Re: Emc Help Required

[Stephen Goldsmith <steve-at-paragon.clara.net>]

. The Saga Continues....

When I copied the following file from another emc  release
cp /cnc/emc3/emc/plat/rtlinux_09J/lib/steppermod.o
into my 2_2_19/lib dir and the run ./emc.run

I get the following error....

[root-at-linux plat]# ../emc.run
Current platform is linux_2_2_19
Current real-time platform is 2_2_19
inivar = plat/linux_2_2_19/bin/inivar
INIFILE = emc.ini
starting emc...
/sbin/insmod -f /lib/modules/2.2.19/misc/rtl.o
insmod: a module named rtl already exists
starting EMC MOTION PROGRAM -- steppermod.o...Warning: kernel-module version
mismatch plat/2_2_19/lib/steppermod.o was compiled for kernel version 2.0.36
while this kernel is version 2.2.19

plat/2_2_19/lib/steppermod.o: unresolved symbol vremap
plat/2_2_19/lib/steppermod.o: unresolved symbol rt_task_make_periodic
plat/2_2_19/lib/steppermod.o: unresolved symbol rt_task_delete
plat/2_2_19/lib/steppermod.o: unresolved symbol rtl_set_oneshot_mode
plat/2_2_19/lib/steppermod.o: unresolved symbol rt_task_init
plat/2_2_19/lib/steppermod.o: unresolved symbol rt_task_wait
plat/2_2_19/lib/steppermod.o: unresolved symbol rt_task_use_fp
plat/2_2_19/lib/steppermod.o: unresolved symbol do_rt_get_time
can't install it

Mmmm more info

Regards,

Steve G.


Stephen Goldsmith wrote:

> Will,
>
> Thanks for your prompt reply.
>
> Additional info ....
>
> In the plat dir I only have the dir linux_2_2_19.
> I created an empty dir 2_2_19 in the plat dir and now I have the following
> error ...
>
> [root-at-linux plat]# ../emc.run
> The current real-time platform appears to be 2_2_19 but no directory exists
> for this platform.
> Either install EMC for this platform or create a symbolic link to an
> existing platform.
> [root-at-linux plat]# mkdir 2_2_19
> [root-at-linux plat]# ../emc.run
> Current platform is linux_2_2_19
> Current real-time platform is 2_2_19
> inivar = plat/linux_2_2_19/bin/inivar
> INIFILE = emc.ini
> starting emc...
> /sbin/insmod -f /lib/modules/2.2.19/misc/rtl.o
> insmod: a module named rtl already exists
> starting EMC MOTION PROGRAM -- steppermod.o...plat/2_2_19/lib/steppermod.o:
> plat/2_2_19/lib/steppermod.o: No such file or directory
> can't install it
>
> Do you have any ideas??
>
> Thanks in advance.
>
> Stephen Goldsmith
>
> Will Shackleford wrote:
>
> > Stephen Goldsmith wrote:
> >
> > > Hello All
> > >
> > > Just installed rtlinux-3.0 and this seems to be functioning from the
> > > examples, on a Redhat7 Dist.
> > > The kernel = 2.2.19 (which is less than the original Redhat7 kernel
> > > 2.2.22).
> > >
> > > Downloaded the EMC emc-1.1-17.src.tar
> > > Unpacked it!
> > >
> > > Ran the ./install script which I think succeeded with only minor
> > > warnings.
> > >
> > > When attempting to run ./emc.run I get the following error :
> > >
> > > The current real-time platform appears to be 2_2_19 but no directory
> > > exists for this platform.
> > > Either install EMC for this platform or create a symbolic link to an
> > > existing platform.
> > >
> > >
> > > Any help on this matter would be greatly appreciated before I pull out
> > >  all my hair!
> > >
> > > Also does Emc run on this kernel version and rtlinux3.0 ?
> > >
> > > Regards
> > >
> > > Steve G.
> > >
> > >
> > >
> > >
> > >
> >
> > As I recall the emc.1.1-17 release was made just before RTLinux 3.0
> > final was released. So while some of the porting to 3.0 had been done
> > already using test versions of 3.0 it was really intended for 2.2. We
> > have been running the CVS version of EMC under 3.0 for some time now.
> > The CVS version changes from week to week. So sometimes you can get a
> > reasonably stable system and sometimes it is completely broken.
> >
> > One of the changes from RTL 2.2 to 3.0 was that they dropped the rtl
> > version number from the EXTRAVERSIONINFO flag when building the kernel
> > so uname -s on a RTL 2.2 system says something like 2.2.14-rtl2.2 but on
> > a 3.0 system something like 2.2.14-rtl. This confused the bash script
> > emc.run that tries to determine the rtlinux version number.
> >
> > The new bash script doesn't use uname any more, it either gets it out of
> > a file or asks the user if the file doesn't exist.
> >
> > One workaround you could try would be to do this
> >
> > cd emc/plat
> > ln -s rtlinux_3_0 2_2_19
> >
> > -- Will
> >
> > --
> > ---------------------------------------------------------------
> > William Penn Shackleford III                    shackle-at-nist.gov
> > National Institute of Standards & Technology    Tel:    (301) 975-4286
> > 100 Bureau Drive Stop 8230                      FAX:    (301) 990-9688
> > Gaithersburg MD  20899  USA
> > http://www.isd.mel.nist.gov/personnel/shackleford/
> > Office Location: Bldg. 220 Rm A253