5.0beta8 bin directory read/write permissions?

[David Finlayson]

I have a binary install of 5.0beta8 installed to
/usr/local/grass-5.0b on a Debian potato linux box. 
This directory is not writable (except by root).  I
just tried to run r.watershed and it failed with the
following message:

SECTION 1 beginning: Initiating Variables. 6 sections
total
    segments in row:	622
segments in columns:	277
     total segments:	172294
      open segments:	213
WARNING: No such file or directory
WARNING: seg_open(): could not write segment file

ERROR: <</usr/local/grass-5.0b/etc/water/seg
el="elv at elwha" t=1000000
       ba="basins" ac="flowacc" se="streams"
ha="halfbasin" di="flowdisp"
       S="steepness" r=0 ms=150>> command line failed

It appears that it tried to write into /usr . Do I
need to move the grass binaries to a directory where
it can write to itself?

g.manual also fails due to a permission problem.  Is
this related?

Thanks for any help you can give

David Finlayson

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