT 3.

6. with choosing the installation packages or repos in GUI MODE and packages. We can complete the installation. Though there is lot to say and learn about new features of Red Hat 7. We will stick now only with installation of Openstack. Once we are ready with the machine. we need to follow below steps to install and configure openstack.

admin@192.168.233.128's password:

Last login: Sat Dec 6 10:22:29 2014

[admin@localhost ~]$

[admin@localhost ~]$ sudo su -

[sudo] password for admin:

Last login: Sat Dec 6 11:18:29 EST 2014 on pts/0

[root@localhost ~]#

[root@localhost ~]# df -h

Filesystem Size Used Avail Use% Mounted on

/dev/mapper/rhel-root 22G 3.0G 17G 15% /

devtmpfs 2.0G 0 2.0G 0% /dev

tmpfs 2.0G 88K 2.0G 1% /dev/shm

tmpfs 2.0G 9.0M 2.0G 1% /run

tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup

/dev/sda1 497M 120M 378M 25% /boot

[root@localhost ~]#

[root@localhost ~]# yum clean all

Loaded plugins: langpacks, product-id, subscription-manager

This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

There are no enabled repos.

Run "yum repolist all" to see the repos you have.

You can enable repos with yum-config-manager --enable

[root@localhost ~]#

[root@localhost ~]# cat /etc/resolv.conf

# Generated by NetworkManager

domain localdomain

search localdomain

nameserver 192.168.233.2

[root@localhost ~]#

[root@localhost ~]# vi /etc/resolv.conf

[root@localhost ~]#

[root@localhost ~]# ping google.com ---- Testing Internet connection.

PING google.com (173.194.117.104) 56(84) bytes of data.

64 bytes from sin01s17-in-f8.1e100.net (173.194.117.104): icmp_seq=1 ttl=128 time=109 ms

64 bytes from sin01s17-in-f8.1e100.net (173.194.117.104): icmp_seq=2 ttl=128 time=106 ms

--- google.com ping statistics ---

2 packets transmitted, 2 received, 0% packet loss, time 1000ms

rtt min/avg/max/mdev = 106.336/107.853/109.370/1.517 ms

[root@localhost ~]#

[root@localhost ~]# date

Sat Dec 6 11:20:34 EST 2014

[root@localhost ~]# subscription-manager register

Username: amit.chopra

Password:

The system has been registered with ID: 79a91a06-e182-47b7-9a51-d49625b7c2d9
[root@localhost ~]#
[root@localhost ~]# subscription-manager subscribe --auto
Installed Product Current Status:
Product Name: Red Hat Enterprise Linux Server
Status: Not Subscribed

[root@localhost ~]# subscription-manager list --consumed
No consumed subscription pools to list

"There was some issue with my credentials so i registered again and then run the same commands"

[root@localhost ~]# subscription-manager attach --pool=XYZ01234567
Pool with id XYZ01234567 could not be found.
[root@localhost ~]# subscription-manager register
This system is already registered. Use --force to override

If you have registered your machine once then you need to use "force" option to over ride the previous one with the new one like below.

[root@localhost ~]#

[root@localhost ~]# subscription-manager subscribe --auto

Installed Product Current Status:

Product Name: Red Hat Enterprise Linux Server

Status: Not Subscribed

[root@localhost ~]# subscription-manager --force register

Username: amit_chopra

Password:

The system has been registered with ID: " "

[root@localhost ~]# subscription-manager subscribe --auto

Installed Product Current Status:

Product Name: Red Hat Enterprise Linux Server

Status: Subscribed

the above shows that we are ready to go with the installation. we are following the steps given on Red hat to furnish the Installation.

[root@localhost ~]# subscription-manager list --consumed

+-------------------------------------------+

Consumed Subscriptions

+-------------------------------------------+

Subscription Name: 60 Day Self-Supported Red Hat Enterprise Linux OpenStack Platform Preview

Provides: Oracle Java (for RHEL Server)

Red Hat Software Collections Beta (for RHEL Server)

Red Hat OpenStack

Red Hat Enterprise Linux Load Balancer (for RHEL Server)

Red Hat OpenStack Beta

Red Hat Enterprise Linux Server

Red Hat Enterprise MRG Messaging

Red Hat Beta

Red Hat Software Collections (for RHEL Server)

Red Hat Enterprise Linux High Availability (for RHEL Server)

Red Hat Enterprise MRG Messaging 2 for RHEL 7

SKU: SER0406

Contract: 10592048

Account: 5530263

Serial: 7117916016893808521

Pool ID: 8a85f98149fa65f1014a11b9042377cc

Active: True

Quantity Used: 1

Service Level: Self-Support

Service Type: L1-L3

Status Details:

Subscription Type: Standard

Starts: 12/03/2014

Ends: 01/31/2015

System Type: Virtual

[root@localhost ~]# subscription-manager repos --disable=*

Repo 'rhel-7-server-rhn-tools-beta-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-v2vwin-1-debug-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-beta-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-beta-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-v2vwin-1-rpms' is disabled for this system.

Repo 'rhel-7-server-extras-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-beta-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-fastrack-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-rhn-tools-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-debug-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-debug-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-extras-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-debug-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-beta-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-fastrack-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-source-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-v2vwin-1-source-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-thirdparty-oracle-java-source-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-extras-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-fastrack-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-source-rpms' is disabled for this system.

Repo 'rhel-7-server-thirdparty-oracle-java-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-rhn-tools-debug-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-rpms' is disabled for this system.

Repo 'rhel-7-server-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-5.0-source-rpms' is disabled for this system.

