Instructions for installing CentOS on your computer¶

Why CentOS?¶

see Linux distribution recommendation

We provide the following instructions for CentOS Installation:

Download the ISO disk of CentOS 5.4 ¶

1. ISO files are available at
   1. http://wiki.centos.org/Download
2. Click on i386 for 32bit machines or x86_64 for 64bit machines
3. Pick a mirror and download 'CentOS-5.4-x86_64-bin-DVD.iso' file

Confirm download went correctly¶

perform a SHA1SUM confirmation:

sha1sum CentOS-5.4-x86_64-bin-DVD.iso

The result should be the same as in the sha1sum file provided by CentOS:

• http://centos.mirrors.tds.net/pub/linux/centos/5.4/isos/x86_64/sha1sum.txt for 64bit
• http://centos.mirrors.tds.net/pub/linux/centos/5.4/isos/i386/sha1sum.txt for 32bit

Burn ISO file to DVD disk¶

Use dvdrecord in Linux to burn disk

dvdrecord -v -dao gracetime=10 dev=/dev/dvd speed=16 CentOS-5.4-x86_64-bin-DVD.iso

Install CentOS 5.4 with default packages ¶

• Setup network, root, password as desired
• This install will assume that only "Desktop - GNOME" to be selected
• More information available at [http://wiki.centos.org/Documentation CentOS Documentation]

Add yourself to the sudoers file¶

Make sure you have root permission.
Open the file in an editor. ex. vi /etc/sudoers
Look for the line: root ALL=(ALL) ALL.
Add this line below the root version:

your_username ALL=(ALL)       ALL

Logout and log back in with your username.

The CentOS installation is complete.

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