Ubuntu
util-linux package

  1. Bug #1293152
  2. Comment #5

Comment 5 for bug 1293152

Revision history for this message
Richard Laager (rlaager) wrote : Re: fstrim-all weekly cron generate noise when hdparm isn't installed or on a VM

For those finding this bug via Google, editing /etc/cron.weekly/fstrim was enough to suppress the errors I saw:
exec fstrim-all 2> /dev/null | grep -v 'is not a drive that is known-safe'

Alternatively, just commenting out that line to disable the whole thing would work too.