I have automatic updates on my discourse server and after patching this week discourse broke on my EC2 instance. I traced the error to a known bug in the 1028 kernel package. The bug report is here
Bug #1977919 “Docker container creation causes kernel oops on li...” : Bugs : linux-aws-5.13 package : Ubuntu along with instructions on how to recover.
in short you will have a boot loop due to a kernel panic, but there is a couple of seconds when you can log in and kill the docker service. Either upgrade to the 1029 kernel build or downgrade to 1025 and then renable docker and discourse will come back
I believe there’s a topic on this already:
I ran into this issue last night, when my Ubuntu 20.04 LTS automatically upgraded itself, it installed a new kernel and I lost control of the system, it would just crash a few minutes after booting. I tried it again today with a fresh Discourse install and as soon as I upgraded the system it started crashing again.
Just a note for folks, don’t update your linux kernels just yet, this is a known bug - see this for more details.
Would you like me to slide your post across, or just close this topic in favour of the other?
@JammyDodger my apologies - I did a quick look at latest topics and obviously missed that. Let’s kill this topic