Bruce Lowekamp wrote:
>
> Starting with 2.4.19 and continuing in 2.4.20-pre8, the order the
> kernel associates with the two IDE controllers (one VIA vt8233 and one
> PDC20265 intended for RAID use) on the A7V266-E has been reversed.
> The BIOS and GRUB consider the VIA to be first, so root(hd0,0) loads
> the kernel from the first device on the VIA controller. Prior to
> 2.4.19, the OS then booted with that drive identified as hda.
> Beginning with 2.4.19, however, the kernel instead identifies the PDC
> as ide0 and ide1, and puts the VIA at ide2 and ide3, resulting in the
> boot drive being hde.
>
> I found an earlier mention of this on the mailing list, but no
> solution or workaround was suggested. We are using a workaround where
> 2.4.19 and later kernels are booted with root=/dev/hde1 and earlier
> with hda1, and fstab lists both hda2 and hde2 as swap partitions,
> simply failing to insert one. This works, but the general ugliness and
> maintenance headaches since this is different than the typical machine
> config we use around here make it difficult to use in the long run.
>
> I'm not sure what the process of identifying order of controllers
> involves, but the discrepancy between the BIOS, older kernels, and
> newer kernels seems like something that should be fixed if possible.
I'm not sure what the kernel issue is, but there is a simple work
around. Enable CONFIG_BLK_DEV_OFFBOARD (aka boot off-board chipsets
first) in the ide section. You can also produce the same effect via
ide=reverse on the kernel command line (or an append statement in lilo).
This will reverse the order in which the chipsets are seen.
-- There is no such thing as obsolete hardware. Merely hardware that other people don't want. (The Second Rule of Hardware Acquisition) Sam Flory <sflory@rackable.com>- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Oct 07 2002 - 22:00:35 EST