![mac os disk utility do not see partition mac os disk utility do not see partition](https://i.ytimg.com/vi/VJpvO5OBeUs/maxresdefault.jpg)
Partitions will be aligned on 8-sector boundaries
![mac os disk utility do not see partition mac os disk utility do not see partition](https://i.imgur.com/dJs6RDc.png)
Look at the partitions using the p command: Command (? for help): pĭisk /dev/disk3: 1953525168 sectors, 931.5 GiBĭisk identifier (GUID): ABFA9105-73F4-4627-9890-9DECC55E86ACįirst usable sector is 34, last usable sector is 1953525134 Type device filename, or press to exit: /dev/disk3įound valid GPT with protective MBR using GPT. Run gdisk and select problem drive: ~% sudo gdisk I tried various other search terms and found that this question is actually a duplicate of this one: OS X 10.6 Snow Leopard no longer mounting an external USB drive. So is there something I can do to fix this non-destructively, and should I have done something differently when I was adding the second partition? It's not the end of the world if I have to reformat, but I'd rather keep my full Time Machine history if possible. So clearly the data is still there, and in some kind of usable format. Nevertheless, when I reboot into Windows 7, the HFS+ partition pops up again, correct volume label and everything. diskutil on the command line has this to say: ~% diskutil list /dev/disk4ģ: Microsoft Basic Data BACKUPS 300.0 GB disk4s3 Its space is shown as "disk4s2", and when I click on it in Disk Utility it's supposedly in "MS-DOS (FAT)" format.
MAC OS DISK UTILITY DO NOT SEE PARTITION MAC OS X
Looking at the disk in Disk Utility, the reason is clear: Mac OS X can't actually see any HFS+ partition there.
![mac os disk utility do not see partition mac os disk utility do not see partition](https://i.stack.imgur.com/RGi8f.png)
When I boot into Mac OS X, though, only the NTFS volume appears. Now that I've done this, I can see both volumes in Bootcamp Windows, and they seem to be fine. Resize HFS+ partition using Mac OS X Disk UtilityĪdd NTFS volume in the free space using Windows 7 Disk Manager I added a second NTFS partition for similar use with Windows, as follows: I've got a USB hard drive that I've been using with my Mac for backups, formatted as one large HFS+ partition.