Ubence Quevedo wrote: > However, when I boot the same system off of Ubuntu 18.04 Live USB with the > same version of smartmontools [6.6], this command works properly:
Just a note that Ubuntu does not actually have the same version as MacPorts. As your output shows: MacPorts: > smartctl 6.6 2017-11-05 r4594 [Darwin 17.6.0 x86_64] (local build) Ubuntu: > smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.15.0-20-generic] (local build) MacPorts has the 6.6 release, corresponding to svn r4594. Ubuntu has an svn snapshot from sometime after 6.5 but before 6.6, r4324. This is confirmed by the listed Ubuntu package version: <https://packages.ubuntu.com/bionic/smartmontools> - Josh