Repo 'rhel-7-server-rh-common-beta-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-beta-debug-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-5.0-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-rhn-tools-rpms' is disabled for this system.

Repo 'rhel-server-rhscl-7-beta-debug-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-rhn-tools-source-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-fastrack-source-rpms' is disabled for this system.

Repo 'rhel-7-server-thirdparty-oracle-java-rpms' is disabled for this system.

Repo 'rhel-7-server-fastrack-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-5.0-rpms' is disabled for this system.

Repo 'rhel-7-server-thirdparty-oracle-java-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-fastrack-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-fastrack-source-rpms' is disabled for this system.

Repo 'rhel-ha-for-rhel-7-server-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-openstack-beta-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-rpms' is disabled for this system.

Repo 'rhel-7-server-rhn-tools-beta-source-rpms' is disabled for this system.

Repo 'rhel-7-server-fastrack-source-rpms' is disabled for this system.

Repo 'rhel-x86_64-server-7-mrg-messaging-2-source-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-rpms' is disabled for this system.

Repo 'rhel-x86_64-server-7-mrg-messaging-2-rpms' is disabled for this system.

Repo 'rhel-7-server-fastrack-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-supplementary-source-rpms' is disabled for this system.

Repo 'rhel-7-server-beta-debug-rpms' is disabled for this system.

Repo 'rhel-x86_64-server-7-mrg-messaging-2-debug-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-beta-rpms' is disabled for this system.

Repo 'rhel-7-server-optional-source-rpms' is disabled for this system.

[root@localhost ~]# subscription-manager repos --enable=rhel-7-server-rpms

Repo 'rhel-7-server-rpms' is enabled for this system.

[root@localhost ~]# subscription-manager repos --enable=rhel-7-server-optional-rpms

Repo 'rhel-7-server-optional-rpms' is enabled for this system.

[root@localhost ~]# subscription-manager repos --enable=rhel-7-server-openstack-5.0-rpms

Repo 'rhel-7-server-openstack-5.0-rpms' is enabled for this system.

Here we have disabled the extra repos which we will not be using.

[root@localhost ~]# yum install -y yum-plugin-priorities yum-utils

Loaded plugins: langpacks, product-id, subscription-manager

rhel-7-server-openstack-5.0-rpms | 3.1 kB 00:00:00

rhel-7-server-optional-rpms | 2.9 kB 00:00:00

rhel-7-server-rpms | 3.7 kB 00:00:00

(1/3): rhel-7-server-openstack-5.0-rpms/7Server/x86_64/primary_db | 284 kB 00:00:32

(2/3): rhel-7-server-optional-rpms/7Server/x86_64/primary_db | 1.8 MB 00:01:16

(3/3): rhel-7-server-rpms/7Server/x86_64/primary_db | 7.9 MB 00:04:16

(1/4): rhel-7-server-optional-rpms/7Server/x86_64/updateinfo | 98 kB 00:00:11

(2/4): rhel-7-server-openstack-5.0-rpms/7Server/x86_64/updateinfo | 91 kB 00:00:15

(3/4): rhel-7-server-rpms/7Server/x86_64/group_gz | 133 kB 00:00:17

(4/4): rhel-7-server-rpms/7Server/x86_64/updateinfo | 132 kB 00:00:17

Resolving Dependencies

--> Running transaction check

---> Package yum-plugin-priorities.noarch 0:1.1.31-25.el7_0 will be installed

---> Package yum-utils.noarch 0:1.1.31-24.el7 will be updated

---> Package yum-utils.noarch 0:1.1.31-25.el7_0 will be an update

--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================

Package Arch Version Repository Size

========================================================================================================================================================================

Installing:

yum-plugin-priorities noarch 1.1.31-25.el7_0 rhel-7-server-optional-rpms 23 k

Updating:

yum-utils noarch 1.1.31-25.el7_0 rhel-7-server-rpms 111 k

Transaction Summary

========================================================================================================================================================================

Install 1 Package

Upgrade 1 Package

Total download size: 134 k

Downloading packages:

No Presto metadata available for rhel-7-server-rpms

warning: /var/cache/yum/x86_64/7Server/rhel-7-server-optional-rpms/packages/yum-plugin-priorities-1.1.31-25.el7_0.noarch.rpm: Header V3 RSA/SHA256 Signature, key ID fd431d51: NOKEY

Public key for yum-plugin-priorities-1.1.31-25.el7_0.noarch.rpm is not installed

(1/2): yum-plugin-priorities-1.1.31-25.el7_0.noarch.rpm | 23 kB 00:00:08

Public key for yum-utils-1.1.31-25.el7_0.noarch.rpm is not installed 89% [====================================================- ] 43 kB/s | 120 kB 00:00:00 ETA

(2/2): yum-utils-1.1.31-25.el7_0.noarch.rpm | 111 kB 00:00:09

------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Total 14 kB/s | 134 kB 00:00:09

Retrieving key from file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

Importing GPG key 0xFD431D51:

Userid : "Red Hat, Inc. (release key 2) "

Fingerprint: 567e 347a d004 4ade 55ba 8a5f 199e 2f91 fd43 1d51

Package : redhat-release-server-7.0-1.el7.x86_64 (@anaconda/7.0)

From : /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

Importing GPG key 0x2FA658E0:

Userid : "Red Hat, Inc. (auxiliary key) "

Fingerprint: 43a6 e49c 4a38 f4be 9abf 2a53 4568 9c88 2fa6 58e0

Package : redhat-release-server-7.0-1.el7.x86_64 (@anaconda/7.0)

From : /etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Updating : yum-utils-1.1.31-25.el7_0.noarch 1/3

Installing : yum-plugin-priorities-1.1.31-25.el7_0.noarch 2/3

Cleanup : yum-utils-1.1.31-24.el7.noarch 3/3

rhel-7-server-openstack-5.0-rpms/7Server/x86_64/productid | 1.7 kB 00:00:00

rhel-7-server-rpms/7Server/x86_64/productid | 1.7 kB 00:00:00

Verifying : yum-plugin-priorities-1.1.31-25.el7_0.noarch 1/3

Verifying : yum-utils-1.1.31-25.el7_0.noarch 2/3

Verifying : yum-utils-1.1.31-24.el7.noarch 3/3

Installed:

yum-plugin-priorities.noarch 0:1.1.31-25.el7_0

Updated:

yum-utils.noarch 0:1.1.31-25.el7_0

Complete!

