Mac OS X 10.10 (Yosemite) - Mac Pro 1.1 - Repair recovery partition automatized

Heyyo Dudes,
i automized a script to repair the recovery partition
- done it several times on a mac pro 1,1
- so i had no lust to do it over and over again after every update per hand.
can someone try the script out to confirm that it works well?
the only thing what made me concerns are the permissions.
maybe somone can proof them before and after execution.

Warning:
Please proof with 'diskutil list' if the script is executed on the right partition.

#!/bin/bash

sudo su

diskutil mount /dev/disk0s3

cd /Volumes/Recovery\ HD/com.apple.recovery.boot/

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DC8'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DA9'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro1,1'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro2,1'" PlatformSupport.plist

hdiutil convert BaseSystem.dmg -format UDRW -o ~/Downloads/BaseSystemUDRW.dmg

cd ~/Downloads

chmod 777 BaseSystemUDRW.dmg

hdiutil attach -readwrite BaseSystemUDRW.dmg

# Piker-Alpha_bootloader_-_black_-_build_3b402a9

curl -o piker.zip 'http://forums.macrumors.com/attachments/boot-black-zip.511172/'

unzip piker.zip

chmod 644 boot.efi

cd /Volumes/OS\ X\ Base\ System/

rm -rf /System/Library/CoreServices/boot.efi

rm -rf /usr/standalone/i386/boot.efi

cp ~/Downloads/boot.efi /System/Library/CoreServices/

cp ~/Downloads/boot.efi /usr/standalone/i386/

cd /Volumes/OS\ X\ Base\ System/System/Library/CoreServices/

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DC8'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DA9'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro1,1'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro2,1'" PlatformSupport.plist

cd /Volumes/OS\ X\ Base\ System/System/Library/CoreServices/com.apple.recovery.boot/

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DC8'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedBoardIds: string 'Mac-F4208DA9'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro1,1'" PlatformSupport.plist

/usr/libexec/PlistBuddy -c "Add :SupportedModelProperties: string 'MacPro2,1'" PlatformSupport.plist

hdiutil convert ~/Downloads/BaseSystemUDZW.dmg -format UDZO -imagekey zlib-level=9 -o BaseSystem.dmg

cd /Volumes/Recovery\ HD/com.apple.recovery.boot/

rm -rf boot.efi

rm -rf BaseSystem.dmg

cp ~/Downloads/boot.efi /

cp ~/Downloads/BaseSystem.dmg /

chflags uchg boot.efi

add execution permission in terminal to the script:
chmod +x repairrecovery.command
Execute it with doubleclick.

macrumors.com