I can reproduce this too with 2.6.15-26-386 #1 PREEMPT. Recovery is simple, the device mapped just gets all out of sync. Rejig the devices and remove the snapshot and reboot. eg:
mv /dev/mapper/vg_sys-lv_vmware /dev/mapper/vg_sys-lv_vmware_snap ; mv /dev/mapper/vg_sys-lv_vmware-real /dev/mapper/vg_sys-lv_vmware; fsck /dev/mapper/vg_sys-lv_vmware; lvremove /dev/vg_sys/lv_vmware_snap; touch /forcefsck; reboot; I think its related to my bug https://launchpad.net/distros/ubuntu/+source/linux- source-2.6.17/+bug/71567 -- (LVM) Booting fails if a snapshot LV is present on VG https://launchpad.net/bugs/58627 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
