On 29 Nov 2023, at 22:45, Martin Wege wrote:

?

On Fri, Nov 24, 2023 at 9:57 AM Martin Wege [off-list ref] wrote:

quoted

Hello,

We get a umount.nfs: /mnt: block devices not permitted on fs in a snap
container on Ubuntu.

Can anyone explain what is going wrong?

Something in umount is calling umount_error() with -EACCES.  I admit that
error message makes no sense, it seems to be cruft.

Maybe you can run the umount in gdb with a breakpoint on umount_error() and
send along the stack.

Ben