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I have deleted a dual boot with windows installed unfortunately not with boot camp but with disk tool. Now I have 200 gb that is not available on my disk. What do I do?
I have deleted a dual boot with windows installed unfortunately not with boot camp but with disk tool. Now I have 200 gb that is not available on my disk. What do I do?
Thanks for all the help but unfortunately, I can not delete my whole disk. There is an error that it can not be made passive - I think it is called unmounted in English.
The picture states that the disc can not be erased because it can not be made passive (un mounted?)
And suddenly I have a disk image - it was not there yesterday??
Hello
Here it is:
iMac mid 2011, OS 10.13.3
Last login: Sun Mar 4 17:29:25 on console
iMac-2:~ admin$ diskutil list
/dev/disk0 (internal, physical):
#: TYPE NAME SIZE IDENTIFIER
0: GUID_partition_scheme *1.0 TB disk0
1: EFI EFI 209.7 MB disk0s1
2: Apple_HFS Macintosh HD 799.0 GB disk0s2
3: Apple_Boot Recovery HD 201.0 GB disk0s3
It is this Recovery Hd I don'r understand?
Sorry but this is the respond:
Last login: Mon Mar 5 19:59:24 on console
iMac:~ admin$ diskutil unmountDisk disk0
Unmount of disk0 failed: at least one volume could not be unmounted
Unmount was dissented by PID 0
See
What to do before you sell or give away your Mac - Apple Support
How to reinstall macOS - Apple Support
In Internet Recovery, you can erase the whole disk, and install a new copy of macOS.
You cannot erase the internal disk when booted normally. Reboot and hold Command+Opt+R, and boot into Internet Recovery. Follow the steps in How to reinstall macOS - Apple Support .
Post the output of the command from macOS Terminal
diskutil list
What is the year/model of your Mac (do not post the serial number) and the macOS version?
This is a known issue in High Sierra. Do you have a Time Machine backup of macOS?
No i deleted it because i want to sell my iMac and thought everything was okay 😕
In Terminal, run
diskutil unmountDisk disk0
diskutil eraseDisk disk0
The OS X image is the image used for Internet Recovery.
Are you in Internet Recovery or normally booted in macOS?
Normally booted in macOS. Don't know about Internet Recovery?
That's it! You have save my day!🙂
Thanks a lot - very nice - you know Mac!
Please post back, if you run into any further issues.
I will - thank you very much!
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