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Hi I was wanting to know if anyone could help me with this problem when I was trying to remove a partition but then when I removed it a unformatted partition appeared and it was pretty much locked down I couldn’t do anything with it even if I tried to erase my main drive it would just display an error. I have a MacBook Pro early 2011.
MacBook Pro 13″, macOS 10.12
From your screenshots the Volume macOS Sierra is greyed out.
Highlight it and then click on the Mount button.
If you erase the Hitachi disk you will erase everything on that disk
is that what you want to do you will lose all your data.
Before erasing your disk completely have you got a copy of the OS on a bootable USB stick,
I would not rely on Apples Recovery Servers.
Yes I know and I also said in my previous post that the MacOS Sierra Volume is not mounted.
Highlight MacOS Sierra and click on the Mount button. If it Mounts then you should
be able to go back to highlighting Hitachi HT........ and then see if you can Erase it.
Huh that didn’t work either
Yes I have a back up but when I try to format the Hitachi disk I get an error message
for Some reason it was APFS so I used a Mac is high Sierra bootable installer because I was on Sierra
Unformatted disk partition macOS Sierra
