--podman: invert check for userns_clone #255

x11docker

@@ -6476,17 +6476,20 @@ check_host() {                  # check host environment
       case $Network in
         host) Hostip="127.0.0.1" ;;
         *)
-                           Hostip="$(ip -4 -o a | grep 'docker0' | awk '{print $4}' | cut -d/ -f1 | grep 172.17.0.1 ||: )"
+          #Hostip="$(hostname -I | cut -d' ' -f1)"
+          [ "$Hostip" ] || Hostip="$(ip -4 -o a | grep 'docker0' | awk '{print $4}' | cut -d/ -f1 | grep    "172.17.0.1" ||: )"
           #[ "$Hostip" ] || Hostip="$($Dockerexe network inspect bridge --format='{{.IPAM.Config}}' 2>/dev/null | awk '{print $2}')"
           [ "$Hostip" ] || Hostip="$(ip -4 -o a | grep 'docker0' | awk '{print $4}' | cut -d/ -f1 | head -n1)"
-          [ "$Hostip" ] || Hostip="$(ip -4 -o a |                  awk '{print $4}' | cut -d/ -f1 | grep -v 127.0.0.1 | head -n1)" 
+          [ "$Hostip" ] || Hostip="$(ip -4 -o a |                  awk '{print $4}' | cut -d/ -f1 | grep    "^192\.168\.*" | head -n1)" 
+          [ "$Hostip" ] || Hostip="$(ip -4 -o a |                  awk '{print $4}' | cut -d/ -f1 | grep -v "127.0.0.1" | head -n1)" 
         ;;
       esac
     ;;
     *) 
-                       Hostip="$(ipconfig.exe | rmcr | grep -A6 'DockerNAT' | grep 'IPv4' | rev | cut -d' ' -f1 | rev)"
-      [ "$Hostip" ] || Hostip="$(ipconfig.exe | rmcr | grep 'IPv4'          | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*' | grep "^10\.0\.*" ||: )"
-      [ "$Hostip" ] || Hostip="$(ipconfig.exe | rmcr | grep 'IPv4'          | head -n1 | rev | cut -d' ' -f1 | rev)" 
+                       Hostip="$(ipconfig.exe | rmcr | grep -A6 'DockerNAT' | grep 'IPv4' | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*')"
+      [ "$Hostip" ] || Hostip="$(ipconfig.exe | rmcr                        | grep 'IPv4' | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*' | grep "^192\.168\.*" | head -n1 )"
+      [ "$Hostip" ] || Hostip="$(ipconfig.exe | rmcr                        | grep 'IPv4' | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*' | grep "^10\.0\.*"    | head -n1 )"
+      [ "$Hostip" ] || Hostip="$(ipconfig.exe | rmcr                        | grep 'IPv4' | grep -o '[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*'                       | head -n1 )" 
     ;;
   esac
 
@@ -7318,7 +7321,9 @@ check_option_interferences() {  # check multiple option interferences, change se
 
   case "$Podman" in
     yes)
-      [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" = "1" ] || error "Option --podman: Linux kernel disallows unprivileged 
+      # /proc/sys/kernel/unprivileged_userns_clone might exist on debian only.
+      # https://github.com/mviereck/x11docker/issues/255#issuecomment-758014962
+      [ "$(cat /proc/sys/kernel/unprivileged_userns_clone)" = "0" ] && error "Option --podman: Linux kernel disallows unprivileged 
   user namespace setup. Please run as root:
     sysctl -w kernel.unprivileged_userns_clone=1"
       store_runoption cap "CHOWN"