hdparm problem

[jd1008]

On 03/20/2015 01:18 PM, Joe Zeff wrote:
> On 03/20/2015 12:04 PM, jd1008 wrote:
>> On 03/20/2015 11:24 AM, Rick Stevens wrote:
>>> hdparm --user-master m --set-security-pass
>>
>> It is belching the usage at me:
>>
>> # hdparm --user-master m --set-security-pass thepassword /dev/sdc
>
> Have you tried using -m instead of just m?  HTH, HAND.

Man page says only choices are
   u
and
  m

Does not mention a - preceding either one.