![]() ![]() Second, I tried to check if the memory is faulty by memtest but no error was found. media" by the recovery mode and boot with USB after pushing Opt and select USB, it crashes with black screen of Reboot because of Problem.įirst I have checked, If I can boot with USB in another way and I have installed Ubuntu on another bootable USB and could boot from USB without problem. But after I set it to "Allow booting from ext. When it is set to "Disallowed booting from external media" by the recover mode, then I can boot up with USB and they should the sign that startup allowance with external media is needed. But it crashes at once with black screen of Reboot because of Problem. But with mac mini 2018, when I select USB on MacOS installer after pressing Opt. ![]() In order to make clean installation to big sur from mojave, I have prepared bootable USB, which works perfect with my second mac mini 2014. But security update with mojave doesn't work at all. Mac mini 2018 firmware was revived and restored by apple configurator 2 and Mojave was installed without problem by internet recovery. After updating to monterey, several crashes I had to experience and it gets more and more often. I have used this mac mini 2018 for more monthes without any problem on big sur. ![]()
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