Change SATA mode to AHCI on installed server

[Jorge Armando Medina]

On 09/01/2010 08:30 AM, Ahmed Kamal wrote:
>    On 09/01/2010 02:12 PM, Jorge Andres Brugger wrote:
>> I want to change SATA mode on a server already installed. Should I take
>> care of something before make the change at the BIOS setup?
>>
>> Thanks.
>
> The only thing I'd check is that /etc/fstab mounts using UUIDs and not
> /dev/sd? names. Other than that, just try it, if it doesn't boot, revert
> the BIOS setting and mention there's a problem
>

And of course the root parameter to the kernel image in grub.

What I dont know is that the UUID will change when you change the sata 
mode, you can check it out with blkid(8).

Another way is using the by-id or by-path format, check /dev/disk/by-*