[GRASS-user] Running GRASS with modules

[Markus Metz]

On Tue, Feb 5, 2019 at 5:20 PM Luí­s Moreira de Sousa <
luis.de.sousa at protonmail.ch> wrote:
>
>
>
> Hi Markus,
>
> thank you for the reply. As you can see from the initial message, GRASS
throws the exception even before verifying if a location/mapset binome was
passed as argument or if it exists. The same exception is thrown with a
valid mapset passed as argument. Also, GRASS exits orderly when it does not
have permissions to access the given mapset.

Looking at the initial message, the error eccurs after
Cleaning up temporary files...

that means a location and mapset have already been established, probably
the last used.

Maybe the permissions for $GISBASE/etc/clean_temp are not correct?

$GISBASE is apparently /cm/shared/apps/WUR/ESG/modules/grass/

Unfortunately the error "Permission denied" does not tell which permission,
execute, read, write?

Markus M

>
> Whatever is causing this exception it must be happening in the early
start up of GRASS.
>
> Thank you.
>
> --
> Luís Moreira de Sousa
> RingID: ring:7ca91d83f4f9dec82fec9f1144b8e5c1ef2a110c
> URL: https://ldesousa.github.io
>
> Sent with ProtonMail Secure Email.
>
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Tuesday, 5 February 2019 14:50, Markus Metz <
markus.metz.giswork at gmail.com> wrote:
>
>
>
> On Tue, Feb 5, 2019 at 11:54 AM Luí­s Moreira de Sousa <
luis.de.sousa at protonmail.ch> wrote:
> >
> > Dear all,
> >
> > I am using GRASS in an HPC platform where libraries are managed with
modules [0]. Recently I made GRASS 7.6 available as a shared module. This
involved copying the compiled folder to a shared location and then creating
a modulefile [1] (which essentially sets the correct PATH environment
variable). I am able to load the GRASS module and run it; however, when
other users try to do the same they get this error:
>
> Are other users trying to work in your mapset? This is not allowed, a
user must be owner of the mapset. Users can read data from other mapsets
owned by other users, but the current mapset must be owned by the current
user.
>
> A new mapset can be created on startup with
> grass76 -c /path/to/new_mapset
>
> this will create the folder "new_mapset" and populate it with some basic
files neede to recognize this folder as a GRASS mapset. Now you can read
data from already existing mapsets in the same GRASS database and location.
>
> HTH,
>
> Markus M
>
> >
> > $ grass76
> > Cleaning up temporary files...
> > Traceback (most recent call last):
> >   File "/cm/shared/apps/WUR/ESG/modules/grass/bin/grass76", line 2209,
in <module>
> >     main()
> >   File "/cm/shared/apps/WUR/ESG/modules/grass/bin/grass76", line 2087,
in main
> >     clean_temp()
> >   File "/cm/shared/apps/WUR/ESG/modules/grass/bin/grass76", line 1784,
in clean_temp
> >     call([gpath("etc", "clean_temp")], stdout=nul)
> >   File "/cm/shared/apps/WUR/ESG/modules/grass/bin/grass76", line 247,
in call
> >     return subprocess.call(cmd, **kwargs)
> >   File "/usr/lib64/python2.7/subprocess.py", line 524, in call
> >     return Popen(*popenargs, **kwargs).wait()
> >   File "/usr/lib64/python2.7/subprocess.py", line 711, in __init__
> >     errread, errwrite)
> >   File "/usr/lib64/python2.7/subprocess.py", line 1327, in
_execute_child
> >     raise child_exception
> > OSError: [Errno 13] Permission denied
> >
> > Naturally, GRASS is unable to access some asset it needs, the question
is what? All users have read and execute permissions on the shared module
folders and files. When it is launched, is GRASS trying to write somewhere?
Which other assets GRASS needs to read when it is launched?
> >
> > Thank you.
> >
> > [0] http://modules.sourceforge.net/
> > [1] https://modules.readthedocs.io/en/latest/modulefile.html
> > --
> > Luís Moreira de Sousa
> > RingID: ring:7ca91d83f4f9dec82fec9f1144b8e5c1ef2a110c
> > URL: https://ldesousa.github.io
> >
> > Sent with ProtonMail Secure Email.
> >
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>
>
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