perhaps an strace might help...the group I want to have as primary group is called DummyGroup here and is part of an active directory infrastructure. In 12.04 everything worked and I was able to change to that group.
** Attachment added: "stracenewgrp.log" https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1355111/+attachment/4183244/+files/stracenewgrp.log -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to shadow in Ubuntu. https://bugs.launchpad.net/bugs/1355111 Title: newgrp fails with "crypt: Invalid argument" Status in “shadow” package in Ubuntu: Confirmed Bug description: entry from /etc/passwd: user:x:1000:1000:User,,,:/home/user:/bin/bash entry from /etc/group: dummy:x:200:user entry from /etc/gshadow: dummy:*:: logged on as user the command "newgrp dummy" asks for a password and fails with "crypt: Invalid argument" after removing the line for dummy from gshadow newgrp works A similar bug was reported on the redhat tracker: https://bugzilla.redhat.com/show_bug.cgi?id=988184 cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1355111/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
