Bug 157909: Unbootable system, affects many, apparently ignored

Aaron C. de Bruyn ubuntu-devel-discuss at darkpixel.com
Wed Dec 26 01:49:08 UTC 2007

Thank you for replying Markus.

This is the first time I've heard the term AHCI.
I did some googling and read up on it.  From what I understand, AHCI is a mode you can set in the BIOS.
I dug through the system BIOS and the BIOS on both cards and found no such setting.
The cards are extremely cheap soft-RAID cards that I purchased simply so I could get 8 400GB SATA drives into my server case.

So to answer "What stops you from switching to AHCI?" I would have to say to things:
1. No clue how to enable AHCI
2. If it's a BIOS setting, it appears my cards don't support it.


> Am 25.12.2007 um 23:35 schrieb Aaron C. de Bruyn:
>> Can anyone provide me with some guidance on how to resolve this issue?  Am 
>> I overblowing the issue since I am affected?
> Just to understand the problem better:
> Exposing SATA drives as IDE drives to the OS appears to be a temporary 
> solution until all SATA driver programmers ( Hello Intel :-) ) have catched 
> up and made an AHCI driver available. Ubuntu runs in AHCI mode just fine, 
> even on a board which lacks a proper driver for Windows XP. AHCI is 
> noticeable faster than IDE.
> What stops you from switching to AHCI?
> Markus
> - - - - - - - - - - - - - - - - - - -
> Dipl. Ing. Markus Hitter
> http://www.jump-ing.de/

More information about the Ubuntu-devel-discuss mailing list