2.6.8.1 / 2.6.9-rc3-ds1 jffs2 root mount failure

[Prashant Alves]

Hi,

I have been trying to get IXP425 based coyote board to boot with 2.6.8.1 /
2.6.9-rc3-ds1 with mtd-snapshot-20041005. I have selected jffs2 to also be
updated from the snapshot.

However at bootup I get:
Kernel panic - not syncing:VFS: Unable to mount root fs on
unknown-block(31,2)

The root on flash is a jffs2 filesystem and I pass root=/dev/mtdblock2 as
my kernel parameters.

The partition mounts fine when I boot using NFS and do a manual mount. It
also  works fine as root on a 2.4.19-ds3 kernel that I have.

Tracing through it seems get_fs_names() in mount_block_root() in
init/do_mounts.c fails.

Any idea what is causing this ? Any suggestions where I should be looking
for the cause of the problem.

Thanks,
Prashant Alves