[root@localhost ~]# yum-config-manager --setopt=”rhel-7-server-openstack-5.0-rpms.priority=1” --enable rhel-7-server-openstack-5.0-rpms

Loaded plugins: langpacks, priorities, product-id

================================================================ repo: rhel-7-server-openstack-5.0-rpms ================================================================

[rhel-7-server-openstack-5.0-rpms]

async = True

bandwidth = 0

base_persistdir = /var/lib/yum/repos/x86_64/7Server

baseurl = https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/openstack/5.0/os

cache = 0

cachedir = /var/cache/yum/x86_64/7Server/rhel-7-server-openstack-5.0-rpms

check_config_file_age = True

cost = 1000

deltarpm_metadata_percentage = 100

deltarpm_percentage =

enabled = True

enablegroups = True

exclude =

failovermethod = priority

gpgcadir = /var/lib/yum/repos/x86_64/7Server/rhel-7-server-openstack-5.0-rpms/gpgcadir

gpgcakey =

gpgcheck = True

gpgdir = /var/lib/yum/repos/x86_64/7Server/rhel-7-server-openstack-5.0-rpms/gpgdir

gpgkey = file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

hdrdir = /var/cache/yum/x86_64/7Server/rhel-7-server-openstack-5.0-rpms/headers

http_caching = all

includepkgs =

ip_resolve =

keepalive = True

keepcache = False

mddownloadpolicy = sqlite

mdpolicy = group:small

mediaid =

metadata_expire = 86400

metadata_expire_filter = read-only:present

metalink =

minrate = 0

mirrorlist =

mirrorlist_expire = 86400

name = Red Hat OpenStack 5.0 for RHEL 7 (RPMs)

old_base_cache_dir =

password =

persistdir = /var/lib/yum/repos/x86_64/7Server/rhel-7-server-openstack-5.0-rpms

pkgdir = /var/cache/yum/x86_64/7Server/rhel-7-server-openstack-5.0-rpms/packages

priority = 99

proxy = False

proxy_dict =

proxy_password =

proxy_username =

repo_gpgcheck = False

retries = 10

skip_if_unavailable = False

ssl_check_cert_permissions = True

sslcacert = /etc/rhsm/ca/redhat-uep.pem

sslclientcert = /etc/pki/entitlement/7117916016893808521.pem

sslclientkey = /etc/pki/entitlement/7117916016893808521-key.pem

sslverify = True

throttle = 0

timeout = 30.0

ui_id = rhel-7-server-openstack-5.0-rpms/7Server/x86_64

ui_repoid_vars = releasever,

basearch

username =

[root@localhost ~]# yum update -y

Loaded plugins: langpacks, priorities, product-id, subscription-manager

rhel-7-server-openstack-5.0-rpms | 3.1 kB 00:00:00

rhel-7-server-optional-rpms

As update completes, kindly disable the NetWorkManager i.e. DHCP and reboot the machine.

Replaced:

libcacard.x86_64 10:1.5.3-60.el7 qemu-img.x86_64 10:1.5.3-60.el7 qemu-kvm.x86_64 10:1.5.3-60.el7 qemu-kvm-common.x86_64 10:1.5.3-60.el

Complete!

[root@localhost ~]# systemctl disable NetworkManager

rm '/etc/systemd/system/dbus-org.freedesktop.NetworkManager.service'

rm '/etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service'

rm '/etc/systemd/system/multi-user.target.wants/NetworkManager.service'

[root@localhost ~]# reboot

Terminated

------------

Log in again and run below commands :-

[root@localhost ~]# yum install -y openstack-packstack

Loaded plugins: langpacks, priorities, product-id, subscription-manager

this command may not complete successfully due to different errors so request you to run this thrice or four times to confirm that all packages are installed and verified. In my fourth attempt all packages got successfully installed.

[root@localhost ~]# yum install -y openstack-packstack

Loaded plugins: langpacks, priorities, product-id, subscription-manager

[Errno -2] Name or service not known

Resolving Dependencies

--> Running transaction check

---> Package openstack-packstack.noarch 0:2014.1.1-0.44.dev1251.el7ost will be installed

--> Processing Dependency: openstack-packstack-puppet = 2014.1.1-0.44.dev1251.el7ost for package: openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch

--> Processing Dependency: python-netaddr for package: openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch

--> Processing Dependency: openstack-puppet-modules for package: openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch

--> Running transaction check

---> Package openstack-packstack-puppet.noarch 0:2014.1.1-0.44.dev1251.el7ost will be installed

---> Package openstack-puppet-modules.noarch 0:2014.1.1-1.el7ost will be installed

--> Processing Dependency: rubygem-json for package: openstack-puppet-modules-2014.1.1-1.el7ost.noarch

