From 3613eae1d971036ce91c6d31b822a129ba68e432 Mon Sep 17 00:00:00 2001
From: V33m <48420633+V33m@users.noreply.github.com>
Date: Sun, 26 Apr 2020 11:25:46 +0200
Subject: [PATCH] Fallback if lsb_release -si does not return Ubuntu, Debian or
 Raspbian

Adds a fallback if lsb_release -si returns anything else than Ubuntu, Debian or Raspbian.

Should solve https://github.com/arakasi72/rtinst/issues/495. Needs testing and confirmation.
---
 scripts/rtinst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/rtinst b/scripts/rtinst
index 958fbcf..1e828f2 100755
--- a/scripts/rtinst
+++ b/scripts/rtinst
@@ -202,8 +202,8 @@ fullrel=$(lsb_release -sd)
 osname=$(lsb_release -si)
 relno=$(lsb_release -sr | cut -d. -f1)
 
-# Fallback if lsb_release -si returns nothing
-if [ "$osname" = "" ]; then
+# Fallback if lsb_release -si returns anything else than Ubuntu, Debian or Raspbian
+if [ ! "$osname" = "ubuntu" ] && [ ! "$osname" = "debian" ] && [ ! "$osname" = "raspbian" ]; then
   osname=$(grep -oP '(?<=^ID=).+' /etc/os-release | tr -d '"')
   osname=${osname^}
 fi