Not sure if it is the same problem, but:
$ modprobe -l modprobe: invalid option -- 'l'
$ modprobe --list modprobe: unrecognized option '--list'
$ uname -a Linux saucy64 3.10.0-6-generic #17-Ubuntu SMP Fri Jul 26 18:29:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Apparently, modprobe does not recognize the "--list" option.
Not sure if it is the same problem, but:
$ modprobe -l
modprobe: invalid option -- 'l'
$ modprobe --list
modprobe: unrecognized option '--list'
$ uname -a
Linux saucy64 3.10.0-6-generic #17-Ubuntu SMP Fri Jul 26 18:29:23 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux
Apparently, modprobe does not recognize the "--list" option.