Herbert Rubin wrote (on comp.unix.sco.programmer):
The generic answer is `mkdev tape`. There are lots of details, whichQuote:> How do I create a device for my tape backup? 1/4" tape drive
might possibly have been communicated to you if you'd named your
operating system and version, and the hardware you are installing.
`1/4" tape drive' narrows it down to about 5 different major
technologies, 10-15 manufacturers and >100 models, many of which have
special requirements (or aren't supported at all).