On Sat, Aug 22, 2015 at 08:35:00 -0400, Dominique Brazziel wrote: > The error still exists here even after specifying > '-B 255' because this WD Caviar drive does not > support APM. I'll let upstream handle this.
I found that I could avoid the error by giving a blank "apm" value in hdparm.conf, i.e. /dev/sdb { apm = } This causes the udev script to run "hdparm -B /dev/sdb", which simply prints (to stdout) a message with the current APM level and thus avoids causing the drive to return an error status when hdparm tries to change/set the APM level.... Nathan