On 19.05.11 16:12, Rudy du Preez wrote:
Not finding any other way to upload the XYZACkins that I recently developed,
I added a small description to the Wiki under HAL user contributed
components: Kinematics. A link to a tar.gz file is given which contains the
kinematics code as well as the ini and hal files, a vismach simulation model
and a demo ngc file.
Comments will be appreciated once you have tried it out. The remaining
problem I have is the homing and setup to start a job. I am still working on
a solution.
Rudy, I'm having trouble unpacking the tarball, possibly due to the
strangest tarball behaviour I've seen in a quarter of a century.
A tar zxvf 5_axis_kinematics_XYZAC.tar.gz unpacks a symlink in the
current directory, pointing to ../emc2/configs/XYZAC, so unless I
create that directory manually, we have the issue:
XYZAC: broken symbolic link to `../emc2/configs/XYZAC'
OK, I've created ~/emc2/configs/XYZAC/, and now have the errors:
tar: XYZAC/XYZACkins.c: Cannot open: Not a directory
XYZAC/XYZAC_sim.hal
tar: XYZAC/XYZAC_sim.hal: Cannot open: Not a directory
XYZAC/Flange.ngc
etc. So let's check the symlink$ ls -l XYZAC
lrwxrwxrwx 1 erik erik 21 2011-05-23 21:53 XYZAC - ../emc2/configs/XYZAC/
Good, it's pointing to the empty directory I've manually created, to help
things along:
$ ls -alL XYZAC
total 8
drwxr-xr-x 2 erik erik 4096 2011-05-23 21:41 ./
drwxr-xr-x 4 erik erik 4096 2011-05-23 21:41 ../
I have navigate (x) permissions on the intervening directories:
$ ls -ld ~/emc2/
drwxr-xr-x 4 erik erik 4096 2011-04-05 19:44 /home/erik/emc2//
$ ls -ld ~/emc2/configs/
drwxr-xr-x 4 erik erik 4096 2011-05-23 21:41 /home/erik/emc2/configs//
so we can get there. (Well, I did in fact, to create the directory, but it
doesn't hurt to verify.) After digging through the 40 likeliest google hits,
the closest to an explanation I've found was in German:
D.h. im aktuellen Verzeichnis gibt es eine _Datei_ (tar-file) mit dem
Namen res.tar und im tar selbst gibt es ein _Verzeichnis_ mit dem Namen
res.tar.
My translation: I.e. in the current directory there exists a
_File_ (tar-file) with the name res.tar and in tar itself [here he means
the tarball] there is a _Directory_ with the name res.tar.
Comparing your tarball, Rudy, we find it creates a symlink named XYZAC, and the
tarball contains a directory of the same name. Maybe that's the problem?
Would you have a tarball which doesn't create the symlink, so we could
see if that works?
I could then unpack in /tmp, or directly into the configs directory
with:
tar zxvf -C ~/emc2/configs/ 5_axis_kinematics_XYZAC.tar.gz
Erik
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