I attempted to split my 150GB HFS+ partition into two 75GB partitions. I've tried it several times and every time the First Aid error has disappeared and surprisingly the contents of the Clover EFI folder are still there. Hey, I have a 13' Macbook Aluminum running OS X 10.5.7. Sudo diskutil mountDisk / dev / disk3s1> to mount the partition and review its contents. Keep in mind that each partition will take space up of the usable storage of your. This way, you may run two individual operating systems one the same device. This option allows you to partition the hard drive into separate systems. You may partition your Macs Hard Drive with Disk Utility. Sudo gpt add -b 40 -i 1 -s 409600 -t C12A7328-F81F-11D2-BA4B-00A0C93EC93B disk3> to recreate the partition.ĭiskutil unmountDisk / dev / disk3> to unmount the EFI partition again if it appears mounted on the Desktop.ĭiskutil repairVolume disk3s1> to repair the EFI partition. Partition Your Macs Hard Drive with Disk Utility. Sudo gpt remove -i 1 disk3> to delete the partition.
ĭiskutil unmountDisk / dev / disk3> to unmount the EFI partition. Sudo diskutil list> to find out the disk on which the EFI partition to be repaired is. Sometimes, after doing something on the EFI partition (reinstalling Clover or modifying a file in the EFI / Clover folder) when doing Firs Aid function of Disk Utility on that partition you get the error message "The partition map must be repaired because there is a problem with the file system of the EFI partition (-69766) ".Īpparently the system works fine like this but, if you want to correct this error, there is a drastic option (reinstall macOS) and another simple and fast one: repair the EFI partition from Terminal. Repair macOS Catalina EFI partition when from Disk Utility it is not possible to complete First Aid on the disk on which that partition is located with the message "The partition map needs to be repaired because there is a problem with the EFI partition's file system (-69766) ". Building a CustoMac Hackintosh: Buyer's Guide
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