How to convert a VM into LXC in Proxmox VE 6.0.2+?

[ceweithr]

• PVE version: 6.2-4
• Kernel version: 5.4.41-1
• source VM: ubuntu1804-amd64
• target LXC: ubuntu1804-amd64 in LXC format

I've used PVE for almost 2 years and I love it very much. Now I want to convert my VM created by PVE into LXC that can ran on PVE with full features like other LXC orginally created by PVE Web Interface.

I just wonder if that is a solution. Although I would like to use the converted LXC in console mode, its source system is VM with GUI. I don't know if that is compatiable.

Looking forward to find a way to get it done...

ps: I would prefer to manage my converted LXC by xterm.js

 

[Dunuin]

I'm also interested in that.

 

[tom]

There is no one button migration, basically you have to:

1. Create a new LXC container
2. Copy all settings and data, eg. with rsync

 

[Tealk]

There is no one button migration, basically you have to:

so set up a new machine and install everything again and then copy everything?

 

[Tealk]

I have found another tutorial for this on the net, what do you say?
https://snikt.net/blog/2014/04/07/how-to-convert-an-kvm-image-into-a-lxc-container/

 

[Gilberto Ferreira]

I have found another tutorial for this on the net, what do you say?
https://snikt.net/blog/2014/04/07/how-to-convert-an-kvm-image-into-a-lxc-container/

That's nice.
Did you actually try it?? I'd like to know.

 

[Tealk]

That's nice.
Did you actually try it?? I'd like to know.

No I have never tried it, sorry

 

[Gilberto Ferreira]

No I have never tried it, sorry

Well. I made myself some test here, and realize that when do rsync copy, after start the ct, I was unable to login with root or any other user.
Just could do that, after change unprivileged to 0, like that:
unprivileged: 0

Don't know if has secucirty concern about that. Thanks
BTW I have had used this like to copy
rsync -av . --exclude=/etc --exclude=/usr/src --exclude=/bin --exclude=/lib --exclude=/lib32 --exclude=/lib64 --exclude=/libx32 --exclude=/sb
in --exclude=/boot /var/lib/lxc/100/rootfs/

 

[Lsalmon]

My vm was on a zvol with an LVM filesystem, I managed to convert to a container by first mounting then activating the LVM as per:
https://gist.github.com/pshchelo/6ffabbffaedc46456b39c037d16e1d8c
and instead of <image.qcow2> put /dev/<device> device being where the disks symlink points in /dev/pool/vm-110-disk-0(root disk)
Then once inside root: tar the whole directory which you can then use to create a container with.