Aimeelockwood19 Said:
"MacBook Pro update -: I can’t update my laptop because I can’t choose a start-up disc when I try to cancel this it just restart and updates for another half an hour then won’t let me actually upload the update it says select the system you want to use to start up your computer and nothing comes up"
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Mount the Drive:
Boot into Recovery Mode (Intel or Silicon) . Then, using Disk Utility, see if the Hard Drive is seem. If it is, then see if you need to click the “Mount’ button for it. Try rebooting once more. If of no success, then click unmount button, and then the mount button. Try rebooting once more.