[Bug 524893] Re: Can't boot initramfses

Loïc Minier lool at dooz.org
Tue Mar 2 12:09:28 GMT 2010

@Dustin: I'd love if you could assist on this bug; to reproduce, boot:

with qemu-system-arm -M versatilepb -cpu cortex-a8 -m 256  -kernel
vmlinuz -initrd initrd.gz

what you will probably see is:
[    1.866499] Trying to unpack rootfs image as initramfs...
[    1.875076] rootfs image is not initramfs (junk in compressed archive); looks like an initrd
[    5.347930] RAMDISK: Couldn't find valid RAM disk image starting at 0.

which means that the initramfs support doesn't work.  (I also tried with
a gunzipped initrd to no luck)

We want initramfs support as on the other plaforms, but that doesn't
work for an unknown reason; apparently this work on real hardware, so
likely specific to the qemu ARM loader.

NB: the latest linux upload has CONFIG_CRAMFS=y on armel, so the RAMDISK is likely to become mountable as an initrd; that's not what we want, but it's a good workaround for now...

Can't boot initramfses
You received this bug notification because you are a member of Ubuntu
Server Team, which is subscribed to qemu-kvm in ubuntu.

More information about the Ubuntu-server-bugs mailing list