---> Package python-netaddr.noarch 0:0.7.5-7.el7 will be installed

--> Running transaction check

---> Package rubygem-json.x86_64 0:1.7.7-22.el7_0 will be installed

--> Processing Dependency: ruby(rubygems) >= 2.0.14 for package: rubygem-json-1.7.7-22.el7_0.x86_64

--> Processing Dependency: ruby(release) for package: rubygem-json-1.7.7-22.el7_0.x86_64

--> Processing Dependency: libruby.so.2.0()(64bit) for package: rubygem-json-1.7.7-22.el7_0.x86_64

--> Running transaction check

---> Package ruby-libs.x86_64 0:2.0.0.353-22.el7_0 will be installed

---> Package rubygems.noarch 0:2.0.14-22.el7_0 will be installed

--> Processing Dependency: rubygem(rdoc) >= 4.0.0 for package: rubygems-2.0.14-22.el7_0.noarch

--> Processing Dependency: rubygem(psych) >= 2.0.0 for package: rubygems-2.0.14-22.el7_0.noarch

--> Processing Dependency: rubygem(io-console) >= 0.4.2 for package: rubygems-2.0.14-22.el7_0.noarch

--> Processing Dependency: /usr/bin/ruby for package: rubygems-2.0.14-22.el7_0.noarch

--> Running transaction check

---> Package ruby.x86_64 0:2.0.0.353-22.el7_0 will be installed

--> Processing Dependency: rubygem(bigdecimal) >= 1.2.0 for package: ruby-2.0.0.353-22.el7_0.x86_64

---> Package rubygem-io-console.x86_64 0:0.4.2-22.el7_0 will be installed

---> Package rubygem-psych.x86_64 0:2.0.0-22.el7_0 will be installed

--> Processing Dependency: libyaml-0.so.2()(64bit) for package: rubygem-psych-2.0.0-22.el7_0.x86_64

---> Package rubygem-rdoc.noarch 0:4.0.0-22.el7_0 will be installed

--> Processing Dependency: ruby(irb) = 2.0.0.353 for package: rubygem-rdoc-4.0.0-22.el7_0.noarch

--> Running transaction check

---> Package libyaml.x86_64 0:0.1.4-10.el7 will be installed

---> Package ruby-irb.noarch 0:2.0.0.353-22.el7_0 will be installed

---> Package rubygem-bigdecimal.x86_64 0:1.2.0-22.el7_0 will be installed

--> Finished Dependency Resolution

Dependencies Resolved

========================================================================================================================================================================

Package Arch Version Repository Size

========================================================================================================================================================================

Installing:

openstack-packstack noarch 2014.1.1-0.44.dev1251.el7ost rhel-7-server-openstack-5.0-rpms 205 k

Installing for dependencies:

libyaml x86_64 0.1.4-10.el7 rhel-7-server-rpms 55 k

openstack-packstack-puppet noarch 2014.1.1-0.44.dev1251.el7ost rhel-7-server-openstack-5.0-rpms 44 k

openstack-puppet-modules noarch 2014.1.1-1.el7ost rhel-7-server-openstack-5.0-rpms 1.3 M

python-netaddr noarch 0.7.5-7.el7 rhel-7-server-rpms 983 k

ruby x86_64 2.0.0.353-22.el7_0 rhel-7-server-rpms 66 k

ruby-irb noarch 2.0.0.353-22.el7_0 rhel-7-server-rpms 87 k

ruby-libs x86_64 2.0.0.353-22.el7_0 rhel-7-server-rpms 2.8 M

rubygem-bigdecimal x86_64 1.2.0-22.el7_0 rhel-7-server-rpms 78 k

rubygem-io-console x86_64 0.4.2-22.el7_0 rhel-7-server-rpms 49 k

rubygem-json x86_64 1.7.7-22.el7_0 rhel-7-server-rpms 75 k

rubygem-psych x86_64 2.0.0-22.el7_0 rhel-7-server-rpms 76 k

rubygem-rdoc noarch 4.0.0-22.el7_0 rhel-7-server-rpms 317 k

rubygems noarch 2.0.14-22.el7_0 rhel-7-server-rpms 211 k

Transaction Summary

========================================================================================================================================================================

Install 1 Package (+13 Dependent packages)

Total size: 6.2 M

Total download size: 304 k

Installed size: 22 M

Downloading packages:

No Presto metadata available for rhel-7-server-rpms

No Presto metadata available for rhel-7-server-openstack-5.0-rpms

libyaml-0.1.4-10.el7.x86_64.rp FAILED

https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/Packages/libyaml-0.1.4-10.el7.x86_64.rpm: [Errno 14] curl#7 - "Failed connect to cdn.redhat.com:443; Connection refused"

Trying other mirror.

openstack-packstack-puppet-201 FAILED

https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/openstack/5.0/os/Packages/openstack-packstack-puppet-2014.1.1-0.44.dev1251.el7ost.noarch.rpm: [Errno 14] curl#7 - "Failed connect to cdn.redhat.com:443; Connection refused"

Trying other mirror.

openstack-packstack-2014.1.1-0 FAILED

https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/openstack/5.0/os/Packages/openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch.rpm: [Errno 14] curl#7 - "Failed connect to cdn.redhat.com:443; Connection refused"

Trying other mirror.

libyaml-0.1.4-10.el7.x86_64.rp FAILED

https://cdn.redhat.com/content/dist/rhel/server/7/7Server/x86_64/os/Packages/libyaml-0.1.4-10.el7.x86_64.rpm: [Errno 14] curl#7 - "Failed connect to cdn.redhat.com:443; Connection refused"

Trying other mirror.

openstack-packstack-puppet-201 FAILED

Trying other mirror.

