Apple .... Can't even erase a Hard Disk
Hi there,
I'm super annoyed, I'm trying to format my old mac in order to sell it.
First I tried to simply use the Disk Utility Tool in Order to format/delete the current Hard Drive.
1.) That didnt't work => "Could not unmount device"
2.) Ok cool, tried terminal diskutil list , then eraseDisk, sudo diskutil eraseDisk JHFS+ disk1s1 disk0 ...
Nothing works =>
Marcels-MacBook-2:~ bla$ sudo diskutil eraseDisk JHFS+ disk1s1 disk0
Started erase on disk0
Unmounting disk
Error: -69877: Couldn't open device
Marcels-MacBook-2:~ bla$
=>
The entire web is full with this "Error: -69877: Couldn't open device" , nobody has a solution which works properly.
[Edited by Moderator]
MacBook Pro 13", macOS 10.14
