How to add user to system group - Revision history

Theleruby at 11:17, 15 February 2026

2026-02-15T11:17:10Z

← Older revision		Revision as of 11:17, 15 February 2026
Line 20:		Line 20:
	Verify you're now in the group		Verify you're now in the group
	groups ruby		groups ruby
	~~Should be working~~ :)		You should see that you are!
			ruby : ruby wheel docker

			Docker now works too!

Theleruby at 11:15, 15 February 2026

2026-02-15T11:15:04Z

← Older revision		Revision as of 11:15, 15 February 2026
Line 14:		Line 14:
	Now edit the normal group file:		Now edit the normal group file:
	sudo vim /etc/group		sudo vim /etc/group
	Add the line you copied, add ~~ruby~~ to the group while you're at it:		Add the line you copied, add yourself to the group while you're at it:
	docker:x:954:ruby		docker:x:954:ruby
	Now reboot		Now reboot

Theleruby at 11:14, 15 February 2026

2026-02-15T11:14:57Z

← Older revision		Revision as of 11:14, 15 February 2026
Line 10:		Line 10:
	To fix:		To fix:
	cat /usr/lib/group		cat /usr/lib/group
	~~Copy~~ the ~~docker~~ line, for example:		Find the line for the system group you want to add a user to, for example the docker group looks like this:
	docker:x:954:		docker:x:954:
	Now edit the normal group file:		Now edit the normal group file:
	sudo vim /etc/group		sudo vim /etc/group
	Add the ~~docker~~ line, add ruby to the group while you're at it:		Add the line you copied, add ruby to the group while you're at it:
	docker:x:954:ruby		docker:x:954:ruby
	Now reboot		Now reboot
	systemctl reboot		systemctl reboot
	Verify you're in the ~~docker~~ group		Verify you're now in the group
	groups ruby		groups ruby
	Should be working :)		Should be working :)

Theleruby at 11:14, 15 February 2026

2026-02-15T11:14:18Z

← Older revision		Revision as of 11:14, 15 February 2026
Line 10:		Line 10:
	To fix:		To fix:
	cat /usr/lib/group		cat /usr/lib/group
	Copy the docker line:		Copy the docker line, for example:
	docker:x:954:		docker:x:954:
	Now edit the normal group file:		Now edit the normal group file:

Theleruby at 11:14, 15 February 2026

2026-02-15T11:14:04Z

← Older revision		Revision as of 11:14, 15 February 2026
Line 10:		Line 10:
	To fix:		To fix:
	cat /usr/lib/group		cat /usr/lib/group
	Copy the docker line		Copy the docker line:
			docker:x:954:
			Now edit the normal group file:
	sudo vim /etc/group		sudo vim /etc/group
	Add the docker line, add ruby to the group while you're at it:		Add the docker line, add ruby to the group while you're at it:

Theleruby at 11:13, 15 February 2026

2026-02-15T11:13:36Z

← Older revision		Revision as of 11:13, 15 February 2026
Line 6:		Line 6:
	However this works by adding ruby to the list of users in the group, where the groups are defined in /etc/group		However this works by adding ruby to the list of users in the group, where the groups are defined in /etc/group

	In the Atomic Desktop based OS such as Fedora Silverblue/Kinoite the system groups are stored in /usr/lib/group and /etc/group ~~acts as an overlay~~. Trying to do the above usermod command fails because the docker group isn't in /etc/group so it can't be edited to add ruby.		In the Atomic Desktop based OS such as Fedora Silverblue/Kinoite the system groups are stored in /usr/lib/group and /etc/group file essentially provides additions and overrides to the system groups. Trying to do the above usermod command therefore fails, because the docker group isn't in /etc/group, so it can't be edited to add ruby.

	To fix:		To fix:

Theleruby: Created page with "The usermod command would normally be used to add a user to a group provided by the OS packages. e.g. adding ruby to docker: sudo usermod -aG docker ruby However this works by adding ruby to the list of users in the group, where the groups are defined in /etc/group In the Atomic Desktop based OS such as Fedora Silverblue/Kinoite the system groups are stored in /usr/lib/group and /etc/group acts as an overlay. Trying to do the above usermod command fails because the d..."

2026-02-15T11:12:34Z

Created page with "The usermod command would normally be used to add a user to a group provided by the OS packages. e.g. adding ruby to docker: sudo usermod -aG docker ruby However this works by adding ruby to the list of users in the group, where the groups are defined in /etc/group In the Atomic Desktop based OS such as Fedora Silverblue/Kinoite the system groups are stored in /usr/lib/group and /etc/group acts as an overlay. Trying to do the above usermod command fails because the d..."

New page

The usermod command would normally be used to add a user to a group provided by the OS packages.

e.g. adding ruby to docker:
sudo usermod -aG docker ruby

However this works by adding ruby to the list of users in the group, where the groups are defined in /etc/group

In the Atomic Desktop based OS such as Fedora Silverblue/Kinoite the system groups are stored in /usr/lib/group and /etc/group acts as an overlay. Trying to do the above usermod command fails because the docker group isn't in /etc/group so it can't be edited to add ruby.

To fix:
cat /usr/lib/group
Copy the docker line
sudo vim /etc/group
Add the docker line, add ruby to the group while you're at it:
docker:x:954:ruby
Now reboot
systemctl reboot
Verify you're in the docker group
groups ruby
Should be working :)