(1/3): libyaml-0.1.4-10.el7.x86_64.rpm | 55 kB 00:00:02

openstack-packstack-2014.1.1-0 FAILED

Trying other mirror.

(2/3): openstack-packstack-puppet-2014.1.1-0.44.dev1251.el7ost.noarch.rpm | 44 kB 00:00:02

(3/3): openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch.rpm | 205 kB 00:00:06

------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Total 4.2 kB/s | 304 kB 00:01:12

Running transaction check

Running transaction test

Transaction test succeeded

Running transaction

Installing : ruby-libs-2.0.0.353-22.el7_0.x86_64 1/14

Installing : python-netaddr-0.7.5-7.el7.noarch 2/14

Installing : openstack-packstack-puppet-2014.1.1-0.44.dev1251.el7ost.noarch 3/14

Installing : libyaml-0.1.4-10.el7.x86_64 4/14

Installing : ruby-irb-2.0.0.353-22.el7_0.noarch 5/14

Installing : ruby-2.0.0.353-22.el7_0.x86_64 6/14

Installing : rubygem-bigdecimal-1.2.0-22.el7_0.x86_64 7/14

Installing : rubygem-json-1.7.7-22.el7_0.x86_64 8/14

Installing : rubygem-io-console-0.4.2-22.el7_0.x86_64 9/14

Installing : rubygem-rdoc-4.0.0-22.el7_0.noarch 10/14

Installing : rubygems-2.0.14-22.el7_0.noarch 11/14

Installing : rubygem-psych-2.0.0-22.el7_0.x86_64 12/14

Installing : openstack-puppet-modules-2014.1.1-1.el7ost.noarch 13/14

Installing : openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch 14/14

Verifying : rubygem-psych-2.0.0-22.el7_0.x86_64 1/14

Verifying : ruby-irb-2.0.0.353-22.el7_0.noarch 2/14

Verifying : libyaml-0.1.4-10.el7.x86_64 3/14

Verifying : ruby-2.0.0.353-22.el7_0.x86_64 4/14

Verifying : ruby-libs-2.0.0.353-22.el7_0.x86_64 5/14

Verifying : rubygem-bigdecimal-1.2.0-22.el7_0.x86_64 6/14

Verifying : rubygem-json-1.7.7-22.el7_0.x86_64 7/14

Verifying : rubygem-io-console-0.4.2-22.el7_0.x86_64 8/14

Verifying : openstack-packstack-puppet-2014.1.1-0.44.dev1251.el7ost.noarch 9/14

Verifying : openstack-packstack-2014.1.1-0.44.dev1251.el7ost.noarch 10/14

Verifying : rubygem-rdoc-4.0.0-22.el7_0.noarch 11/14

Verifying : rubygems-2.0.14-22.el7_0.noarch 12/14

Verifying : openstack-puppet-modules-2014.1.1-1.el7ost.noarch 13/14

Verifying : python-netaddr-0.7.5-7.el7.noarch 14/14

Installed:

openstack-packstack.noarch 0:2014.1.1-0.44.dev1251.el7ost

Dependency Installed:

libyaml.x86_64 0:0.1.4-10.el7 openstack-packstack-puppet.noarch 0:2014.1.1-0.44.dev1251.el7ost openstack-puppet-modules.noarch 0:2014.1.1-1.el7ost

python-netaddr.noarch 0:0.7.5-7.el7 ruby.x86_64 0:2.0.0.353-22.el7_0 ruby-irb.noarch 0:2.0.0.353-22.el7_0

ruby-libs.x86_64 0:2.0.0.353-22.el7_0 rubygem-bigdecimal.x86_64 0:1.2.0-22.el7_0 rubygem-io-console.x86_64 0:0.4.2-22.el7_0

rubygem-json.x86_64 0:1.7.7-22.el7_0 rubygem-psych.x86_64 0:2.0.0-22.el7_0 rubygem-rdoc.noarch 0:4.0.0-22.el7_0

rubygems.noarch 0:2.0.14-22.el7_0

complete!.

Once these steps complete we will run our last command to get to go with the Openstack.

[root@localhost ~]# packstack --allinone

Welcome to Installer setup utility

Packstack changed given value to required value /root/.ssh/id_rsa.pub

Installing:

Clean Up [ DONE ]

Setting up ssh keys [ DONE ]

Discovering hosts' details [ DONE ]

Adding pre install manifest entries [ DONE ]

Preparing servers [ DONE ]

Adding AMQP manifest entries [ DONE ]

Adding MariaDB manifest entries [ DONE ]

Adding Keystone manifest entries [ DONE ]

Adding Glance Keystone manifest entries [ DONE ]

Adding Glance manifest entries [ DONE ]

Adding Cinder Keystone manifest entries [ DONE ]

Adding Cinder manifest entries [ DONE ]

Checking if the Cinder server has a cinder-volumes vg[ DONE ]

Adding Nova API manifest entries [ DONE ]

Adding Nova Keystone manifest entries [ DONE ]

Adding Nova Cert manifest entries [ DONE ]

Adding Nova Conductor manifest entries [ DONE ]

Creating ssh keys for Nova migration [ DONE ]

Gathering ssh host keys for Nova migration [ DONE ]

Adding Nova Compute manifest entries [ DONE ]

Adding Nova Scheduler manifest entries [ DONE ]

Adding Nova VNC Proxy manifest entries [ DONE ]

Adding Openstack Network-related Nova manifest entries[ DONE ]

Adding Nova Common manifest entries [ DONE ]

