How do you dist-upgrade LXC containers?

[breakaway9000]

As in title. I am running 17.04 now which is EoL as of Jan 2018. As a result apt etc are not working. If this was a VM, I'd just go the dist-upgrade route.

Is there an easy way to upgrade the container(s) from 17.04 to the latest version 17.10 or 18.04?

 

[wolfgang]

Hi,

normally it is no problem to upgrade the container.
It depends on the container if it is a standard container from the Poxmox repo it will be no problem.
When you use a container from an external source I don't know.

Is there an easy way to upgrade the container(s) from 17.04 to the latest version 17.10 or 18.04?

apt update && apt full-upgrade && do-release-upgrade

 

[jaxjexjox]

Hi,

normally it is no problem to upgrade the container.
It depends on the container if it is a standard container from the Poxmox repo it will be no problem.
When you use a container from an external source I don't know.


apt update && apt full-upgrade && do-release-upgrade

I'm a little confused.

I built a Ubuntu 20.04.4 LTS LXC about 6 months ago.
I've ran your command above.

I'm getting the following:

Checking for a new Ubuntu release
There is no development version of an LTS available.
To upgrade to the latest non-LTS development release
set Prompt=normal in /etc/update-manager/release-upgrades.

I'm not after a development LTS release, I'm after a final LTS release ?
Am I doing something wrong, or misinterpreting the message?

 

[Neobin]

Afaik do-release-upgrade "waits" for the first point release.
With other words, you either have to wait until 22.04.1 is released or you have to use: do-release-upgrade -d. (You can check before with: do-release-upgrade -d -c.)

Do not forget the backup beforehand!

 

[jaxjexjox]

I'm still learning, foolish! Thank you.

I didn't edit the sources.list (I just googled) should I have done so?
Thank you!

 

[Neobin]

I didn't edit the sources.list (I just googled) should I have done so?

No, this handles do-release-upgrade for you.

 

[jaxjexjox]

Any idea why after the update, I can't SSH in?

Access denied?
But SSH is enabled and allow root is in the sshd_config file.

SSH is live and working just no access, have to get in via console right now

 

[Neobin]

Not sure if this has something to do with it:

ssh-rsa is now disabled by default in OpenSSH 363. See bug 1961833 210 to learn how to selectively re-enable it if necessary. If you are upgrading a system remotely over SSH, you should check that you are not relying on this to ensure that you will retain access after the upgrade.

https://discourse.ubuntu.com/t/jammy-jellyfish-release-notes/24668

What I found out is, that Guacamole also can not connect via SSH (password authentication) after the upgrade anymore, but with Windows Terminal (PowerShell) it works normal.

Did you try a complete shutdown (not only reboot) of the LXC after the upgrade already?
And is nesting enabled (nesting=1 under Features in the LXC-Options) for the LXC?

Otherwise I have no idea, sorry.

 

[jaxjexjox]

I suspect some of my issues, may have been due to the fact my proxmox was slightly out of date and unable to work with the latest kernel which 22.04 requires.

I think anyhow.

I've opted to nuke and re-create from scratch and of course, update proxmox.