Getting a hard drive back
I think I permanently deleted the hard drive (vs just erase) on my MacBook Pro. I tried reinstalling the OS but there is no drive to put it on. How do I get the drive back?
Question marked as
What exact Mac is this?
From the Internet Recovery (option Command R) or from a TM backup (option boot) or a USB bootable installer you can get to Disk Utility >View >Show all Devices you may well have to erase/format the parent drive.
Once re-formated ( earasing/loosing all data in the process) you quit the Disk Utility, then from this same Recovery you can reinstall the macOS, or restore from a Time Machine backup.
How to erase a disk for Mac - Apple Support
How to reinstall macOS from macOS Recovery - Apple Support
Recovery: https://support.apple.com/en-us/HT204904