erased HDD cannot boot or reinstall
Hi, I bought a used iMac and upon attempting to power on the machine does not boot and cannot find the operating system. This lead me to thinking the previous owner didn't really know what to do to reset the machine properly. I am still awake a response to what they actually did and while waiting for an answer I went investigating.
When trying to boot to recovery mode, it went straight to internet recovery. I thought I would see if reinstalling High Sierra was possible, which it is not, the disk is locked but upon checking in disk utility it is not encrypted.
In the disk utility there is the following APFS volumes:
Below is the the result of diskutil list:
disk0 and disk1 make up the apfs container and in the container disk3 I see the all the volumes are small and appear to have been erased and thus explain why the machine doesn't boot and why it goes straight to internet recovery.
Now though, I'm not sure what the best way to fix this is in order to reinstall High Sierra.
I have read a lot of different posts, please could someone kindly tell me what is the best thing to do to fix it?
Many thanks,
iMac Line (2012 and Later)