Adding Neutron API manifest entries [ DONE ]

Adding Neutron Keystone manifest entries [ DONE ]

Adding Neutron L3 manifest entries [ DONE ]

Adding Neutron L2 Agent manifest entries [ DONE ]

Adding Neutron DHCP Agent manifest entries [ DONE ]

Adding Neutron LBaaS Agent manifest entries [ DONE ]

Adding Neutron Metering Agent manifest entries [ DONE ]

Adding Neutron Metadata Agent manifest entries [ DONE ]

Checking if NetworkManager is enabled and running [ DONE ]

Adding OpenStack Client manifest entries [ DONE ]

Adding Horizon manifest entries [ DONE ]

Adding Swift Keystone manifest entries [ DONE ]

Adding Swift builder manifest entries [ DONE ]

Adding Swift proxy manifest entries [ DONE ]

Adding Swift storage manifest entries [ DONE ]

Adding Swift common manifest entries [ DONE ]

Adding Provisioning Demo manifest entries [ DONE ]

Adding Provisioning Glance manifest entries [ DONE ]

Adding MongoDB manifest entries [ DONE ]

Adding Ceilometer manifest entries [ DONE ]

Adding Ceilometer Keystone manifest entries [ DONE ]

Adding Nagios server manifest entries [ DONE ]

Adding Nagios host manifest entries [ DONE ]

Adding post install manifest entries [ DONE ]

Installing Dependencies [ DONE ]

Copying Puppet modules and manifests [ DONE ]

Applying 192.168.233.128_prescript.pp

192.168.233.128_prescript.pp: [ DONE ]

Applying 192.168.233.128_amqp.pp

Applying 192.168.233.128_mariadb.pp

192.168.233.128_amqp.pp: [ DONE ]

192.168.233.128_mariadb.pp: [ DONE ]

Applying 192.168.233.128_keystone.pp

Applying 192.168.233.128_glance.pp

Applying 192.168.233.128_cinder.pp

192.168.233.128_keystone.pp: [ DONE ]

192.168.233.128_glance.pp: [ DONE ]

192.168.233.128_cinder.pp: [ DONE ]

Applying 192.168.233.128_api_nova.pp

192.168.233.128_api_nova.pp: [ DONE ]

Applying 192.168.233.128_nova.pp

192.168.233.128_nova.pp: [ DONE ]

Applying 192.168.233.128_neutron.pp

192.168.233.128_neutron.pp: [ DONE ]

Applying 192.168.233.128_neutron_fwaas.pp

Applying 192.168.233.128_osclient.pp

Applying 192.168.233.128_horizon.pp

192.168.233.128_neutron_fwaas.pp: [ DONE ]

192.168.233.128_horizon.pp: [ DONE ]

192.168.233.128_osclient.pp: [ DONE ]

Applying 192.168.233.128_ring_swift.pp

192.168.233.128_ring_swift.pp: [ DONE ]

Applying 192.168.233.128_swift.pp

Applying 192.168.233.128_provision_demo.pp

Applying 192.168.233.128_provision_glance.pp

192.168.233.128_swift.pp: [ DONE ]

192.168.233.128_provision_demo.pp: [ DONE ]

192.168.233.128_provision_glance.pp: [ ERROR ]

Applying Puppet manifests [ ERROR ]

ERROR : Error appeared during Puppet run: 192.168.233.128_provision_glance.pp

Error: Execution of '/usr/bin/glance -T services -I glance -K 36df093044c34502 -N http://192.168.233.128:35357/v2.0/ image-create --name=cirros --is-public=Yes --container-format=bare --disk-format=qcow2 --copy-from=http://download.cirros-cloud.net/0.3.1/cirros-0.3.1-x86_64-disk.img' returned 1: 400 Bad Request

You will find full trace in log /var/tmp/packstack/20141206-142143-zQzqKD/manifests/192.168.233.128_provision_glance.pp.log

Please check log file /var/tmp/packstack/20141206-142143-zQzqKD/openstack-setup.log for more information

Additional information:

* A new answerfile was created in: /root/packstack-answers-20141206-142143.txt

* Time synchronization installation was skipped. Please note that unsynchronized time on server instances might be problem for some OpenStack components.

* File /root/keystonerc_admin has been created on OpenStack client host 192.168.233.128. To use the command line tools you need to source the file.

* To access the OpenStack Dashboard browse to http://192.168.233.128/dashboard .

Please, find your login credentials stored in the keystonerc_admin in your home directory.

* To use Nagios, browse to http://192.168.233.128/nagios username: nagiosadmin, password: 59a6a067fb6643f0

[root@localhost ~]#

Above error disappointed me, but later when i ignored these error and open the dashboard mentioned above in bold worked fine.

Once we open the same with explorer or chrome or mozilla. it looked fine to go with. below is teh scree shot.

Installation and configuration part completes here.

Now we can create images, upload ISO images and create the instance using the same. Configure Network, Storage, etc. For all rest we have to study open stack more and bring the same in use. I would like to say thanks to you all for reading this document and keep learning and sharing knowledge.

Love Sharing

Amit Chopra

Wednesday, September 10, 2014

Dreams of House and Cars, and we are done !!!!

Now a days media is making people not to have any dream except a house and a car here ... Do humans on earth have only this dream or need and don't they have or can't they have any dream except these two... Media please also help in building career and dreaming some people to become and find a perfect human being inside them... Yes i know These will Not Pay to the Media..

Thought of the day

Success stops when we stops failing....

Love sharing

Amit Chopra

Tuesday, June 24, 2014

Breaking things is a disease

Breaking things is a disease. Mostly found in humans till he self creates it and knows and pays the exact cost.

