Doesn't work on Rocky Linux 8 or CentOS 7

[garyo]

I get this error: Error: Unable to locate executable file: lsb_release when it's trying to do this:

/usr/bin/docker exec  e293caa31043d6a32d7423f647ae3185b4671dc6abaf24070a41bf7a4e0c77cb sh -c "cat /etc/*release | grep ^ID"

Maybe check for /etc/os-release and if it exists, source it to get its variables instead there?

[Jimver]

Which method are you using for installation? The network method is only supported on ubuntu. The local method should work though as I don't use lsb_release there.