Hello Marco, On Mon, 2022-10-03 at 16:09 +0200, Marco d'Itri wrote: > On Oct 03, Ritesh Raj Sarraf <r...@debian.org> wrote: > > > Now, going forward, I can manually fix it by mounting to > > /usr/lib/modules and arranging the symlink to the old location in > > the > > guest, something that usrmerge is trying to do. > Actually I think that it is much easier: > - unmount /usr/lib/modules > - complete the installation of usrmerge > - reboot > > Can you confirm that after doing this everything will work as > expected? >
There was nothing mounted onto /usr/lib/modules before. Instead, all this time it was mounted on /lib/modules/ just like on the host. I think it failed because usrmerge script was invoking mv command while /lib/modules was independently mounted 'read-only' After facing this error, I switched the fstab to /usr/lib/modules and rebooted. I first rebooted because unmounting /lib/modules was not possible as it was held by the linux process. After the reboot, re-running the usrmerge script worked proper. > What is the canonical way to detect UML? systemd does it nicely with: root@uml:~# systemd-detect-virt uml root@uml:~# > I am not sure if we want to unmount/remount stuff, but at least (and > at > least as a first step) the conversion program can bail out gracefully > and explain what to do. Yes. Some careful instructions targeting novice users. I was able to quickly work it out but something simple for general users would be nice. -- Ritesh Raj Sarraf | http://people.debian.org/~rrs Debian - The Universal Operating System
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