selinux-activate not working on RaspbianOS bullseye (version 11)

[waschaly]

currently the command selinux-activate looks - if you want to activate SELinux - for two files
either for
GRUB_CONF=/boot/grub/menu.lst
If $GRUB_CONF exists adding the line 'security=selinux' and do an update-grub

if $GRUB_CONF doesn't exist look for
GRUB2_CONF=/etc/default/grub
and add selinux=1 and security=selinux

Unfortunately none of the GRUB Files exist an RasopbianOS bullyeye

[cgzones]

The script selinux-activate is not part of upstream SELinux userland, but part of the Debian package selinux-basics (see https://packages.debian.org/sid/all/selinux-basics/filelist).

I proposed an improved feedback awhile ago (https://salsa.debian.org/selinux-team/selinux-basics/-/merge_requests/1/diffs?commit_id=7f945c4ef9024436df7a65a89da27e7ddd8689e9).

Beyond that you'd have to activate SELinux yourself or propose a patch to handle Raspberry Pi OS.