Mount ISO inside LXC

[cmonty14]

Hello!

I want to access an ISO located in /var/lib/vz/template/iso/ from inside a LXC container running Debian 8.
However, I failed to run a loop mount command inside the container after mounting NFS share on host.

I found some statements that loop mount inside LXC is not recommended.

Then I found this thread here in the forum, but the command
pct set 106 --mp0 local:iso/siduction-15.1.0-paintitblack-gnome-amd64-01601162124.iso.iso,mp=/mnt/iso
fails with this error:
thomas@pc4-svp:~$ sudo pct set 106 --mp0 local:iso/siduction-15.1.0-paintitblack-gnome-amd64-201601162124.iso.iso,mp=/mnt/iso
storage 'local' does not allow content type 'rootdir' (Container)

Question:
How can I mount an ISO inside LXC?

THX

 

[LnxBil]

There is no Proxmox VE way to do this, just do the LXC way:

http://askubuntu.com/questions/376345/allow-loop-mounting-files-inside-lxc-containers

Another possibility is to mount to mount it in your host to the correct mountpoint inside your lxc container.

 

[venk25]

Sorry to resuscitate an old thread.

...

Another possibility is to mount to mount it in your host to the correct mountpoint inside your lxc container.

Can you please give the steps do this?

 

[LnxBil]

Can you please give the steps do this?

Similar to the aforementioned askubuntu question just via mount:

$ mount -o loop,ro /<path>/<to>/file.iso /<path>/<to>/<container>/mnt

 

[venk25]

Sorry, still a dummy here.

What would be "/<path>/<to>/<container>/mnt". Can you please give an example?

 

[LnxBil]

Sorry, still a dummy here.

What would be "/<path>/<to>/<container>/mnt". Can you please give an example?

Sure,

mount -o loop,ro /zpool/templates/template/iso/debian-9.3.0-amd64-netinst.iso /zpool/customer-10000/subvol-10001-disk-1/mnt

 

[venk25]

Still a bit lost.

What would the equivalent of your "/zpool/customer-10000/subvol-10001-disk-1/mnt" in a standard setup with the default storage (local & local-lvm) for a container?

 

[LnxBil]

What would the equivalent of your "/zpool/customer-10000/subvol-10001-disk-1/mnt" in a standard setup with the default storage (local & local-lvm) for a container?

You have to find out where the container is mounted and then use this mount point. If you'd use ZFS, it would be as simple as my example: /rpool/proxmox/subvol-100-disk-1/mnt

FYI: IMHO best storage type for containers is ZFS :-D

 

[Brett Carroll]

This blog post describes how to make a directory on the Proxmox node visible inside a container:
blog.felixbrucker.com/2015/10/01/how-to-mount-host-directories-inside-a-proxmox-lxc-container/

The key is to edit the container's configuration file in /etc/pve/lxc/<CONTAINER_ID>.conf and add a new line describing the mount point.
mp0:/path/on/proxmox/node,mp=/path/on/container

Note: You will need to restart the container to see the mounted data.

You can mount an ISO file on the Proxmox node then mount that directory in the container.

This example will mount an ISO named data_disk.iso on the Proxmox node in /mnt and make it available in the container in /mnt:
mount -o loop,ro /tmp/data_disk.iso /mnt

echo mp0:/mnt,mp=/mnt >> /etc/pve/lxc/101.conf