Can't (easily) clone a container after upgrade to v26, but there is a workaround

TrueNAS General
1

No more incus in 26.

You can snapshot and clone the container, but it will not appear in the GUI.

What does appear to work (and it will clone the hostname too so you need to change it) is the following:

  1. Use the GUI to make a new Container
  2. Use the shell to zfs destroy it
  3. zfs clone from a snapshot of your “gold” version named with the name you just deleted

So the truenas GUI is now pointing to your clone from snapshot rather than the fresh Container.

2

I thought it was already known that incus will be replaced by libvirt in 26…
And i expect that there are still bugs with the lxc backend in the beta, that’s the main reason i did not upgrade to it
Documentation will propably come with time after or with the full release later this year

1 Like
3

I’m not sure I understand the complaint here. There’s no documentation on how to clone a container in 25.10 either, nor for that matter is there any UI-supported method for doing so that’s been lost in 26. If the functionality doesn’t exist in the UI, then we’d be very unlikely to document it.

If you want the ability to clone a container to be added to the UI, then you’d need to create a Feature Request to request the new functionality.

4

Please vote here if you want the feature: Add ability to clone a container from the GUI

I am not complaining the feature is there and but not documented.

The workaround in my original edited post seems to work in the meantime.