Modern Gentoo distro adaptation
Otherwise:
File "..../cerbero/cerbero/utils/__init__.py", line 333, in system_info
raise FatalError("Distribution '%s' not supported" % str(d))
cerbero.errors.FatalError: Fatal Error: Distribution '('Gentoo', '2.9', 'n/a')' not supported
On my distribution:
$ cat /etc/gentoo-release Gentoo Base System release 2.9
$ cat /etc/os-release NAME=Gentoo ID=gentoo PRETTY_NAME="Gentoo Linux" ANSI_COLOR="1;32" HOME_URL="https://www.gentoo.org/" SUPPORT_URL="https://www.gentoo.org/support/" BUG_REPORT_URL="https://bugs.gentoo.org/" VERSION_ID="2.9"