Lost VM and LVM after host reboot

[peterandrea27]

This has been an odd issue, after reviewing the forum for a week I'm hitting a wall. Running Virtual Environment 4.3-1

Running a single hvm on the host
Gracefully shutdown the guest
Rebooted host via GUI

Upon reboot there is no sign of the hvm (vm-100) on the host in terms of configuration. Nothing shown in qm, nothing in the gui, no LVM present, only the pve/data LVM. No hardware issues/faults are present. It's like it's a fresh install and nothing was ever running.

 

[dcsapak]

can you post the output of

pveversion -v
ls /etc/pve/qemu-server

 

[peterandrea27]

Sure:

pveversion -v
proxmox-ve: 4.3-66 (running kernel: 4.4.19-1-pve)
pve-manager: 4.3-1 (running version: 4.3-1/e7cdc165)
pve-kernel-4.4.19-1-pve: 4.4.19-66
lvm2: 2.02.116-pve3
corosync-pve: 2.4.0-1
libqb0: 1.0-1
pve-cluster: 4.0-46
qemu-server: 4.0-88
pve-firmware: 1.1-9
libpve-common-perl: 4.0-73
libpve-access-control: 4.0-19
libpve-storage-perl: 4.0-61
pve-libspice-server1: 0.12.8-1
vncterm: 1.2-1
pve-qemu-kvm: 2.6.1-6
pve-container: 1.0-75
pve-firewall: 2.0-29
pve-ha-manager: 1.0-35
ksm-control-daemon: 1.2-1
glusterfs-client: 3.5.2-2+deb8u2
lxc-pve: 2.0.4-1
lxcfs: 2.0.3-pve1
criu: 1.6.0-1
novnc-pve: 0.5-8
zfsutils: 0.6.5.7-pve10~bpo80

ls /etc/pve/qemu-server
~#

 

[dcsapak]

aside from the fact that you run outdated versions, i have no idea what caused this

do you have any logs from before the reboot? task logs? backups?

 

[peterandrea27]

All of the logs appear to be intact. The task logs don't show anything other than the requested reboot. Where would I even look to get a hint of how this happened? Essentially I shutdown the VM (from the VM), then used the GUI to shutdown the host. After reboot the system is essentially a fresh install. No trace of any configuration or LVM.

 

[dcsapak]

mhmm this is rather strange

can you upload the file /var/log/syslog ? (anonymised if necessary)

 

[peterandrea27]

Sure thing. Here is the syslog with 2 days prior of rotating journals... I've included comments to indicate when I issued reboot. Removed any identifiable info. Thanks!

 

[dcsapak]

how does your storage config look like? lvm? zfs? hardware-raid? multiple disks?
is any configuration you have done still there?

can you reproduce this? (e.g. create a vm, start it , shut it down, reboot the server)