Love sharing

Amit Chopra

Sunday, June 15, 2014

Reducing Root LV EXT3 + Linux

Dear Friends,

Had worked on reducing the root file system some days back. So sharing the experience of the same.

A. Our Aim is to reduce the root file system, which is in EXT3. We also have other file systems, need to be reduced to free the space, but they are not allowing us to reduce the same online. All File systems are in EXT3.
B. Name of the file systems are /home, /var, /opt, and root i.e. / .
C. All of the above are not allowing us to unmount them.

/dev/mapper/VolGroup-LogVol00
/dev/mapper/VolGroup-LogVol02
/dev/mapper/VolGroup-LogVol04
/dev/mapper/VolGroup-LogVol06

Request you to please note down the name of the file system on paper as we may not be able to recall the complete path in RESCUE MODE.

E. Once checked, We can again check status using umount /opt, etc. It will say the message.

FILE SYSTEM/MOUNT POINTS are busy cannot umount.

or

umount: /: device is busy
umount: /var: device is busy
umount: /home: device is busy

F. Now to reduce them, take proper Downtime of the server, Take complete backup of the server. if in case things goes wrong. Then we will be having plan B.

G. Once all done, We are given approvals Get Set go to reduce the mount points in RESCUE MODE.

H. TO go into RESCUE MODE, We should have a Boot Able DVD, or Boot Able USB.

I. Insert the DVD, Reboot the system, once installation screen appears, press F5.

J. Write LINUX RESCUE on the prompt.
the system will start booting to rescue mode, I have experienced some times the server/system doesn't go in rescue mode in one go. so friends don't panic. Boot up the system again using CTRL+ALT+DEL.
and follow step I and J again.

K. Once server start booting, it will show blue screen Asking for Language selection, {at the same time it will show the heading as LINUX RESCUE also, Friends as it is DVD part which is booting up, not the Hard disk}.
It will show next screen for switching on NFS {skip this step/NO},
Now it will ask for whether File system to be mounted. Select NO.
Server/System will bring to the prompt #, at the same time.

L. Now we can run commands like, df -hT, e2fsck -y, lvm, etc. those we need.

M. Now run commands,

#LVM
#lvm vgchange -a y VolGroup00 ---- It will show VG is active state now.

Now run

#e2fsck -y /dev/mapper/VolGrooupLogVol00

It will do five checks. Once all done successfully.

#resize2fs "name of the file system" "Size need to be set"

Now run lvreduce

#lvm lvreduce -L "size need to be set" "name of the file system"

example :- #lvm lvreduce -L 10G /dev/mapper/VolGroupLvol00

Similar process to reduce other file systems. Do these steps carefully as extension of LV doesn't harm but reduction of the same can corrupt the file system and can also cause Data lose.

* I have tried to reduce the /opt and /home in single user mode or init 1. they were successfully reduced from there. You can also do the same from rescue mode.

once all done, reboot.

The system will be up and running with the desired reduced size.

Precaution :-

a. Take backup of the server/system. Complete backup/Snap shot will be best option in case of VM.
b. Note down the name of the File systems need to be reduced so that no confusion occurs at the time of activity.
c. Never run the command lvreduce without unmouting and running e2fsck, resize2fs before. If you have done this then we have to bring the same size back to earlier size, we can check the same from file ----------- /etc/lvm/backup/VolGroup00. extend the file system using "lvextend -L ....." and then run resize2fs /dev/mapper/VolGroup-LogVol##. Then again reduce the same using proper steps.
d. Try to reduce to a specific figure till where you feel safe "For those who are starting working new on LVM.
e. Also request you to keep in mind the Logical extents of the logical Volume.
f. There is a way we can check using command "tune2fs -l "name of the filesystem" " whether the file system can be reduced online or in multiple user mode i.e. init 3.
else We can also check with un-mounting the File system after following proper way and process.

tune2fs -l /dev/mapper/VolGroup-LogVol00

tune2fs -l /dev/mapper/VolGroup-LogVol02

tune2fs -l /dev/mapper/VolGroup-LogVol04

tune2fs -l /dev/mapper/VolGroup-LogVol06

Please do correct me and if need to edit some steps.... All comments are welcome as learning is our goal.

Thanks & Love Sharing
Amit Chopra

Thursday, May 29, 2014

Problem in using GUI due to haldaemon LINUX

Dear Friends,

Today, came across a situation and learned a new thing, when my GUI console i.e. int 5 was showing me hung keyboard and hung mouse. seemed like some GUI or XMANAGER problem has come. System was not at all responding at the GUI console. tried to crash and generate the kdump using key combinations "CTRL+ALT+PRINT SCREEN+Key C" the dump generated and system crashed and rebooted.
Next stopped the system on selecting the kernel and booting with other kernel. The system booted up in init 5 but still the mouse and keyboard were not working. so you can say without these not able to access the system. (Yes we could try with taking putty of the machine). so to check the same booted the system to single user mode and booted the system from there to init 3 run level. System booted up and mouse, keyboard started working. Went to the services, there is a daemon called "HALDAEMON" i.e. Hardware Abstraction Layer. this is for recognizing various type of hardware attached to the system. It enables them to work and making them accessible.
This issue seemed to me creating problem at console only, but not at the putty, need to check this.

Now made this service enable to run at run level 5 using :-

#chkconfig --level 5 haldaemon on

This was done at run level 3, as we enable the services to run on other run level from one run level as defined above. After enabling the haldaemon to work on run level 5. booted the system to jump on run level 5 using init 5 from # prompt. Issue resolved. My keyboard and ouse started working on run level 5.

