resources: Use new readfile device in after_boot.sh

Author: nkrim

src/x86-ubuntu/files/after_boot.sh

@@ -28,13 +28,13 @@ fi
 printf "Interactive mode: $interactive\n"
 
 if [[ $interactive == true ]]; then
-    printf "Interactive mode enabled, dropping to shell."
+    printf "Interactive mode enabled, dropping to shell.\n"
     /bin/bash
 else
     # Try to read the file from the host when running with gem5
     if ! [ -z $IGNORE_M5 ]; then
         printf "Starting gem5 init... trying to read run script file via readfile.\n"
-        if ! gem5-bridge readfile > /tmp/script; then
+        if ! cat /dev/gem5/readfile > /tmp/script; then
             printf "Failed to run gem5-bridge readfile, exiting!\n"
             rm -f /tmp/script
             # If we can't read the script exit the simulation. If we cannot exit the