Container loses bind mounted disk on restart

[berni]

Hi experts,

my Samba container is planned to use file space from a dedicated disk. The disk is an LVM (for snapshot backup and the possibility to extend it later). I've read some postings and the Wiki about bind mounting LVMs and so I followed that description.

The Wiki is a bit fuzzy about the unmount script, so I tried with and without. Results:

• Without unmount: With each container restart (from proxmox Web interface), the disk gets mounted again, and /etc/mtab gets one additional line with the bind mount (n restarts = n+1 bind mount lines). But disk seems to be accessible. That looked a bit weird, so I tried:
• With unmount: After container restart, the disk is not (re)mounted. Neither in the container, nor on the host.

So, can the additional bind mount line be ignored and the unmount script omitted? Or is there a better way to provide the container with a disk? (I would like to easily restart a container after an update - if required).

System is:
pve-manager: 1.5-8 (pve-manager/1.5/4674)
running kernel: 2.6.24-10-pve
proxmox-ve-2.6.24: 1.5-21
pve-kernel-2.6.24-10-pve: 2.6.24-21
pve-kernel-2.6.18-1-pve: 2.6.18-4
qemu-server: 1.1-11
pve-firmware: 1.0-3
libpve-storage-perl: 1.0-10
vncterm: 0.9-2
vzctl: 3.0.23-1pve8
vzdump: 1.2-5
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.11.1-2

Kind regards,
berni