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Bug#303135: debian-installer: ata_piix blocking but not supporting PATA devices. D-I thus fails to install.


Frans Pop wrote on 06/04/2005 00:42:
the ata_piix kernel module blocks the PATA part of the chipset
but doesn't support the PATA devices.

Some additional info on this issue. There is a lot of info in the Ubuntu
bug report referenced in this discussion on #d-boot.

<Kamion> oh, we turned on LIBATA_ENABLE_ATAPI in the kernel as well
<Kamion> the submitter mentioned LIBATA_ENABLE_PATA, which is different;
   and defining that breaks stuff

I was unable to find any breakage from defining LIBATA_ENABLE_PATA, but I can confirm that it didn't help either.

<fjp> Ah.
<Kamion> because on some chipsets both piix and ata_piix get the same PCI id in the hotplug pcimap
<Kamion> and they both try to claim the disk, which goes totally haywire:
   you get silent data corruption reading from CD-ROM

If that is true, all I can say is: YIKES!
However, I tried loading the piix driver on the system in question but it didn't find any channels to support, even before loading ide_generic or ata_piix.

<Kamion> LIBATA_ENABLE_ATAPI seemed sufficient
<Kamion> if the ide_generic workaround works, that would probably be a lot easier for Debian;
   it would "only" be some hairy hw-detect code
<fjp> Kamion: Works for installation, but will probably still cause problems after
   reboot because the SATA driver will be loaded by the initrd before the generic driver.
<Kamion> right

Exactly. To use the workaroung also after reboot, I had to manually modify the load-modules (or whatever it is called) script in the initrd. However, since I don't have a problem accessing the harddisc at that time, it's less of an issue for me (I use netinst-Images anyway).


Es gibt ausführliche Ausführungen,
die auch tatsächlich ins Aus führen...

Gabriel Laub (poln. Schriftsteller u. Satiriker, 1928-1998)

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