I bought a new Mac Mini late December 2018 in late November, and it worked fine for a few weeks.
When the Mojave 10.14.2 Update took place in early December, I attempted to perform the update, but was left with a machine that had trouble booting, eventually reporting no bootable disk.
Attempting to recover/reinstall Mojave, I learned that neither would work, and that my start up was blocked because no administrator could be found in the start up disk security software utility. Local Apple “Genius bar“ experts were clueless. My machine is now in the process of being repaired.
Does anybody know how to prevent this problem from occurring?
It appears that logging in to the terminal command can provide some relief in some circumstances, But for those of us who have encountered an unbootable disk and no way to externally boot, and no way to reinstall Mojave, and no way to recover using Time Machine, the results are a catastrophe with no obvious way to prevent reoccurrence.
Clearly bridgeOS, the T2 chip, in the latest batch of Apple firmware/software/hardware are involved, since this problem does not occur except on the three Apple products which contain the T2 “feature“. Had I known I was buying such a headache, I would definitely have never purchased the new mini, a MacBook Pro, or an iMac Pro, the three new products involved in this issue.
Would it help for example, to create multiple administrators on the start up disk, so they had a single missing administrator token would be less likely to render the start up disk is useless?
Would a disk with multiple partitions, each of which had a start up system, perhaps allow emergency start up in another partition who’s token and administrator are still present even though some other partition is corrupted ?
Any other ideas? This is a terrible, unreliable environment for getting work performed in a reliable and safe manner. Clearly there must be some other solutions until Apple figures out how to fix this serious problem properly.
Thanks for any info,
Larry