[SOLVED] Can I bind-mount a directory into a running lxc?
- Thread starter n0x0n
- Start date
Hi,
I would've guessed the behavior would be the same as for volume mount points, but in fact, mounting into a running container is not yet handled for bind and device mounts. So thanks for the report
! I sent a patch that should make it work in a future version.
I would've guessed the behavior would be the same as for volume mount points, but in fact, mounting into a running container is not yet handled for bind and device mounts. So thanks for the report
! I sent a patch that should make it work in a future version.
Sure, more testing never hurts! Patching the file is enough if you use
pct, changes are picked up immediately then. To have the API daemons reload the module, use systemctl reload-or-restart pveproxy.service pvedaemon.service. If you want to go back to the packaged version, you can use apt install --reinstall pve-container.Applied patch and tested.
Testcase 1: Mounting a host directory into running LXC using
Testcase 2) Mounting a host directory into running LXC using the webgui. Couldn't test that, because I don't know how. I can only add storage 'local-vm' and not a host directory to bind mount.
Wanted to also test unmounting but became aware that I don't know how to do that, either. Is there an option in
Testcase 1: Mounting a host directory into running LXC using
pct set 100 -mp0 /mnt,mp=/media/usb. If not existant, the mountpoint is immediately created and the host directory is mounted into the LXC. Very nice!Testcase 2) Mounting a host directory into running LXC using the webgui. Couldn't test that, because I don't know how. I can only add storage 'local-vm' and not a host directory to bind mount.
Wanted to also test unmounting but became aware that I don't know how to do that, either. Is there an option in
pct to unmount a mountpoint from a comtainer?
Yes, creating bind and device mounts is a rather advanced feature and not exposed in the web UI. IIRC, it's also root-only for security reasons.
When you remove a mount point with
When you remove a mount point with
pct set -delete mpX or Detach in the UI, the change is not applied while the container is running. If you need that feature, feel free to open a feature request on our bugtracker outlining your use case.
Than you, I will. It would be consistent with the new behaviour, as attaching now doesn't need a container restart.
Have a good week!