I was running Software Update. It was working on PGP keyring for Manjaro and there was a consistent pattern of HD activity . . . LED activity light would flash consistently once ever 1.5 seconds that went on for 20 minutes.
I selected Quit or a buttom with a similar name.
I restarted Software Update and even after a cold boot get this error message when I click on Details:
unable to lock database
I am running nothing. perhaps something was started at boot that interferes.
Any ideas?