Dear Maintainer, the previously reported p roblem is quite probable due to fact that the setup instruction on groupmems hadn't be performs.
This was done meanwhile. But groupmem still does not work, see console logs # system configuration root@lune:/etc# grep tester2 group [?2004l tester2:x:1001: groups:x:998:tester2 [?2004hroot@lune:/etc# grep tester2 gshadow [?2004l tester2:$6$7Y4UXOMu5WCPrn$DhOnnmrdihmp5g9AytktPyuF.kvAsMgL38Syx26tgBEcHF7xUyusX0T92wJYXa1TuRiZFul6VYdLJrG85yJWF/:: groups:!::tester2 [?2004hroot@lune:/etc# grep groups group [?2004l groups:x:998:tester2 [?2004hroot@lune:/etc# grep groups gshadow [?2004l groups:!::tester2 [?2004hroot@lune:/etc# ls -l /usr/sbin/groupmems [?2004l -rwx--s--- 1 root groups 66104 7. Feb 2020 /usr/sbin/groupmems # trial to use groupmems [?2004htester2@lune:~$ /usr/sbin/groupmems -l [?2004l bash: /usr/sbin/groupmems: Keine Berechtigung [?2004htester2@lune:~$ /usr/sbin/groupmems -l[Ka tester1 tester2 [?2004l bash: /usr/sbin/groupmems: Keine Berechtigung
