+++ This bug was initially created as a clone of Bug #1270529 +++
Description of problem:
Docker can't start containers that use supplemental groups but do not have an /etc/groups file in their filesystem.
The bug has been fixed in runc:
And there is a patch for the Red Hat docker:
Version-Release number of selected component (if applicable):
Create a busybox container and set supplemental groups on it:
docker run --group-add= -it busybox id -G
Container starts and prints '123'
--- Additional comment from Fedora Update System on 2015-10-15 09:36:46 CDT ---
docker-io-1.8.2-2.gitcb216be.fc21 has been submitted as an update to Fedora 21. https://bodhi.fedoraproject.org/updates/FEDORA-2015-891d60ea2b
# docker run --group-add=123 -it busybox id -G
0 10 123
move to verified
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.