Tagged Questions
1
vote
1answer
961 views
How to partition an SSD that fails with error 69888 - couldn't unmount disk?
I erased the SSD drive in my MacBook and was reinstalling Lion when it failed about 75% through the install. Now in Disk Utility, sometimes I see the SSD drive and sometimes I boot and it's not there ...
1
vote
1answer
265 views
Repartition my existing hard disk
First time Mac user here.
I'm quite aware with all the posts here about repartitioning hard disk but I'm quite confused if repartitioning would erase all my data on my hard disk.
I recently bought ...
1
vote
6answers
4k views
Partitioning secondary internal hard drive failure
Looks like my 2nd HDD became a brick. I tried to partition it via Disk Utilities/booted from recovery partition/diskutil to no luck!
I got vague/strange errors such as: unable to unmount, or:
...
3
votes
3answers
6k views
Deleting a partition in Disk Utility fails. (Error: -69879)
This is the output in Disk Utility:
Disk Utility cannot modify this disk because it contains CoreStorage
physical volumes. Use command line distil instead.
The selected partition won't be ...
5
votes
1answer
6k views
How do I format a disk partition from the command line on OS X?
How do I format a disk partition from the command line on Mac OS X?
In case someone wonders why: because for some people Disk Utility fails.
