Can you please try again? This bug might be related to bug #238 which has recently been fixed. Interesting would also be if you can boot Haiku from that partition using Qemu or VMware directly (ie. via direct hard drive support).
For example, with Qemu, you would start it like this:
qemu -serial stdio -hda /dev/disk/ide/ata/0/master/0/raw -snapshot
