[Bug 216615] [NEW] Fails to mount root filesystem when upgrading to Hardy(development version) on the 440MX/PIIX/ICH based pc.

[Hiroshi Miura]

Public bug reported:

Binary package hint: initramfs-tools

With linux-image-2.6.24-16-generic and Panasonic CF-R1(440MX/Pentium III), after upgrading kernel package and initramfs-tools package in Apr. 12th, it fails to mount root file system in initramfs. It goes busybox shell in several minutes after showing 'waining root file system' message.
It works fine by the hardy's packages  in Apr. 9th(2.6.24-15-generic and 2.6.22-14-generic).

A machine uses 440MX chipset it was recognized as hda in 7.04 and 7.10 but hardy recognize it as sda.
I found ata_piix and sd_mod is not loaded then couldn't find the device in busybox session.

After loading ata_piix/sd_mod, it can recognize hdd and I mount root filesystem by hand.
I can fixes initramfs image by hand such as follows:

(initramfs) modprobe ata_piix
(initramfs) modprobe sd_mod
(initramfs) mkdir /mnt;mount /dev/sda2 /mnt
(initramfs) chroot /mnt /bin/bash
root at none#  echo ata_piix >> /etc/initramfs/modules
root at none#  update-initramfs
root at none@ update-grub

then reboot, works fine.

A problem looks like a bug on a upgrade script in initramfs-tools
package or an auto detection of chipset(udev?).

versions 
initramfs-tools 0.85ubuntu36 - (updated April 10th according to changelog)
linux-image 2.6.24-16-generic, 2.6.22-14-generic, 2.6.24-15-generic


Hiroshi

** Affects: initramfs-tools (Ubuntu)
     Importance: Undecided
         Status: New

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Fails to mount root filesystem when upgrading to Hardy(development version) on the 440MX/PIIX/ICH  based pc.
https://bugs.launchpad.net/bugs/216615
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