Linked Questions

1 vote
1 answer
2k views

Merge all space into one volume [duplicate]

I wanted to delete all my partitions and merge all the space to the Macintosh HD but I made a mistake by taking the Macintosh HD volume out of the physical storage list. I don't know what happened: I ...
Facundo Schiavoni's user avatar
22 votes
2 answers
9k views

Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I was trying to install Linux on my MacBook for class when I bricked my computer, which now in an unbootable state. I made my partition too small, so I was going to delete and create a larger one. ...
HalfwayThere's user avatar
6 votes
3 answers
19k views

MacBook Pro stuck on GRUB minimal Bash at startup

I had a dual boot Linux Mint 19 and macOS on my MacBookPro11,2. Since the CPU was overheating with Linux, I decided today to delete the Linux partition. Little problem, when I start my MacBook Pro now,...
thefruitismine's user avatar
7 votes
1 answer
5k views

OS volume shows as type 'FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFF' after attempting to delete some Linux partitions—cannot log in

I was unable to just delete the partitions left by an old Linux Mint installation by pressing the '-' button in disk utility. I looked online and read that I could reformat them to a journaled format ...
George's user avatar
  • 73
2 votes
1 answer
3k views

Tried to fix filesystem type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF and probably made it worse

I have a MacBook Air 11 inch which I recently tried to install Linux on with a swap partition and a root partition. In my stupidity I used the “disks” program under “try ubuntu now” to delete the ...
Mcvith's user avatar
  • 23
2 votes
1 answer
2k views

Failed attempt to fix macOS partition startup volume set to FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I attempted to fix an issue I encountered yesterday my MacBook Pro (13-inch, Mid 2012) following instructions in the top answer of this thread. I'm afraid I may have inadvertently destroyed my data by ...
trevorraney's user avatar
2 votes
1 answer
652 views

Cannot use diskutil verifyVolume, trying to boot back into macOS after deleting Ubuntu partition

After deleting my Ubuntu partition and restarting my computer, I am unable to boot into macOS. I've followed the steps outlined here: macOS partition startup Volume type FFFFFFFF-FFFF-FFFF-FFFF-...
kasool's user avatar
  • 23
0 votes
1 answer
681 views

Does "gpt remove" command delete files along with partition? Trying to recover a Mac OS partition Vol Type FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I have a Macbook Pro with Big Sur on it, and I installed Linux Mint. I then resized the encrypted Mac OS APFS partition in order to grant Linux more space. After that I created another smaller Linux ...
SH10151's user avatar
  • 113
0 votes
1 answer
248 views

2011 MBP , installed Ubuntu, erased partition, boot failures [duplicate]

Result of internet recovery mode boot, attempt to remove disk0 and add. Permission denied : Result of sudo dd if=/dev/disk0s2 skip=64 count=3 bs=16 | hexdump -Cv and sudo dd if=/dev/disk0s2 skip=4 ...
rahul kumar's user avatar
1 vote
1 answer
296 views

macOS partition startup Volume and Recovery Disk type FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF plus part of the disk corrupted?

I have a situation very similar to the ones depicted in two previous questions I found (this and this), but still different (I address why my situation is different later on in the question). The ...
scugn1zz0's user avatar
  • 113
2 votes
3 answers
161 views

High Sierra doesn't boot after ubuntu partition deletion (which was dual booted)

About 4 months ago I dual booted High Sierra with ubuntu. I dedicated 20 GB of my hard with default Disk Utility. Recently I tried to merge the partition back, but during this process it failed and ...
Arash's user avatar
  • 131
1 vote
1 answer
142 views

How do I remove Ubuntu from my MacBook?

My MacBook has three OSs at the same time: macOS, Boot Camp Windows 10, and Ubuntu. It will display Windows, Macintosh HD, and EFI Boot (going to Ubuntu) when pressing the option when booting. I split ...
whaleboss's user avatar
1 vote
1 answer
136 views

bootcamp NO BOOTABLE DEVICE after gpt add EBD0A0A2-B9E5-4433-87C0-68B6B72699C7 disk0

My macbook has three os at the same time: macOS, bootcamp win10, ubuntu. When booting, I choose os through rEFInd. After I removed ubuntu, I found that only windows and efi boot were left when booting....
whaleboss's user avatar
2 votes
0 answers
142 views

Boot Partition suddenly inaccessible

I've run into quite a problem - my Mac (mid 2015 21.5" 4k iMac, running Mojave) cant find my boot partition (disk0s2). I've made some headway, it previously just showed it as FFFFFFFF-FFFF-FFFF-FFFF-...
r_w_n's user avatar
  • 21
2 votes
0 answers
119 views

Mac partition shows as type FFFF-FFF.... - partition doesn't show in boot menu

I have a Ubuntu 16.04 partition running on my Mac alongside the MAC OS. It started recently that I could only boot into a black screen in the Mac OS and now the partition in the boot menu has ...
HaLed's user avatar
  • 21

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