With the help of another topic, i managed to make it bootable again, but now i’m getting «Missing operating system» error.
After resizing in Disk Utility, i tried to switch over to my windows partition but it wouldn’t appear on the startup screen. Yesterday, i did the exact same thing because i needed a bit more space in my windows partition. Last week, i resized my partitions without any problem using Disk Utility and a little software on Windows. I have a windows 7 partition on my iMac for gaming purpose. I read a lot about this issue since yesterday, but i haven’t found a solution yet, so i’m asking for help! Here’s the story. Unable to repair this whole disk: A writable disk is required (-69772)
Underlying error: 8: POSIX reports: Exec format error Problems were found with the partition map which might prevent bootingĮrror: -69766: The partition map needs to be repaired because there’s a problem with the EFI system partition’s file system Started partition map verification on disk1Ĭhecking the EFI system partition’s file system
Read-Only Volume: Not applicable (no file system) Volume Free Space: Not applicable (no file system) Volume Name: Not applicable (no file system)Ĭontent (IOContent): GUID_partition_scheme I have some data that will be lost so reformatting is not an option.Ģ: Apple_CoreStorage Macintosh HD 250.1 GB disk1s2ģ: Apple_Boot Recovery HD 650.0 MB disk1s3 Booting in target disk mode and trying everything I can think of with diskutil in Terminal.Īt this point I’ve given up on Disk Utility and have been looking for the right combination of diskutil, fsck, and gpt to get things working.Booting in target disk mode and repairing the disk with Disk Utility.Booting on an external USB 10.10 installer and repairing the disk with Disk Utility.Booting into the recovery partition and repairing the disk with Disk Utility.I’ve tried the following with no success: It was working fine when I was browsing the web one day and then suddenly froze with the spinning beachball I couldn’t force quit (it was truly hung) so I forced a restart and now the computer won’t boot at all. I’m having a problem with the internal SSD on one of my Macs running 10.10. If anyone can tell me how to remove the partition that is hidden / missing and how to get around the GPT Partition error, I’d be really grateful.Ģ: Apple_HFS Macintosh HD 299.0 GB disk0s2ģ: Apple_Boot Recovery HD 700.9 GB disk0s3ġ: DOS_FAT_32 SAN DISK CR 32.0 GB disk2s1 Heres a screen shot of the Disk Util list and the Disk Utility, Upon returning to the iMac, I can only see the storage that I left in the Mac partition and can’t see the Bootcamp / untitled Partition so the iMac is only showing the storage I left it with. Then had a problem installing Windows 10 as I got an error “The selected disc is of the GPT Partition Style”, so went away while I researched this. Used Bootcamp to partition my HD to allow Windows 10 installation and followed instructions to the letter (or so I thought)Īt the “Where do you want to install Windows to” I selected the Bootcamp partition and formatted that partition (I saw it as Untitled after that) I’m running a late 2013 IMac with 1Tb SSD recently upgraded the OS to El Capitan
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