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How to Upgrade Centos 5.7 using Centos 5.8 ISO image on Vmware workstation

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Operating Systems Linux Red Hat How to Upgrade Centos 5.7 using Centos 5.8 ISO image on Vmware workstation
# 1  
Old 08-18-2012
How to Upgrade Centos 5.7 using Centos 5.8 ISO image on Vmware workstation

Dear Linux Experts,

On my windows 7 desktop with the help of Vmware workstation (Version 7.1),
created virtual machine and installed Centos 5.7 successfully using ISO image.
Query : Is this possible to upgrade the Centos 5.7 using Centos 5.8 ISO image to Centos version 5.8?.. if yes kindly guide me the procedure to upgrade.

Thanks in advance,
# 2  
Old 08-19-2012
Yes, it is possible to do what you want to do. Essentially, what you need to do is create a local repository containing the Centos 5.8 packages and upgrade your system using that repository.

# mkdir -p /var/www/html/dvd/iso
# mount -o loop /your.iso /var/www/html/dvd/iso
# cd /var/www/html/dvd
# createrepo .
# yum clean all

Create a file /etc/yum.repos.d/file.repo which should have the contents as mentioned below:
name=My repository

When you do "yum list" you should be able to see the new repository. If so, then you can use "yum upgrade" to upgrade your system.
# 3  
Old 08-20-2012
Thanks fpmurphy!...It worked !...I followed your steps and upgraded to CentOS 5.8.

I have couple of queries which I could not understand during the upgrade. Kindly clarify the below queires:
1.I have image CentOS 5.8 ISO image in the hard drive and I tried to mount this to virtual machine running with CentOS 5.7 and it got mounted as (/media/CentOS_5.8_Final). When I checked the contents in the mounted directory (/media/CentOS_5.8_Final) , i could see lot of release notes and few directories like isolinux,Centos,etc.,. but unable to find the ISO image file..
In this scenario, i was unable to perform the upgrade.Later I burnt the Centos 5.8 ISO image file in the DVD and mounted it. By doing this , i could see the ISO image file .
Please clarify what is the difference when we mount the ISO image from the hard drive and the same image burnt in DVD ?

2.I mounted the ISO image and ran "yum list"..and got error. Later then I connected my system to internet and re-run "yum list" and it worked.

To upgrade from 5.7 to 5.8 , Do we need internet connection mandatory, without internet connection can't we do the upgrade.?.

Please clarfiy these two questions..so that it would be helpful to understand.

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