MacOSX - seatbelt kernel panic

http://www.infinitemac.com/f5/updated-08-09-dmg-mounting-issues-seatbelt-kext-t1992/

If you have the 9.5.0 kernel you will need the Seatbelt.kext from 10.5.5
If you have the 9.6.0 kernel you will need the Seatbelt.kext from 10.5.6
If you have the 9.7.0 kernel you will need the Seatbelt.kext from 10.5.7
If you have the 9.8.0 kernel you will need the Seatbelt.kext from 10.5.8

sudo -s
mkdir /backup/Seatbelt
cd /System/Library
cp -r Extensions/seatbelt.kext /backup/Seatbelt/seatbelt.kext
cp -r ~/Desktop/seatbelt.kext Extensions/seatbelt.kext
chmod -R 755 Extensions/
chown -R root:wheel Extensions/
touch Extensions/
rm -Rf Extensions.mkext
diskutil repairpermissions /