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Replacing System Drve

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Last response: in Linux/Free BSD
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So I built this CentOS 4.8 system using two removable sata disks. On the second disk I put the home and opt directories so if I wanted to rebuild the OS or the main system drive failed, I would not have to back up user data. Welllll, the main drive with root, etc is not behaving well. Making sick sounds. What I want to know how to do is how to build a new disk containing the OS sans the home and opt directories but still boot and have the system recognize the second drive as home and opt. Thoughts please? And thanks!

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Buy a new drive, install the latest version of CentOS on it, I think it's 5.5, then when you're done, power down, plug in your 2nd disk, boot up and add it to your fstab.

su to root

Backup /etc/fstab

Edit /etc/fstab

Add lines for your 2nd drive at the bottom and run /bin/mount -a

Make sure you've got good backups of your fstab in case something doesn't work quite right.

The syntax is pretty simple.

It's something like this:

  1. /dev/sdb1 /home ext3 defaults 1 4


Good luck :) 
 
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