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Old 03-11-2022, 06:16 PM
madom madom is offline
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Join Date: Oct 2008
Posts: 17
Drive not showing up as boot drive


I'm using a MBP Mid-15 with OSX 11.5 and the latest SD!

I want to upgrade my SSD and need to boot from an external drive to do so. I formated my Toshiba USB3-Drive as APFS and did a full back up (Backup All files. I actually did that twice now, but the drive won't show up as a bootable device. Neither when I hit Option-Key on startup nor when I check the startup-pane in preferences.

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