Comment 8 for bug 691985

@mgmiller - thanks for your help. You'll notice that /cdrom is full and this is where update-initramfs is trying to write. In bug 562312 padding space of 30MB was added to allow room for updating-initramfs. I've created a Maverick task for that bug so we can get that fix added in. In your case you might want to try removing older kernels to free up space.