10.10.3 supplemental broke my iMac
When I applied 10.10.3 "Supplemental" update, my late 2009 iMac became unbootable, i.e., internal HD is deemed unbootable and it booted to recovery mode.
Once there, disk utility checks were all OK to no avail.
It is as if the supplemental was causing the bug it was supposed to fix.
So, via recovery, Yosemite was reinstalled, and then it lead to infinite kernel panic loop during boot.
Booting to Safe mode was not possible, only to recovery.
After erasing the HD from recovery, I restored from Time Machine which was partially successful with some missing files.
It's 10.10.3 now without the supplemental.
Also, Time machine was missing some files in directories that was otherwise being backed up partially.( There were not on exclusion list)
I got lucky this time, but I have lost confidence in TimeMachine backups as well.
I am very disappointed with Apple's software quality of late, including the bug where the screensaver reverting to Nat Geo randomly and Preference Panel crashing when Internet Accounts is opened since 10.10.3.
Those were mostly annoyances, but this screwup was scary.
Since I am operational, I am not really asking for help, but of course, I won't be touching 10.10.3 supplemental and I advise others not to as well, unless you have other pressing reasons.
It'd be helpful if others are having similar experiences chime into this thread.
iMac, OS X Yosemite (10.10.3), Late 2009 iMac, 8G Mem
