Comment 8 for bug 1934775

On Tue, Jul 13, 2021 at 11:01 AM Michael Hudson-Doyle <
<email address hidden>> wrote:

> huh. does modprobe fuse make the mount happen?
>

Just answered to that before seeing this comment :D

>
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> report.
> https://bugs.launchpad.net/bugs/1934775
>
> Title:
> Installer crash when trying to unmount target
>
> Status in subiquity:
> New
>
> Bug description:
> Installing has crashed in the latest stages of the installation,
> apparently due to not being able to unmount /target/sys. The error I
> see in the log is:
>
> Running command ['umount', '/target/sys/firmware/efi/efivars'] with
> allowed return codes [0] (capture=False)
> Running command ['umount', '/target/sys'] with allowed return codes [0]
> (capture=False)
> umount: /target/sys: target is busy.
>
> Mount shows that there is something else still mounted in target/sys:
>
> sysfs on /target/sys type sysfs (rw,nosuid,nodev,noexec,relatime)
> fusectl on /target/sys/fs/fuse/connections type fusectl
> (rw,nosuid,nodev,noexec,relatime)
>
> This fails:
> # umount /target/sys
> But this is successful:
> # umount /target/sys/fs/fuse/connections
> # umount /target/sys
>
> See attached file with the crash. This happens with the revision in
> edge for arm64:
>
> edge arm64 21.06.01+git14.aa0dfb01 2543
> 2021-07-02T04:58:24.297995+00:00
>
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