hfs_mountfs failure when booting

[musisat]

Hi again. I have been getting darwin to boot successfully on some virtual machines running Ubuntu 14.04, but on other machines running Ubuntu 14.04 I get a hfs_mounts failure while booting.

hfs_mounthfsplus: unknown Volume Signature
hfs_mountfs: encountered failure 22
hfs_mountroot: hfs_mounts returned 22, rvp (0xc1019f10) name (unknown device)
cannot mount root, errno = 19

Then this causes my machine to experience kernel oops: general protection fault: 0000 [#1] SMP.
I am following the same instructions on all of my machines for booting. I have tried reinstalling Ubuntu 14.04 on the machine that's having problems, but it still doesn't work. (This is an actual machine, but I have had the same problem on a virtual machine too.) The only difference that I can see is that the machines are running different versions of the linux kernel.

Have you seen this issue before or know what might be causing it?

[b-man]

I haven't seen this issue myself, but it appears to possibly be a bug within the Linux kernel. Have you tried installing a different kernel version on that particular machine? If I were you I would try matching the kernel version to a version found on the working machines and see if that works.

[musisat]

I haven't figured out what the problem is yet, but I decided to just run on a virtual machine.

[cdickman]

Tried many different kernels...

Added memory device md0/rmd0 (02000000/0D000000) at 00000000808B3000 for 0000000002000000
BSD root: md0, major 2, minor 0
MAC Framework enabling multilabel support: root_device -> / (hfs)
hfs_mounthfsplus: unknown Volume Signature
hfs_mountfs: encountered failure 22
hfs_mountroot: hfs_mountfs returned 22, rvp (0xc1016f10) name (unknown device)
cannot mount root, errno = 19
BSD root: md0, major 2, minor 0
MAC Framework enabling multilabel support: root_device -> / (hfs)
hfs_mounthfsplus: unknown Volume Signature
hfs_mountfs: encountered failure 22
hfs_mountroot: hfs_mountfs returned 22, rvp (0xc1016f10) name (unknown device)
cannot mount root, errno = 19
qemu: terminating on signal 2

Possibly janky Ramdisk? or hfsplus kernel module?
Working kernel config for Ubuntu that has brought up the root_device?