[uml-user] self-built root filesystem failed to boot

[Han <kee...@gm...>]

Hi,

I've built a root filesystem based off Debian Squeeze because I wanted to
include all built (e.g. gcc) tools in.  However,  i was not able to boot
the UML with this rootfs due to this error:

<snip>
Kernel panic - not syncing: No init found.  Try passing init= option to
kernel.
</snip>

here is how I ran the UML:

./linux ubda=/nobackup/hxu2/uml/debian-root-fs mem=128M

I also tried to add "init=/sbin/init" or "init=3" at the end, but got the
same error.

I believe I missed something when building the rootfs for the Init option.
But what is it?  How should I set the init option in the rootfs?  please
advise.

thanks
Han