how to use initramfs with l4linux

[Ryan Brown]

How do I use an initramfs with l4linux? I tried using
"l4x_rd=rom/initrd.cpio.gz" but it doesn't work. I see linux trying to use
it:

INITRD: 15000000 - 15114e00
...
Unpacking initramfs...
INITRD: Freeing memory.
...

But then I get
Failed to execute /init
Kernel panic - not syncing: No init found.  Try passing init= option to
kernel. See Linux Documentation/init.txt for guidance.

I'm able to use the same initramfs file to boot normal linux kernel. I
tried various combinations of cpio formats and compression but it doesn't
seem to help. The only thing that works is compiling the initramfs into the
kernel which I want to avoid.
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