Hi,
I have tried to install the new EMC2 on an existing 
installation of Ubuntu 10.04LTS using the .sh script, 
however, I have hiot a problem which i don't quite 
understand. First let me say that the Ubuntu and EMC2 
installation has been upgraded several times and I suspect 
that the problem is caused by my wetware failure in deleting 
things that I shouldn't have - or not deleting things I 
should have......
The EMC2 installation ran to completion but left me with a 
'broken' package - rtai and so EMC2 won't run even in sim 
mode (earlier versions seemed to run the sim modes without 
rtai being installed at all...). When I try to fix the 
broken package using the 'broken' filter on package manager, 
I get the following message...

E: 
/var/cache/apt/archives/rtai-modules-2.6.32-122-rtai_3.8.1-linuxcnc1_386.deb: 
trying to overwrite '/etc/udev/rules.d/99-rtai.rules; which 
is also in package rtai-modules-2.6.31-21-rtai 0

The 99-rtai.rules file contains...

#RTAI: rtai_shm
KERNEL == "rtai_shm", MODE = "0666"
#RTAI: rtai_fifos
KERNEL == "rtf[0-9]*", MODE = "0666"

I'm pretty sure that the 'rtai-modules-2.6.31-21-rtai' has 
been uninstalled at the same time as the 2.6.31-21 kernel - 
when it was upgraded to 2.6.31-22 but I'm not absolutely 
certain.

If I just delete the 99-rtai.rules file will the upgrade to 
rtai-modules-2.6.32-122 automatically create a new file or 
will this break things altogether?

Thanks

Ian
______________________
Ian W Wright
Sheffield  UK


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