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I want to completely reformat my internal hard-drive on an intel macbook. I'm having troubles. This is what happens in diskutil:
- Erase the drive selecting Max OS extended Journaled (HFS+ Journaled). Two partitions appear on the left tab. "disk0" (HFS+) and "Untitled" (HFS+ Journaled). "diskutil info" shows there are six disks (/dev/disk{0-5}. Three of them are nambed "untitled" and are small. /dev/disk1 is an apple partition scheme.
- Trying to install OSX with the CD (pushing continue), there are no disks to choose.
- Going back into DiskUtility, only the "Untitled" partition shows up under the main hard-drive. The disk and the partition appear to be "OK" according to DU (Disk Utility). I try various things: repartitioning, erasing the disk, deleting the partition and then repartitioning, change the name of the partition etc ... but I can neither mount the partition nor see it in the install screen. Disk Utility thinks the volume is "OK" when I verify it.
I previously had an ubuntu/OSX dual boot installed with refit. I'm not sure if that is relevant. I would think diskutil should be able to reformat a hard drive regardless of what was on it before.
I've also tried numerous things with diskutil and fdisk but with no luck. My next step is to try gparted.
I was running OSX on this prior to the reformat so I think the drive is fine physically.
Also, I've never intentionally used any encription on any of the partitions (maybe refit boot is encripted by default) so I don't think that is causing problems.
+1 This is a good workaround to the problem without having to resort to a Live CD. – None – 2012-03-30T16:46:34.047
Thanks! This seems to have worked. I was sure I did all of this but I must have missed a combination. I think I probably didn't select the disk and selected the partition instead. – mathtick – 2012-04-19T02:13:23.003
Ah, that makes sense! Glad it got sorted! – None – 2012-04-19T22:41:21.063