Afanasy on Ubuntu 20.04

[romanvolodin]

I've found out that render user group exists in Ubuntu 20.04 by default. So Afanasy can't create user render on installation.
Is there a way to fix this situation?
May be some workaround for Afanasy installation or may be I just can delete this user group? (No idea what this group is for.)
Any info would be helpful.

[timurhai]

Hi
Try to type this command:

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id render

What is the output?

[romanvolodin]

On fresh Ubuntu 20.04 installation (I'm using Virtualbox):

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$ id render
id: ‘render’: no such user
$ grep render /etc/group
render:x:109:

I've run the following command:

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$ sudo delgroup --system --only-if-empty render
Removing group `render' ...
Done.

Quote from delgroup man:

--system
Only delete if user/group is a system user/group. This avoids
accidentally deleting non-system users/groups. Additionally, if
the user does not exist, no error value is returned. This option
is mainly for use in Debian package maintainer scripts.

--only-if-empty
Only remove if no members are left.

And then Afanasy was successfully installed.

After Afanasy install:

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$ id render
uid=1001(render) gid=1001(render) groups=1001(render)
$ grep render /etc/group
render:x:1001:

[timurhai]

Just installed a fresh 20.04 on a virtual box too.
Hm, new group "render" appeared in 20.04 just after installation.
And i checked that there are no users in it.
So i do not know why it is needed. Most probably that it is not.

It is not breaks Afanasy installation, but it can't create a "render" user during installation.
So systemd scripts can launch afserver and afrender under render user that does not exist.

After installation, i just created "render" user by

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sudo useradd render -g render -m

to put it into existing group.
And after reboot, afserver and afrender was started by systemd.

I think i should check "render" group in the installation scripts, and use existing if it exists.

[timurhai]

This fixes the issue: (i checked on 20.04)
https://github.com/CGRU/cgru/commit/3bb ... d325800c57