Re: legacy ATA -> AHCI switch after installation

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Am 15.07.2010 08:14, schrieb Roberto Malinverni:
> My mainbord is dying, so I plan to replace it during this weekend.
> Originally the installation of the OS (Arch of course) was performed with my
> sata HD in "legacy ATA mode" set in the BIOS. I'm thinking this time to use
> native AHCI mode for the hard disks - no real need, I'm just curious.
> Apart from the other issues related to a "motherboard transplant" I'm
> already familiar with, do you think that changing the hard drive mode will
> give me particular troubles? IIRC, the ahci kernel module is normally loaded
> alongside the others "ata/pata related", so maybe a simple rebuild of the
> ramdisk is all that I need.

On the first boot, you'll need to boot with the fallback initramfs. You
can then regenerate the initramfs ('mkinitcpio -p kernel26') to account
for the drivers changes.

If you have more than one drive, you should also use labels or UUIDs to
identify your file systems in the bootloader and fstab.

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