[gbhgbh]

I'm trying to repair a filesystem that has been corrupted. It happened by shutting off the power without going through the software shutdown procedure. I'm now not able to boot up the system.

Here's what I have and what's happening. I'm running MacOS 10.3 on a Powerbook Lombard. When I boot (in verbose mode), it gets to where it's Mounting Local Filesystems. At this point it displays an error message "disk0s10: 0x8 (UNDEFINED)."

It keeps repeating this message and does not go any further. I've tried booting from the 10.2 installation disk and opening the Disk Utility App to repair the partition. When I do this, it displays the message 'Overlapped extent allocation (file 540276d)' about 20 times, then displays 'Invalid key length', and ends with 'Repair completed'. However this seems to have had no affect, the hard disk still will not boot.

I have another operating system, MacOS 10.2.8, installed on a different partition on the disk. Is there a way to get the machine to boot into this? Will booting from that then running 'fsck -f' solve the problem? Is there some other command I should run instead?

Also, is there a rescue boot CD image that I can download from somewhere to fix the problem? Is it possible to burn this image on a Windows machine so that it's bootable on a Mac?
--
Greg

[dtriska]

You want DiskWarrior. Disk Utility won't fix the problems.

To boot from your 10.2.8 partition, hold the option key while you start up. It'll take a while, but eventually a screen with all of the available boot volumes will appear. You can select the 10.2.8 partition and boot from it.