Bug#378344: [powerpc,prep] On PReP boxes, root should be autodetected, since there is no bootloader.

[Sven Luther <sven.luther@wanadoo.fr>]

severity 378344 grave
# Upping severity, since this bug makes a PReP d-i install not being able to
# boot in the resulting system. Furthermore, this is a general regression from
# sarge and initrd-tools.
Thanks

Max, ...

When playing with initramfs-tools Motorola Powerstack PReP box, i noticed that
the machine didn't find the root device on reboot. I had chosen a LVM setup,
not sure if this influence the issue.

I had to give the root=/dev/powerstack/root argument by hand on the kernel
command line, which is less than optimal.

I booted into the system, and added ROOT=/dev/powerstack/root, but it would be
nice if this was autodetected, as it is done in both yaird and initrd-tools.

Furthermore, it would be nice if the ROOT= option would be documented, and an
empty entry would be present in the default config file, like the other
options. Does ROOT=probe also work in initramfs-tools, like it did for
initrd-tools ? 

Friendly,

Sven Luther