Find a Mac’s serial number in Recovery Partition or the macOS installer

I couldn’t find this anywhere, so I thought I’d blog about this. Thanks to the #general channel on the MacAdmins Slack for the help.

To find a serial number for a Mac when booted into the Recovery Partition or the macOS installer, to go Utilities and choose Terminal, type in ioreg -rd1 -c IOPlatformExpertDevice | awk -F'"' '/IOPlatformSerialNumber/{print $4}'

That’s it, it will output the serial number for the computer.

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