‘RHEL’ topic list

Update CentOS 4 to CentOS 5 remotely

December 31st, 2009

I just successfully updated my Dell PowerEdge 1850 from CentOS 4.8 to CentOS 5.4, luckily the issues I faced were not so rare. The steps I used are listed below, may it helpful for you as well! Although this post is mainly intended for CentOS it should work on RHEL systems as well.

Before you start, A word of advice i believe most experienced RHEL/CentOS users will show you regarding what you’re thinking:

Upgrade between minor versions (i.e. CentOS 5.2 -> 5.3 -> 5.4, or even 5.0 -> 5.4) YES
Upgrade between major system versions (i.e. CentOS 4.8 to CentOS 5.4) NO » Read more: Update CentOS 4 to CentOS 5 remotely

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Posted in Cmd Reviews, System Tuning

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Convert RHEL 5 to CentOS 5

October 20th, 2009

Recently I was working on a Dell PE1950 at work and decided to get Xen installed, so that I can create some virtual servers for our developers.

Finding out that Xen in Redhat Enterprise Linux is not so easy to download – I cannot find it from any public accessible websites, I decided to use CentOS’s yum repoes to download and install Xen. When I have CentOS yum repo created in /etc/yum.repo.d, I noticed that it cannot work in RHEL – It cannot recognize OS version without some updates of application. » Read more: Convert RHEL 5 to CentOS 5

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Posted in Open Source, System Tuning

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