What to do if problems were found with the partition map?Ī “partition” is a segment (called a “region”) in a disk that is treated as an individual storage unit.

How do I change the map partition on Mac?.

What does couldn’t modify partition map mean?.Method #3: Use the Terminal App to Format the Drive Create a New Partition Map.Method #2: Use Disk Utility to Format the Drive and Create a New Partition Map.Method #1: Use Disk Utility’s First Aid Feature.How to Fix “Couldn’t modify partition map” Error.How to Recover Deleted Data from a Problematic Device.When I run Diskutil, the following information appearedĢ: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF 191.5 GB disk0s2ģ: Microsoft Basic Data Sin título 8.0 GB disk0s3Ĥ: Apple_APFS Container disk1 40.3 GB disk0s4Ġ: APFS Container Scheme - +40.3 GB disk1ġ: APFS Volume Mac2 - Datos 7.9 GB disk1s1ġ: Apple_APFS Container disk3 20.4 MB disk2s1Ġ: APFS Container Scheme - +20.4 MB disk3ġ: APFS Volume wxHe圎ditor for Mac 8.9 MB disk3s1ġ: Apple_HFS iBoysoft Data Recovery 61. Unmount was dissented by PID 1 (/sbin/launchd) Unmount of disk0 failed: at least one volume could not be unmounted Then I read about the force unmount to solve it but appear this message: Gpt remove: unable to open device '/dev/disk0': Resource busy I read some posts, but when I try to run the function: Next, I installed macOS on the Ubuntu partition and I am trying to repair the lost partition from the terminal. I tried to fix with Disk Utility on cmd+r, but it did not work.

When I restart the MacBook and pressed option, nothing appeared. After deleting my Ubuntu partition, I lost my principal partition of macOS x. I have an issue with my MacBook mid 2012.

Mac volume could not be unmounted