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8.6

Moving Ubuntu install from Ext3 to Ext4 and Raid1

Asked by brianratbjsystemsdotcodotuk in Linux Setup, Ubuntu

Tags: unbuntu ext4 raid1

I have an Ubuntu 9.04 default install on a system with 2 x 250gb SATA Hard Drives.  Ubuntu is only installed on one of the 2 HDs. I use it for email, web surfing (Thunderbird and Firefox), and also for web development (php and html).  i also have Virtualbox installed, and have 3 VMs installed, WinXP, WIn7 (RC) and Centos.

I would like to move the system to use EXT4 and also to Raid1, using the second (currently unused HD.

I'd like to do it without having to re-iinstall all the "extras" that I have currently installed.

My thinking is this:

1. Run Gparted on the second HD and create partiions that match the ones on the first, except set them to EXT4 and Raid partition (creating the raid devices with only one entry - can that be done in gparted? - I suspect I can do in command line using mdadm.

2. Do an ubuntu install on the "new" HD, and update it to the latest update status.

3. Boot from the "old" system Copy /home /etc /user /opt across from the old HD to the new (do I need any other directories/files?)

4. Boot from the new system, and check that everything seems to be working.

5 Re-partition the old HD to EXT4 and Raid (perhaps i might use another HD here, keeping the old drive in case of disaster)

6 Add the newly created partitions (on the old HD) to the raid arrays using mdadm (I know how to do this).  Can I use any gui to do this?

7 Enjoy

So, some feedback or indication of gotchas would be very helpful

Cheers

Brian
[+][-]09/30/09 02:54 AM, ID: 25456919Accepted Solution

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About this solution

Zones: Linux Setup, Ubuntu
Tags: unbuntu ext4 raid1
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Solution Provided By: rindi
Participating Experts: 1
Solution Grade: A
 
[+][-]09/30/09 01:49 AM, ID: 25456606Expert Comment

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[+][-]09/30/09 02:34 AM, ID: 25456847Author Comment

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[+][-]09/30/09 09:24 AM, ID: 25460510Author Comment

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