Nicer shell prompt in the break/emergency shell

init

@@ -93,7 +93,7 @@ fi
 
 if [ "${break}" = "y" ]; then
     echo ":: Break requested, type 'exit' to resume operation"
-    PS1="ramfs$ " /bin/sh -i
+    launch_interactive_shell
 fi
 
 if [ -f "/message" ]; then
@@ -145,7 +145,7 @@ if [ -z "${nfsroot}" -a "${root}" != "/dev/nfs" ]; then
       echo "You are being dropped to a recovery shell"
       echo "    Type 'reboot' to reboot"
       echo "    Type 'exit' to try and continue booting"
-      PS1="ramfs$ " /bin/sh -i
+      launch_interactive_shell
       msg "Trying to continue (this will most likely fail) ..."
     fi
   fi

init_functions

@@ -21,3 +21,7 @@ poll_device() {
     done
     [ -b "${device}" -o -h "${device}" ]
 }
+
+launch_interactive_shell() {
+    PS1='[ramfs \W]\$  ' /bin/sh -i
+}