Users of testing (lenny) - do not upgrade!

[Martin Michlmayr <tbm@cyrius.com>]

Kevin Price reported that the new initramfs-tools in testing (version
0.92) generates a ramdisk that does not boot correctly on the NSLU2 -
it makes your system unbootable (see bug #478236).  Note that this
bug only affects users of testing - users of Debian 4.0 are not
affected.

If you run Debian testing (lenny) rather than stable (etch) on your
NSLU2, please do _not_ upgrade until a fixed package enters testing.

If you have already upgraded but not rebooted yet, you should be able
to flash the old, working image with:
    cd /boot
    mv initrd.img-2.6.24-1-ixp4xx initrd.img-2.6.24-1-ixp4xx~
    mv initrd.img-2.6.24-1-ixp4xx initrd.img-2.6.24-1-ixp4xx.bak
    flash-kernel

If you have upgraded, rebooted and your NSLU2 now fails to boot, there
are two recovery options:

1) If your root partition is on sda1 and you run arm (rather than
armel), you can download the following image and flash it with upslug2:
http://www.cyrius.com/debian/nslu2/files/sda1-2.6.24-1.bin

2) If the first option doesn't work for you, you can download the
"etch" installer from http://slug-firmware.net, flash it, start it,
run it until the partitioning software starts, then go back, open a
shell (last but one point in the menu) and issue the following
commands:

~ # mkdir /x
~ # mount /dev/sda1 /x
~ # mount -t proc none /x/proc
~ # mount --bind /dev/ /x/dev
~ # chroot /x
sh-3.1# cd /boot
sh-3.1# mv initrd.img-2.6.24-1-ixp4xx initrd.img-2.6.24-1-ixp4xx~
sh-3.1# mv initrd.img-2.6.24-1-ixp4xx initrd.img-2.6.24-1-ixp4xx.bak
sh-3.1#
sh-3.1# flash-kernel
Flashing kernel: done.
Flashing initramfs: done.
sh-3.1#
sh-3.1# exit
~ # umount /x/proc
~ # umount /x/dev
~ # umount /x
~ # reboot

I hope this works for you.  If not, please let me know.

Sorry for the inconveniences.
-- 
Martin Michlmayr
http://www.cyrius.com/