Thank you for the info on updating to 10.6.8. I used your method to update top 10.6.8 and everything went smoothly . . . UNTIL I edited my com.apple.boot.plist!
When I restarted, the boot stuck on a grey screen (after the Apple log + spinning wheel end, I get a blank grey screen.)
Problem: After editing my com.apple.boot.plist file, it caused the computer to not boot, and get stuck at a grey screen (not Apple logo nor spinning wheel)
Need: To edit the culprit file (com.apple.boot.plist back to its original form) without being able to log into the desktop.
Solution: You can edit files from the pre-boot terminal as follows:
- tap shift at start-up to get to the chameleon bootloader
- type "-s" to enter single-user mode
- type "mount -uw" to mount the hard drive as read/writable
- type "cd /extra" the file I wanted to edit was in the "extra" folder
- type "nano [file name]" in my case "nano com.apple.boot.plist" This allows you to edit the file.
- edit the file however you need
- follow directions to Exit, Save,
- type "exit" to boot.