Hi Bernd, Thanks for your report.
On 21-06-2021 18:04, Bernd Breuer wrote: > after the recent upgrade to Buster 10.10 (including a kernel upgrade) the > command 'lxc-attach' (out of the Linux Container (lxc) set of commands), > typed in like > > "sudo lxc-attach <container-name>" > > stopped working with the error message > > "lxc-attach: <container-name>: lsm/lsm.c: lsm_process_label_set_at: 174 > Operation not permitted - Failed to set AppArmor label "unconfined" > > The conainer itself is starting, but apparmor related config lines like > > "lxc.apparmor.profile = unconfined" > > produce the above mentioned error, also on another machine after the > same packages upgrade. > > I expect lxc-attach to provide me a root shell in the running lxc-container > like it was the case before the recent upgrade. As we didn't upgrade lxc during the point release, this *may* be caused by the updated Linux kernel. What happens if you reboot using the previous kernel? Paul
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