Uid Toolbox Fedora 31

Project Discussion
1

Hi all.
I’m trying to create a container with Toolbox in Fedora 31 Silverblue. But… It doesn’t work:

$ toolbox -v create
toolbox: running as real user ID 1000
toolbox: resolved absolute path for /usr/bin/toolbox to /usr/bin/toolbox
toolbox: checking if /etc/subgid and /etc/subuid have entries for user
toolbox: /etc/subgid and /etc/subuid don’t have entries for user
See the podman(1), subgid(5), subuid(5) and usermod(8) manuals for more
information.

Any idea how to fix it?

Thanks!!

2

You need to add entries into subuid and subgid files…

Assuming /etc/subuid and /etc/subgid are empty then something like this will help (substitute fred for your user name)…

sudo sh -c 'echo "fred:100000:65536" >> /etc/subuid'
sudo sh -c 'echo "fred:100000:65536" >> /etc/subgid'

If you do have entries in the file then you will need to adjust the 100000 value so that they do not overlap.

3

Since my system once threw me out of the session to the login screen, I’ve had this problem too.

toolbox -v 
DEBU Running as real user ID 1000                 
DEBU Resolved absolute path to the executable as /usr/bin/toolbox 
DEBU Running on a cgroups v2 host                 
DEBU Looking up sub-GID and sub-UID ranges for user tealk 
DEBU Looking up sub-GID and sub-UID ranges failed: cannot dlopen(3) libsubid.so.5.0.0 
Error: Missing subgid and/or subuid ranges for user tealk
See the podman(1), subgid(5), subuid(5) and usermod(8) manuals for more
information.

cat /etc/subuid
tealk:524288:65536

cat /etc/subgid
tealk:524288:65536