Thanks for the visit & Love sharing
Amit Chopra

Tuesday, May 27, 2014

Gautam Buddha's Sayings

Hi Friends,

There are lot to experience in and for this life. Buddha's thoughts take to us to internal journey. We need to know ourselves before heading towards any other person, thing, etc.

---He Said :-

* "Chaos is inherent in all compounded things, Strive on with diligence."

* "You will not be punished for your anger, you will be punished by your anger".

Love Sharing
Amit Chopra

Thursday, May 22, 2014

It is very difficult to be yourself

If we love someone, we become like him.
If we hate someone, We become like him,
If we have a strong enemy, Sometimes We think, act and react like him,
All these leads us to be like others,
But very few people success in knowing themselves, As we study less about ourselves.
So we need to give time to study ourselves first.

Love Sharing and Learning
Amit Chopra

Tuesday, May 20, 2014

Interview Questions on hp unix 11iV3

Dear Friends,

I recently came across with some basic interview question, found repeating most of the time in interviews. trying to list some of them here, May help us all.

a. Steps to create and extend an LV i.e. Volume Group and Logical Volume.
b. How to reduce and extend root lv online?
c. Command to take Ignite Backup and procedure to recover the same. Comparison between Recovery speed of Ignite Tape Backup and Ignite Server Backup. Which is suitable and accurate according to you?
d. How to enable package switching in Service Guard?
e. How to add Logical Volume in Service Guard Cluster Online?
f. Replacing Lock Disk in Cluster and steps to do so.
g. What is the Lock disk is mirrored, what are the steps?
f. What is the major difference between the VG LOCK LUN and VG LOCK DISK?
h. How to disable root of NFS client to make changed in NFS server mount point?
i. How will you trouble shoot the issues of NFS?
j. If you are having space in your file system still you are not able to create any file? How can you correct this?
k. What is the difference between Mount Point and File system?
l. Command to go in single user mode?
m. what are lq and lvm mode and how they are useful?
n. Steps to update a package?
--------

Some Question on HP VM :-

o. How will you boot a HP VM machine?
p. How to assign resource to hpvm machine and if we are assigning a IO BUS to the hpvm machine, do we need to take a reboot?
q. Disk assigned to the hpvm machine and special file also generated, after extending the VG size has not increased, What is the cause?
r. How to assign and create a virtual nic for hpvm machine?

Some Question on VPAR :-

s. How to update VPMON? What precaution has to be taken and planning has to be done before upgrading the VPMON?
t. If we are upgrading HP UNIX OS to v3 from v2 then what should be the version of VPMON on v2?
u. How we will boot the machine to VPMON?
v. What should be the size of ILM and CLM memory while increasing or assigning memory to VPAR machine?
w. What are the things we can do from efi shell and the uses of parconfig or parmodify command?
x. What are fs0: , fs3: on the disk available from efi shell.
y. What is the role of swap for the machine and how to create the same online?
z. What is the requirement to create NPAR and VPAR? And what is the minimum resource requirement to create the NPAR and VPAR?

Tanks for the Visit, Keep Visiting

Love Sharing and Learning
Amit Chopra

Friday, May 16, 2014

grub grub grub grub grub repeated message LINUX

Dear Friends,

My linux system was giving multiple or infinite message of GRUB:-

GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB GRUB

Now to solve this, google our Best friend helped me in resolving this problem.

Step 1 :- Created a bootable USB.
Step 2 :- Booted the system with setting the USB bootable option in BIOS.
Step 3 :- when booted, 3 options appeared as usual to install the OS, booting to rescue mode.
press F5 key to rescue mode and bring to prompt.

now write

linux resuce

it will bring the system to rescue mode with selection of Language and an option to skip the network connectivity. We also have to skip the mounting of File system part.

It will bring the system to # prompt.

From this # prompt i.e. linux rescue mode. We can reduce the root volume if needed. SO bringing the topic back to grub issue.

Now write command grub at linux rescue # prompt. it will bring the system to grub> prompt. like below :-

#
#grub
#

grub> find /grub/stage1
(hd0,0)
grub> root (hd0,X)
grub> setup (hd0)

after this my system was booting. and the message which was coming, gone.

but it showed corrupted lines in kernel and disk selction so edited the same and then rebooted.

we need to use tab and write the correct kernel path, boot the system with the correct path of the kernel. System successfully rebooted. For making this change permanent. we need to edit the file /etc/grub.conf. like bwlow is the system gub.conf which worked well.

[root@localhost grub]#
[root@localhost grub]# cat /etc/grub.conf
# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE: You have a /boot partition. This means that
#          all kernel and initrd paths are relative to /boot/, eg.
#          root (hd1,4)
#          kernel /vmlinuz-version ro root=/dev/VolGroup00/LogVol00
#          initrd /initrd-version.img
#boot=/dev/sdb
default=0
timeout=5
splashimage=(hd0,4)/grub/splash.xpm.gz
hiddenmenu
title Red Hat Enterprise Linux Server (2.6.18-308.el5)
        root (hd0,4)
        kernel /vmlinuz-2.6.18-308.el5 ro root=/dev/VolGroup00/LogVol00 rhgb quiet crashkernel=128M@16M
        initrd /initrd-2.6.18-308.el5.img
title Other
        rootnoverify (hd0,0)
        chainloader +1
You have new mail in /var/spool/mail/root
[root@localhost grub]#

My system's Other OS is Windows which was also facing problem While booting up. Now it is also fine.

Now my system is giving me an option of booting the system with DUAL BOOT option.

Love Sharing
Amit Chopra