--- usr/share/google/first-boot.orig	2014-12-24 22:40:30 UTC
+++ usr/share/google/first-boot
@@ -31,7 +31,7 @@ function log() {
 
 function get_instance_id() {
   # Do not retry to get the metadata value on failures.
-  MDS_TRIES=1 ${PREFIX}/usr/share/google/get_metadata_value id 2>/dev/null
+  MDS_TRIES=1 ${PREFIX}%%PREFIX%%/share/google/get_metadata_value id 2>/dev/null
 }
 
 # Output the instance id.
@@ -80,8 +80,8 @@ log "Running first-boot"
 declare -r INSTANCE_ID=$(cat ${INSTANCE_FILE})
 
 # Regenerate host keys for ssh.
-if [[ -x ${PREFIX}/usr/share/google/regenerate-host-keys ]]; then
-  ${PREFIX}/usr/share/google/regenerate-host-keys
+if [[ -x ${PREFIX}%%PREFIX%%/share/google/regenerate-host-keys ]]; then
+  ${PREFIX}%%PREFIX%%/share/google/regenerate-host-keys
 fi
 
 # Make a per-instance data directory.