Computer can't find OSX partition |
May, 04, 2003 2:08 PM |
jebates |
OSX partition not recognized May, 04, 2003 2:07 PM jebates . I have an 8600 w/Sonnet G4/450 mhz upgrade. 460 mb ram. 4 gig SCSI drive (original) and 20 gig SCSI drive. I originally installed OSX on a 3.3 gig partition of the 4 gig drive with 9.2.2 on the remaining .7 gig partition for Classic. I retained 9.1 on the 20 gig drive. I used ver. 2.2b15 of XPostFacto. Everything worked fine from December 2002 until today (May 4) when I rebooted into 9.1 to use an older version of Virtual PC. VPC eventually froze the computer and I had to force a restart. When it came back up in 9.1, I could no longer see the OSX partition and the XPostFacto control panel doesn't show OSX either as a choice to restart, although it does show 9.1 and 9.2. Norton Utilities in 9.1 shows the OSX partition in diagnostic mode, but of course wouldn't be able to fix anything. Control panels that mount volumes (Mt. Everything, SCSI Probe) can tell there is a volume there but can't mount it. I made a disk image of the entire OSX volume last week with Carbon Copy Cloner and it's stored on the desktop of 9.1, but the old versions of Software restore don't see it as the file format is an OSX format. Before I wipe the old partition and start again. Any suggestions????? |
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RE: Computer can't find OSX partition |
May, 05, 2003 1:06 PM |
OSXGuru |
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The extensions on the 9.2.2 volume won't do any harm, but you can remove them anyway. They should be in a folder called "private" at the root level of the drive. |
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RE: Computer can't find OSX partition Success!! |
May, 05, 2003 12:24 PM |
jebates |
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Some emails were exchanged off list and the result is below... May, 05, 2003 9:17 AM jebates . Can I use Disk First Aid from OS9.1 or 9.2.2 to try to restore the OS10.2.4 partition? The partition doesn't show up on the desktop but does show in DFA for 9.1. It also shows in Norton Utilities for 9.1. I was afraid to try to use either of these methods to recover a partition that held OSX for fear that they would destroy the directory structure and other things when they tried to do a repair. When I launch OS9.2 of 9.1 it tells me that the OSX partition is unreadable and offers to initialize it. At least it recognizes that there is a partition there, but I can't get XPostFacto to show it in the popup menu. How do I get XPF to write to it if it doesn't acknowledge that the partition is there? Ryan replies: XPF won't be able to write to the partition until you can mount it. Using the Disk First Aid from 9.2 should be fine--it may be able to solve the problem. Also, recent versions of Norton Utilities ought to be able to understand Mac OS X disk structures--you could check their web site to make sure your version is OK with a Mac OS X partition. Another thing I have used with some success in situations like this is DIskWarrior. The other option is to boot into the Mac OS X install CD and use the Mac OS X Disk Utility to try the repair. I wrote up some instructions for that in the tech forum. Joe takes some of Ryan's advice and the result is... Success!!! Yahoo!!! I started to repair with DFA from 9.2.2 but after verifying, I felt strange about letting it try to repair an OSX Volume. I used XPF to install the kernel extensions on the 9.2.2 volume (since it couldn't see the OSX volume) and then ran the OS10.2 install disk to get to the OSX disk utility. OSX FDA saw the OSX volume and successfully repaired it. Then, I quit the install disk and restarted in 9.1. Using XPF 2.25 in 9.1, I reinstalled the extensions on the OSX volume and the used XPF to restart in OSX (it now saw the volume). So far, everything appears to be complete on OSX volume. Thanks for the help! You are truly a guru! Do I need to search out and remove the extensions from the 9.2.2 volume? Joe |
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RE: Computer can't find OSX partition |
May, 05, 2003 9:17 AM |
jebates |
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Can I use Disk First Aid from OS9.1 or 9.2.2 to try to restore the OS10.2.4 partition? The partition doesn't show up on the desktop but does show in DFA for 9.1. It also shows in Norton Utilities for 9.1. I was afraid to try to use either of these methods to recover a partition that held OSX for fear that they would destroy the directory structure and other things when they tried to do a repair. When I launch OS9.2 of 9.1 it tells me that the OSX partition is unreadable and offers to initialize it. At least it recognizes that there is a partition there, but I can't get XPostFacto to show it in the popup menu. How do I get XPF to write to it if it doesn't acknowledge that the partition is there? |
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RE: Computer can't find OSX partition |
May, 04, 2003 8:09 PM |
OSXGuru |
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There are a couple of things you could try. You could try Disk First Aid to see if it can get the partition back. Or you could try DiskWarrior. For that matter, it isn't out of the question that Norton Utilities might be able to fix it. Alternatively, you could try using the Mac OS X Disk Utility to repair the disk. Basically, this would involve "pretending" to do an install (i.e. use XPostFacto the way that you would if you were installing to one of your remaining drives). Then, when you get to the Installer, there should be a menu command that allows you to launch the Disk Utility. And at that point, you should be able to repair the partition (hopefully). And then you can cancel the install and reboot (with the option-key down to get back to Mac OS 9). Or, if you really know what you're doing, you can accomplish this by booting into single-user mode and using the command line. |
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