I reformatted a hard disk from FAT to UNIX File System in Disk Utility. There was an option selected for OS 9 compatibility, but I'm not sure what that did. Disk Utility said that the format was successful. The problem is that the Mac won't read the hard drive after the reformat. It doesn't even show up as an unformatted volume, and Disk Utility chokes when I try to load it.
So, I stuck the disk drive into a Linux box. Linux showed that there were two conflicting partitions. On /sda9 was the main volume, but /sda10 contained a volume called "Boot OS X" and what I assume were files related to the OS X bootstrap.
The /sda10 partition was correctly mounted as native Unix, but /sda9 could not be mounted normally as a file system. Well, this didn't happen the last time that I did such a reformat operation, but of course, that was with an older version of Disk Utility. So, into the partition manager I went, fixed the problem and put the disk back on the Mac; it mounted fine.
Did something change in Disk Utility that may have caused this problem, or did I do something stupid in Disk Utility?
So, I stuck the disk drive into a Linux box. Linux showed that there were two conflicting partitions. On /sda9 was the main volume, but /sda10 contained a volume called "Boot OS X" and what I assume were files related to the OS X bootstrap.
The /sda10 partition was correctly mounted as native Unix, but /sda9 could not be mounted normally as a file system. Well, this didn't happen the last time that I did such a reformat operation, but of course, that was with an older version of Disk Utility. So, into the partition manager I went, fixed the problem and put the disk back on the Mac; it mounted fine.
Did something change in Disk Utility that may have caused this problem, or did I do something stupid in Disk Utility?