distrobuilder: Broken ubuntu-core/16 image

Distribution: Ubuntu 19.10
The output of “lxc info” : https://pastebin.com/DP9yb1hM

Issue description

The current Ubuntu Core image appears to be broken. When the kernel snap (pc-kernel) refreshes, the next boot fails. However, if you can catch the refresh before it happens and abort the task, the containers continues to work fine (until the next refresh). This bug appears to be very similar to lxc/lxd#3924, which was closed two years ago.

Steps to reproduce

lxc launch images:ubuntu-core/16/amd64
The container will try to auto-refresh core and pc-kernel.
After pc-kernel refreshes, the container will not boot.

Please let me know if there’s a better place to report this bug. Thanks.

About this issue

Original URL
State: closed
Created 5 years ago
Comments: 17 (8 by maintainers)

Most upvoted comments

It runs distrobuilder (this project), the yaml used as input is present in the jenkins build as an artifact so you can pull it from there or you can find them in https://github.com/lxc/lxc-ci.

ubuntu-core is a very weird beast and a lot of the magic happens in our fake bootloader scripts, that’s likely what needs fixing to match whatever changed in the core or kernel snap.

Using lxc console NAME --show-log may give you some hints.

stgraber on Nov 5, 2019