How can I tell if I have a Unix Compatibility Subsystem installed?

The primary indicator of a usable Unix Compatibility Subsystem is the presence of a valid location for %UNIXROOT%. In general, this should be the root of a local volume (results may be unpredictable when this is directed to a network share or removable media which may not always be available). To test for this, open an OS/2 window and type:

set UNIXROOT <Enter>

This should return the value (if set) of the %UNIXROOT% variable. On that  volume, look for the directories as discussed on this wiki page. This is a good indication that there is a working subsystem in place.

Was this answer helpful ?

Yes
(4)

/

No
(1)