On Wed, 2021-05-19 at 17:22 +0200, Fabio Pedretti wrote: > Hi, I was using auto.master with this line in my Debian 10 system: > /net -hosts -O noatime,nodiratime --timeout=0 I don't remember -O ever being valid in the master map. The -O and --global-options are options to automount(8). I guess that might have worked at some point but it wasn't the expected syntax. > > Then I upgraded Debian from buster/10 to current bullseye/11, and > autofs got upgraded from 5.1.2-4 to 5.1.7-1 (official Debian > packages). > > Now I am getting this error: > nfs: Unknown parameter 'O' > > (Same issue if I replace -O with --global-options.) > > Indeed, removing "-O noatime,nodiratime" from auto.master, so, > leaving > with just: > /net -hosts --timeout=0 Try: /net -hosts noatime,nodiratime --timeout=0 that should be what's used I think. Ian