0
votes
0answers
11 views

Partition Table Overwritten by MBR for USB external storage

I was trying to make my SD card writable again on my MBP which I had my 1 TB external storage connected to my Macbook Pro. So I ran the command $ sudo diskutil eraseDisk FAT32 SDNAME-SD MBRFormat ...
0
votes
0answers
78 views

How to recover files by original filename without access to beginning of disk/partition

As a result of a dd user error the first Gigabyte was overwritten on a recent Macbook Air and it seems the beginning of all partitions are lost. Except for carving files using photorec or similar is ...
3
votes
1answer
108 views

Does using “rm” command cause journaling corruption?

Some time ago I had some problems with my Mac drive, so I went to the recovery partition and used Disk Utility to check for problems. It reported a huge discrepancy between the journaled free blocks ...
0
votes
0answers
676 views

Dual partition a large drive for use by Mac and Windows

I have a 3TB USB3 drive that I want to use between my Mac and Windows laptops. A 1.5TB partition will be used for Time Machine and another 1.5TB partition will be used by Windows for file storage. ...
1
vote
1answer
5k views

How to repair external hard drive that fails diskutil with 'Disk Full Error'

If I run fsck_hfs -y -d /dev/rdisk2s10 it putters along, rebuilds the catalog B-tree then fails when writing the new catalog to disk. bash-3.2# fsck_hfs -d -y /dev/rdisk2s10 ** /dev/rdisk2s10 Using ...
6
votes
4answers
4k views

What are the sector sizes on Mac OS X?

I read on the HFS Plus Wikipedia page that the default sector size on a Mac is 512 b. However, I also read that Macs support 4kb sectors. How can I determine which I have, 512 b or 4 kb sectors? I ...