This bug was never understood, and is no longer repeatable with identical hardware. It was probably fixed, but there have been too many changes to the kernel/device/initialisation routines in the meantime to identify the resolution.
** Changed in: initramfs-tools (Ubuntu) Status: Needs Info => Rejected -- CF flash /boot does not mount using initramfs (0.25) https://launchpad.net/bugs/21855 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs