PARTITION TOOL MAC OS X UPDATE

(use the proper disk identifiers here: disk0s5 may be different) Get a new updated view of the partition table: diskutil listĭd your 'old' macOS partition disk0s5 to the new partition disk0s2: diskutil umountDisk disk0 Gpt remove -i 2 disk0 #remove Linux 1st partition (booter?)Ĭreate a new partition for a new main macOS with the same size as your old one: diskutil umountDisk disk0

Gpt remove -i 4 disk0 #remove Linux 2nd partition (main) Gpt remove -i 7 disk0 #remove 2nd recovery partition Remove partitions (which requires to unmount disk0) diskutil umountDisk disk0 To get a standard partition layout you have to delete a lot of partitions, create a new partition, dd or asr your main macOS volume to a new one and rearrange your recovery partition: belong to the macOS Base System (your recovery system you booted to previously)ĭisk0 is your main internal disk device containing the EFI-partition (dis0s1), some Linux partitions (disk0s2-disk0s4), your main macOS volume (disk0s5) and two Recovery HDs (disk0s6/disk0s7) one of which is useless - probably disk0s7. Verify and repair your main macOS volume with Disk Utilityįirst you should get an overview of your disks and the partition layout:Įnter diskutil list Example listing: /dev/disk0Ħ: Apple_Boot Recovery HD 650.0 MB disk0s6ħ: Apple_HFS Recovery HD 650.0 MB disk0s7Ģ: Apple_HFS OS X Base System *1.3 GB disk1s2.On a 50 Mbps-line it takes about 4 min (presenting a small animated globe) to boot to a recovery netboot image which usually is loaded from an Apple/Akamai server.

PARTITION TOOL MAC OS X UPDATE

The prerequisites are the latest firmware update installed, either Ethernet or WLAN (WPA/WPA2) and a router with DHCP activated. Restart to Internet Recovery Mode by pressing alt cmd R at startup.Detach any external drive (especially your external Time Machine backup drive).

to the 'beginning of a disk') with on-board macOS tools.īasically you have to remove all useless partitions, clone or restore your main macOS drive to a new partition on the same drive and delete the old one. You can't expand a macOS partition to lower block numbers (i.e.

Partition tool mac os x