# Fout na de upgrade naar Ubuntu 22.04.1 LTS

**URL:** https://meta.discourse.org/t/error-after-upgrading-to-ubuntu-22-04-1-lts/236022
**Category:** Self-hosting
**Tags:** docker
**Created:** [12 augustus 2022 om 18:59 UTC](https://meta.discourse.org/t/error-after-upgrading-to-ubuntu-22-04-1-lts/236022 "2022-08-12T18:59:01Z")
**Posts on this page:** 1
**Showing post:** 1

<div class="post-metadata">

### Author: ![uwe\_keim](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/uwe_keim/32/326762_2.png) [@uwe\_keim](https://meta.discourse.org/u/uwe_keim)
#### Post date: [12 augustus 2022 om 18:59 UTC](https://meta.discourse.org/t/error-after-upgrading-to-ubuntu-22-04-1-lts/236022/1 "2022-08-12T18:59:01Z")

</div>

Just updated to Ubuntu 22.04.1 LTS.

Then did:

```ssh
cd /var/discourse
sudo git pull
sudo ./launcher rebuild app

```

It worked for some minutes then failed with an error (see below).

If I now do this again:

```ssh
sudo ./launcher rebuild app

```

I immediately get the same error again:

```plaintext
$ sudo ./launcher rebuild app
x86_64 arch detected.
docker: Error response from daemon: cgroups: cgroup mountpoint does not exist: unknown.
ERRO[0000] error waiting for container: context canceled
Your Docker installation is not working correctly

See: https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18?u=sam

```

I followed the steps in the [linked article](https://meta.discourse.org/t/docker-error-on-bootstrap/13657/18). They ran successfully.

Unfortunately when then doing

```ssh
sudo ./launcher rebuild app

```

again, the error occurs again.

* * *

### Update 1

One suggestion was to [install `cgroup-tools`](https://github.com/docker/for-linux/issues/219#issuecomment-1197780243):

```ssh
sudo apt update
sudo apt -y install cgroup-tools

```

([Source](https://installati.one/ubuntu/22.04/cgroup-tools/))

Unfortunately, this did _not_ work in my scenario, even after a reboot.

* * *

### Update 2

I’ve also [upgraded Docker from 19.x to 20.x](https://docs.docker.com/engine/install/ubuntu/).

Then, after a reboot, I tried this again:

```ssh
sudo ./launcher rebuild app

```

This time, it succeeds.

**🎉 My forum now works correctly again 🥳**

---

_[View the full topic](https://meta.discourse.org/t/error-after-upgrading-to-ubuntu-22-04-1-lts/236022)._