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1 answer
2k views

How to properly remove a Linux partition without messing up your drive?

I know this seems like an beginner / dumb question, since an obvious answer would be: Open Disk Utility Remove Linux partition However it seems that it might not be that easy, and that following ...
Oreille's user avatar
  • 101
16 votes
2 answers
15k views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF'

Yesterday, I have tried to delete an Ubuntu partition. Since, my Mac (13", MBPro mid-2014) doesn't boot. Now, I boot on Mac OS copy with an USB. i follow different subject of this forum (like this : ...
Nicolas Lorand's user avatar
1 vote
0 answers
1k views

Cloned disk with dd, but it won't mount?

Goal: clone my internal disk to an external disk, and boot from the external disk. update thanks klanomath, who pointed out that I had to change the uuid of the core storage disk for both the ...
j-a's user avatar
  • 111
1 vote
1 answer
844 views

Unable to boot - facing stop sign; Virtual Whole Storage needs repair; Time-Machine cannot find restoration disk destination

Dear respected experts, I have a MBP Retina 2015 (Yosemite). I tried to partition my Macintosh HD ( internal 1TB SSD) disk (by splitting into half). It seemed to have split but has given me some ...
questioner56's user avatar
2 votes
1 answer
412 views

Fusion drive suddenly not bootable: "Too few free segments", made read-only

I've dealt with a lot of disk issues over the years admining lots of different OSs, but this one is new to me... help/ideas appreciated before I give up and restore! Woke up this morning to my iMac (...
Matt Haffner's user avatar
1 vote
1 answer
684 views

Startup Disk Full: Core File

The storage on my start up disk is being consumed by some kind of core files labeled as cores:1234 (numerical digits change). I downloaded OmniSweeper, which helped me locate these files and aware ...
d.garcia's user avatar
0 votes
2 answers
4k views

How do I repartition my Mac to get rid of my dual boot setup?

I setup dual boot on my Mac (with Ubuntu) and want to get rid of it. The Disk Util GUI shows me: However attempting to remove the disk0s4 or disk0s5 partitions results in: Could not unmount ...
Peter's user avatar
  • 103
3 votes
1 answer
2k views

CoreStorageFamily::unlockVEKs() failed to unwrap the vek, status = e00002bc

I have a filevault2 disk with two partition. One is the boot partition, the other contains data, both are encrypted. Today, after installing the latest 10.8 update (10.8.4 I guess), the computer ...
Lydie's user avatar
  • 31
5 votes
2 answers
13k views

Understanding kernel panic error log

My MacBook Pro worked all normal when all of a sudden it went black. It tried to reboot itself but immediately produced a kernel panic. From then on I was never able to boot again. I could only enter ...
maze's user avatar
  • 151