unblocking a blocked Mac
On an iBook with OS 10.4.11 I had accessed the system at root level for an installation of OS 9, which worked. Then after doing that I opened the Information Box of Macintosh HD for reverting the rights back to normal, and by accident I blocked myself out by denying myself the admin rights. Now the Mac starts up but stops with a blank blue screen, and nothing is accessible. – Is there any reasonable way back to normal ?
iBook