Add support for bullseye

install.sh

@@ -16,6 +16,10 @@ if id -u sympl > /dev/null 2>&1 ; then noninteractive=1; fi
 
 while [ $# -gt 0 ]; do
   case $1 in
+    --unstable)
+      version="$codename-unstable"
+      shift
+    ;;
     --testing)
       version="$codename-testing"
       shift
@@ -45,10 +49,10 @@ echo "This script will help you install Sympl on a Debian Linux or Raspberry"
 echo "  Pi OS server with minimal hassle, and give you some intial pointers."
 echo
 
-if [ $( grep -c '^stretch$\|^buster$' <<< $codename ) == 0 ]; then
+if [ $( grep -c '^stretch$\|^buster$\|^bullseye$' <<< $codename ) == 0 ]; then
   echo "ERROR: Sorry, this script doesn't recognise your Debian version."
   echo "  You may need to install lsb_release, or check your version."
-  echo "  Expected 'stretch' or 'buster' but got '$codename'."
+  echo "  Expected 'stretch', 'buster' or 'bullseye' but got '$codename'."
   exit 1
 fi
 
@@ -173,4 +177,4 @@ echo "Important new-user information is available at any time by running:
 Check these URLs for other information:
     http://wiki.sympl.host for documentation and guides.
     http://forum.sympl.host for support and assistance.
-    "
\ No newline at end of file
+    "