Timeline for Macbook won't let me boot from external drive because of there's no administrator in the startup security utility
Current License: CC BY-SA 4.0
16 events
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| Mar 24, 2022 at 5:12 | comment | added | pion | @cocktailsanddreams Great! Glad it worked out. If you have a moment, would you mind marking this answer as accepted in order to close out this question? Thanks! | |
| Mar 24, 2022 at 2:23 | comment | added | cocktailsanddreams | Yes, I just formatted and reinstalled Big Sur from scratch. | |
| Mar 11, 2021 at 4:28 | comment | added | pion | @cocktailsanddreams Did you end up formatting and reinstalling? | |
| Feb 10, 2021 at 22:52 | comment | added | cocktailsanddreams | Hi Pion. Do you think formatting and a reinstall is my only remaining option here? Or would you recommend trying anything further before I do so? | |
| Feb 9, 2021 at 12:10 | comment | added | cocktailsanddreams | Update above in original post. It's almost certainly that bug. | |
| Feb 9, 2021 at 11:43 | history | edited | pion | CC BY-SA 4.0 |
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| Feb 9, 2021 at 11:29 | comment | added | cocktailsanddreams | Added results from terminal above | |
| Feb 9, 2021 at 11:26 | comment | added | cocktailsanddreams | Thank you for your help by the way, very much appreciated.You're outdoing both a major corporation's IT department and level 3 Apple phone support right now. Currently the drive is verifying in terminal, will report back | |
| Feb 9, 2021 at 11:10 | history | edited | pion | CC BY-SA 4.0 |
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| Feb 9, 2021 at 11:04 | comment | added | cocktailsanddreams | In the meantime, the greyed out Macintosh HD — Data external drive has appeared in Disk Utility, but clicking mount does nothing. | |
| Feb 9, 2021 at 10:56 | comment | added | pion | Please add all updates to your original question, not in comments | |
| Feb 9, 2021 at 10:41 | comment | added | pion |
Please run the diskutil commands I mentioned above.
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| Feb 9, 2021 at 10:40 | comment | added | cocktailsanddreams | I hooked the macbook back up to the iMac in target disk mode and loaded disk utility. For some reason, it takes 5 mins to be able to show the two external volumes. I assume because of the lack of hard disk space, I have Macintosh HD and Update showing. SHOW ALL DEVICES was already enabled by default Now using Terminal on the iMac. I have navigated my way to /volumes and i see: Internal 1, Macintosh HD (external) and Update (external) then going cd 'Macintosh HD' shows me "System, bin, dev, sbin, usr." I can't see users anywhere? Do I need to unhide the data volume you mentioned? | |
| Feb 9, 2021 at 10:34 | vote | accept | cocktailsanddreams | ||
| Feb 9, 2021 at 10:34 | |||||
| Feb 9, 2021 at 4:03 | history | edited | pion | CC BY-SA 4.0 |
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| Feb 9, 2021 at 3:54 | history | answered | pion | CC BY-SA 4.0 |