LXC block device direct access and other device/PCI passthrough?

[verulian]

Running OpenMediaVault (OMV) through an LXC would be quite useful and it appears there is a desire to do this. Can storage device (eg block storage) be passed through to LXC containers for direct hardware access?

Here is a thread expressing such interest: https://forum.openmediavault.org/index.php?thread/39809-omv6-and-lxc/

 

[oguz]

hi,

yes, you can do device passthrough with bindmounts [0]

searching the forum will land you to some similar setups for sure.

[0]: https://pve.proxmox.com/wiki/Linux_Container#_bind_mount_points

 

[verulian]

This is very interesting, thank you. I was not aware that bindmounts could provide direct disk access! All use cases I see both on the forum out off the forum seem to indicate some level of abstraction. Do you have a specific search result where it shows giving direct hardware access to the container?

 

[oguz]

All use cases I see both on the forum out off the forum seem to indicate some level of abstraction. Do you have a specific search result where it shows giving direct hardware access to the container?

sure, take a look at the following ones [0] [1]

make note that you'll probably have to change the lxc.cgroup.devices entries with lxc.cgroup2.devices, but the rest should be the same.

[0]: https://forum.proxmox.com/threads/lxc-usb-passthrough-zwave-stick.30058/
[1]: https://forum.proxmox.com/threads/usb-pass-through-in-lxc-container.73742/

 

[kzaoaai]

I am looking to passthrough the pci SATA controller (which I successfully did for Windows VM) to an LXC, which would make the OMV lxc very useful. Haven't found a way yet. Bind mounts will not give hardware info to OMV, and will be more complicated to manager as I'd have to do it for every disk.