Howdy
Have you ever opened the computer and used vacuum and canned air to clear out dust?
Denver Dan
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On Oct 31, 2019, at 1:09 AM, jimrobertson via Groups.Io <jimrobertson@...> wrote:
?Mid afternoon today I found myself in a Missoula tea room waiting for my spouse. No WiFi, no power adapter, but enough flat space for me to knock out a few emails.
I opened my late 2017 MacBook Pro (15 inch, 4 core i7, 512 GByte SSD, 1g GB RAM, Touch Bar/4 TB3 ports, macOS 10.14.6, only to discover an onscreen message ¡°your Mac has been restarted because of a problem¡± (I¡¯ve seen that on screen only rarely in the past).
The internal SSD is about 60% full. I had 8-10 apps running, including several tabs in Safari that displayed auto-updating many-layered USGS and Sonoma County emergency services maps displaying fire perimeter, MODIS data from USGS mapping Satellites, CalTrans and Sonoma County Sheriff¡¯s evacuation maps (memory intensive).
My SSD is encrypted by FileVault2.
I dismissed the message as an oddity and tried to type an email message, but within a minute or two, the computer restarted, with the same message repeated.
I tried booting into Safe Mode (mistakenly, I went first to Single User Mode and realized I¡¯d get nowhere with the command line stuff spewing across the screen). However, I couldn¡¯t get Safe Mode to boot to completion, so I gave up and waited until I was home to trouble shoot more. There, with the power adapter plugged in, I was able to get into Safe Mode and run Disk Utiliity. I read a bit and came across recommendations that I should boot into the recovery partition and run Disk Utility. So, I did that. My encrypted boot partition passed, but when I tried to run Disk Utility on the other partitions on the SSD, I was told about some errors or corruption that might affect booting. A bit more ¡°research¡± and I uncovered some instructions about unlocking the encrypted disk by mounting the ¡°wrapper¡± (my term, not Apple¡¯s) partitions first.
Following those instructions, I was able to unlock those pre-boot partitions and run Disk Utility, which now reported NO errors.
I restarted the Mac, logged back into my admin account, and I¡¯ve had no problems over about 3 hours on the computer this evening.
Is it likely there are problems left I don¡¯t recall seeing ANY messages stating that anything had been repaired.
Jim Robertson
