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Instructions for installing CentOS on your computer » History » Version 48

Amber Herold, 04/24/2012 03:36 PM

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h1. Instructions for installing CentOS on your computer
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h2. Why CentOS?
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If you have a new computer(s) for your Leginon/Appion installation, we recommend installing CentOS because it is considered to be more stable than other varieties of Linux.
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CentOS is the same as Red Hat Enterprise Linux (RHEL), except that it is free and supported by the community.
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We have most experience in the installation on CentOS and this installation guide has specific instruction for the process.
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see [[Select_Linux_distribution_to_use|Linux distribution recommendation]] for more.
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h2. Download the ISO disk of CentOS 5.8 
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 # ISO files are available at
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 ## http://wiki.centos.org/Download
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 ## http://mirrors.kernel.org/centos/
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 # Click on i386 for 32bit machines or x86_64 for 64bit machines
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 # Pick a mirror and download 'CentOS-5.8-i386-bin-DVD-1of2.iso ' file
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h2. Confirm download went correctly
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perform a SHA1SUM confirmation:
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<pre>
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sha1sum CentOS-5.5-x86_64-bin-DVD.iso
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</pre>
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The result should be the same as in the sha1sum file provided by CentOS. This is found at the same location you downloaded the .iso file.
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For example:
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* http://centos.mirrors.tds.net/pub/linux/centos/5.4/isos/x86_64/sha1sum.txt for 64bit
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* http://centos.mirrors.tds.net/pub/linux/centos/5.4/isos/i386/sha1sum.txt for 32bit
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h2. Burn ISO file to DVD disk 
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Use dvdrecord in Linux to burn disk
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<pre>
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dvdrecord -v -dao gracetime=10 dev=/dev/dvd speed=16 CentOS-5.4-x86_64-bin-DVD.iso
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</pre>
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h2. Install CentOS 5.5 with default packages 
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 * Setup network, root, password as desired
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 * This install will assume that only *"Desktop - GNOME"* to be selected
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 * More information available at [http://wiki.centos.org/Documentation CentOS Documentation]
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h2. Add yourself to the sudoers file 
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Make sure you have root permission.
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Open the file in an editor. ex. vi /etc/sudoers
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Look for the line: root ALL=(ALL) ALL.
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Add this line below the root version:
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<pre>
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your_username ALL=(ALL)       ALL
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</pre>
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Logout and log back in with your username.
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The CentOS installation is complete.
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______
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[[Select Linux distribution to use|< Select Linux distribution to use ]] | [[Download additional Software|Download additional Software >]]
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