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Swapping mobo with installed CentOS 5
By: rekha singh | 12 Jun 2010 2:40 pm
I have a system running CentOS 5.4. I needed to upgrade the memory but alas, it only has the 2 slots which are already full. I picked up a motherboard cheap that works with my ancient Quad Core AMD processor but instead of nVidia chipset it is an AMD chipset. That means the entirety of disk drivers, video drivers, etc will be different. I would like to hear of anyone has done this without starting fresh and what the gotchas are besides the obvious back everything up. CommentsOk , there are no problems. You system will work perfectly, 'cause unlike Windows Linux is a modular kernel. On the next boot (already on new motherboard) all of your hardware will be re-detected, and the correct modules will be loaded. The only "problem" that can happen is your NIC appear as "eth1", because "eth0" is already "remembered" from the old motherboard... (just edit udev rules to correct this)
By: rekha singh | 12 Jun 2010
When you boot with the new board, the new hardware should be detected and the correct modules should load. Now, where you MAY run into problems is with the disks... I don't know how many drives you have, nor if they are SATA or IDE...
BUT, if you, say, take the disk that's plugged into your existing SATA channel 0 and accidentally plug it in to Channel 2 on the new board, you COULD see some issues booting. In theory, I believe the use of UUIDs to identify partitions should take care of that, but it is something to be on the look out for.
But driver wise, as Jefferson says, you should, in theory at least, be ok.
The only other gotcha I can think off off the top of my head is perhaps video being weird, or sound not working right, or networking not functioning correctly due to odd hardware or something, but the chances are good you should be able to at least boot the system and sort that all out later.
Good luck with this Loyal, it'll be interesting to see how smoothly this goes for you.
Cheers
By: rekha singh | 12 Jun 2010
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