Public bug reported:
Binary package hint: linux-source-2.6.20
My home desktop has two HDDs, Maxtor 6L080J4 (primary master) and WDC
WD2000JB-00GVA0 (primary slave). connected to a SiS 5513 onboard IDE
interface.
Before upgrade to 2.6.22 kernel, the system booted fine, detecting the
drives as /dev/hda and /dev/hdb respectively.
After upgrade, it fails to detect the Maxtor; instead of that, it
detects the WDC as /dev/sda (despite it's the primary *slave*), and the
detection message for the WD drive comes up twice in the startup log. I
can't even paste the kmesg, because I can't mount any writable partition
at that point (the Linux partition is on the undetected drive, and the
other partitions can't be mounted because the initial ramdisk doesn't
contain necessary filesystem modules - like writable NTFS or FAT).
However, by trial and error I've been able to compile a version of the
kernel that seems to boot kind of properly (not without several warning
messages due to duplicate symbols, but at least the system is fully
functional). I will attach a diff from stock kernel to the custom one -
but it will probably be worthless because so many things were changed at
a time. Perhaps the fact that the new driver uses /dev/sda instead of
/dev/hdb may tell you more than the whole diff.
Any hints on how to get the kmesg on some permanent medium (tried a
pendrive too, but it doesn't mount with modules on default initial
ramdisk), or how to provide more information in any other way?
This bug makes Gutsy Gibbon live CDs totally useless on my machine,
despite the fact that Feisty worked fine. I don't know if it affects any
other machine, so I don't know if it has any real significance for the
general public (I can always use the custom kernel).
** Affects: linux-source-2.6.20 (Ubuntu)
Importance: Undecided
Status: New
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stock 2.6.22 kernels don't detect both IDE HDDs anymore
https://bugs.launchpad.net/bugs/150693
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