I have an instance of discourse running on ubuntu. I have not logged into the system in a while and it required an upgrade with do-release-upgrade. This seems to run fine, but after reboot discourse did not work and doing a systemct restart docker journalctl revealed Nov 07 16:53:58 discourse systemd[1]: docker.service: Scheduled restart job, restart counter is at 2. Nov 07 16:53:58 discourse systemd[1]: Starting docker.service - Docker Application Container Engine... Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.855938951-05:00" level=info msg="systemd-resolved is running, so using resolvconf: /run/systemd/resolve/resolv.conf" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.858965305-05:00" level=info msg="parsed scheme: \"unix\"" module=grpc Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.859013907-05:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.859094653-05:00" level=info msg="parsed scheme: \"unix\"" module=grpc Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.859114038-05:00" level=info msg="scheme \"unix\" not registered, fallback to default scheme" module=grpc Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.864502036-05:00" level=info msg="[graphdriver] using prior storage driver: overlay2" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871019185-05:00" level=info msg="Graph migration to content-addressability took 0.00 seconds" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871656775-05:00" level=warning msg="Your kernel does not support cgroup memory limit" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871680667-05:00" level=warning msg="Unable to find cpu cgroup in mounts" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871693302-05:00" level=warning msg="Unable to find blkio cgroup in mounts" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871704545-05:00" level=warning msg="Unable to find cpuset cgroup in mounts" Nov 07 16:53:58 discourse dockerd[1566]: time="2024-11-07T16:53:58.871760062-05:00" level=warning msg="mountpoint for pids not found" Nov 07 16:53:58 discourse dockerd[1566]: Error starting daemon: Devices cgroup isn't mounted root@discourse:/var/discourse# uname -r 6.8.0-48-generic root@discourse:/var/discourse# cat /etc/os-release PRETTY_NAME="Ubuntu 24.04.1 LTS" NAME="Ubuntu" VERSION_ID="24.04" VERSION="24.04.1 LTS (Noble Numbat)" VERSION_CODENAME=noble ID=ubuntu ID_LIKE=debian HOME_URL="https://www.ubuntu.com/" SUPPORT_URL="https://help.ubuntu.com/" BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/" PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy" UBUNTU_CODENAME=noble LOGO=ubuntu-logo rebuild is what got me to realise all the above root@discourse:~# cd /var/discourse root@discourse:/var/discourse# ./launcher rebuild app Device "docker0" does not exist. Cannot connect to the docker daemon - verify it is running and you have access IS this really a problem with the kernel? I am not sure how to proceed, and of course when I type do-release-upgrade I did not do a backup of the discouse DB which I posted some recent important notes I would like to get back :face_with_peeking_eye:

Have you already rebuilt the app?

@omarfilip sorry, initially forgot to add that. This was what got me looking into why docker wasn’t running from the start root@discourse:~# cd /var/discourse root@discourse:/var/discourse# ./launcher rebuild app Device "docker0" does not exist. Cannot connect to the docker daemon - verify it is running and you have access

See if this gives you any ideas: [imagem] Device "docker0" does not exist Self-hosting I just tried to install discourse on my dedicated ubuntu server. I followed this tutorial: discourse/docs/INSTALL-cloud.md at main · discourse/discourse · GitHub of course I do not have a cloud or anything, but my server. I guess it should work anyways. I am using the terminal of my mac. Here is the problem. After typing in: ./launcher bootstrap app I get an error: Device "docker0" does not exist. Cannot connect to the docker daemon - verify it is running and you have access What can I do?…

[imagem] Guy St Louis: it required an upgrade with do-release-upgrade. It didn’t require that you do a do-release-upgrade, it recommended it. [imagem] Guy St Louis: Device "docker0" does not exist. As suggested, docker is broken. You should fix it. One way, that might work, but might not, is curl https://get.docker.com | sh You’ll get some warnings, but I’ve used it recently. Then you can see if this succeeds: docker run hello-world

Atualização do Ubuntu VM de 22 para 24 mantendo discourse docker

Suporte ao Produto

omarfilip Novembro 7, 2024, 11:04pm 4

Veja se isso lhe dá alguma ideia:

Tópico		Respostas	Visualizações
Error after upgrading to Ubuntu 22.04.1 LTS Self-hosting docker	7	3661	14 de Agosto de 2022
End of Life for Ubuntu 14.04 Trusty and Discourse 1.9.0.beta10? Self-hosting	6	2026	23 de Outubro de 2017
Kernel 1028 (linux-aws. linux-gcp and linux-azure) breaks docker and therefore Discourse installs Product Support	2	650	10 de Junho de 2022
Upgrade fail unsupported Docker Version Self-hosting docker	9	648	18 de Maio de 2025
Determining whether my VPS needs any upgrades (generally) Product Support	20	1083	10 de Março de 2025

Atualização do Ubuntu VM de 22 para 24 mantendo discourse docker

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