Dear Grass Users:
I've run in to a bit of a snag in running grass4.0 d.mon commands at our
site, and am looking for any suggestions as to how to rectify the
problem.When i try to start a graphics monitor ie. d.mon start=x1 i receive an
error message that the system can't find the fifo.a1 and that i should
check the etc/monitorcap file.The monitorcap file exist and the first entry in it specifies
grass4.0/dev/fifo.a1 as a device driver (this seems ok)However when i search the directory /grass4.0/dev there are no files
present. Our system administrator believes someone has accidentally
deleted some files from here and this is the cause of the problem.Questions:
1. Is this correct must i have a fifo.1a file in my grass4.0/dev
directory?
Yes, you must have the fifo.1a and fifo.1b files in the directory
listed in the monitorcap. The are pipes not just normal files.
2. If unable to retrive one from backups made of grass directorieswhere
can i get this file ?
If you use cpio for tape backups then do not retrieve them from the
backup. They will not work.
Any advice/suggestions would be appreciated greatly.
goajf@blaze.trentu.ca
cd grass4.0/dev
as the owner of software or as root:
mknod fifo.1a p
mknod fifo.1b p
chmod 666 fifo.1?
repeat mknod/chmod process for as many monitors as you want to use
that are listed in the monitorcap file (grass4.0/etc/monitorcap).
Ken Sibley
USDA-NRCS/NCG "Hell, if you understand everything I say,
ksibley@ncg.scs.ag.gov you'd be me!" - Miles Davis
effective Dec. 16: ksibley@ncg.nrcs.usda.gov