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Install 10.3 after using ext3-formatted Yellow Dog Linux
Authored by: johnsawyercjs on Feb 29, '04 05:46:11PM

I've increasingly been finding that the 'zero all data' option fixes a variety of hard drive problems that no diagnostic utility can either fix, or can even detect. Choosing to simply initialize a drive doesn't erase all the blocks on the drive--it just removes all file entries from the directory tracks, and does nothing to actually repair any messed-up blocks that the Mac OS reads as part of its process of interacting with the drive, including the directory tracks, but also including the boot blocks, etc. These blocks can have wrong data, etc., and zeroing all data is the only process that actually erases them (and all the other blocks on the drive) and resets them to a condition that Apple is happy with. How these blocks get bad in this way, I don't yet know--possibly the result of crashes, buggy software, etc.--the usual. Blocks that are bad like this won't be detected by utilities that scan for bad blocks, since these utilities just look for blocks that are so messed up that they can't be read at all--these utilities can't know whether the data stored in those blocks is correct or not, they only detect scrambled "header/footer" identifiers that bracket the data in each block, or blocks that sit on a location on the disk where there's actual physical damage. Another possible thing that zeroing all data may fix, is blocks that are "weak" magnetically, though this is just my theory.

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Install 10.3 after using ext3-formatted Yellow Dog Linux
Authored by: le fromager on Jul 25, '04 03:37:10AM
I had this problem too. With Mandrake. This problem can be fixed with MountX, a system extension for OS 9 that enables you to mount the Linux ext2 partition, and then format it. Now the problem is where to find it. It seems that the file was hosted here:
and here:
but it's not there anymore. If you find it, please tell me. Another way is a Preference Pane for OS X that mounts the ext2 partition too. It's called Ext2 Filesystem. It can be found at! I've not tested it yet, but Version Tracker says that it works.. Good Luck!

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