Can't open /dev/null: Permission denied

[R-Sommer]

Booting from Grml 2022.11 and run

grml-live -A -b -c GRMLBASE,GRML_SMALL,AMD64 -e /grml-live/grml64-full_2022.11.iso -o /tmp -u

shows some permission denied errors:

...
Calling task_repository
fcopy: copied /etc/grml/fai/config/files/etc/hosts/GRMLBASE to /tmp/grml_chroot/etc/hosts
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
fcopy: copied /etc/grml/fai/config/files/etc/apt/sources.list.d/debian.list/DEBIAN_TESTING to /tmp/grml_chroot/etc/apt/sources.list.d/debian.list
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
fcopy: no matching file for any class for etc/apt/preferences.d/jessie-backports defined.
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Can't open /dev/null: Permission denied
Calling hook: updatebase.GRMLBASE
Action softupdate of FAI (hooks/updatebase.GRMLBASE) via grml-live running
Working around udev package bug, creating /etc/udev/kernel-upgrade
fcopy: destination etc/apt/sources.list.d/grml-live.list remains unchanged
fcopy: destination etc/apt/sources.list.d/debian.list remains unchanged
fcopy: destination etc/apt/sources.list remains unchanged
fcopy: destination etc/apt/sources.list.d/grml-testing.list remains unchanged
fcopy: destination etc/apt/apt.conf.d/20pdiffs remains unchanged
fcopy: destination etc/apt/trusted.gpg.d/grml-archive-keyring.gpg remains unchanged
fcopy: destination etc/apt/sources.list.d/grml-stable.list remains unchanged
fcopy: no matching file for any class for etc/apt/preferences.d/jessie-backports defined.
fcopy: destination etc/apt/preferences remains unchanged
fcopy: destination etc/apt/apt.conf.d/15grml-live remains unchanged
updatebase.GRMLBASE  OK.
...

I'm not sure this has an impact on the result since the created ISO behaves as expected (during some basic tests).

[mika]

Ah interesting, this might be related tp the new "sandbox/namespacing" behavior that FAI recently introduced.

Thanks for reporting, @R-Sommer!

[mika]

Now with https://github.com/grml/grml-live/pull/281 we redesigned this and while some permission issues still might be visible, the main issue should be gone. If not, please let us know!