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View Full Version : [ubuntu] 8.10 and 8.04, cannot install with AHCI disabled



Skuzniak
November 11th, 2008, 02:59 AM
Hi everyone,

I recently tried to install Ubuntu 8.10, only to be greeted with a black screen when attempting to load the live CD. I believe this can be attributed to my HD2400, which the new graphical system seems to not like very much. Swapping to my brother's 8800GT resolved this, but that is another issue. The problem I am currently facing is if I have AHCI disabled, Ubuntu (both 8.04 and 8.10) do not detect my hard drive at all, either through the installer or the live desktop. If I enable AHCI, the hard drives are detected fine. If I install Ubuntu with it enabled, then switch it off, Ubuntu hangs on the loading bar following GRUB forever (waited 3 hours, nothing).

Having AHCI enabled adds ~10-15 seconds to my bootup, I get a 'AHCI BIOS' splashscreen on every bootup with it enabled. I would prefer to leave it disabled.

Is it possible to make Ubuntu recognize my hard drive with AHCI disabled? If so, how?

Partyboi2
November 11th, 2008, 04:38 AM
Have you tried booting with pci=nomsi as a boot option?
https://help.ubuntu.com/community/BootOptions

Skuzniak
November 11th, 2008, 08:06 AM
Figured it out myself... booting with all_generic_ide boot paramater fixed it. Thanks.