John Dunn wrote:
> With this computer I normally use a Usb WLAN adapter to get online but I
> believe this has been disabled in EMC2.
>
If the correct driver for this device is available, then it should
work. So, most likely, this
device is too now for the driver to be present. There are tens of
thousands of ethernet
devices out there, the Linux driver maintainers TRY to keep current, but
it is hard. You can
try a very common adaptor, like a 3Com 3C90x device.
> Computer No2 has:
> Athlon 800 MHz processor, 512 MB memory and 20 GB hard drive shared with
> windows XP on seperate partitions. The graphics card is an ATI Rage 128. The
> network card works ok so I can easily update. I have used this computer with
> Ubuntu 7.04, 7.10, 8.04 without any problems to speak of. When I run Ubuntu
> 8.04+EMC2 everything works ok except when I start EMC2 it freezes right away
> before it even finishes drawing the Axis page. The keyboard stops working,
> only the mouse works but the cursor turns solid black and has no effect on
> anything on the desktop and I can only get out of it by turning off or
> resetting the computer
>
The first thing I can think of is the BASE_THREAD is too low on this
machine, eating up all the
available CPU time. Try running the latency test first, just to make
sure that runs OK.
Then, go into the editor and check the value of BASE_THREAD in the .ini
file from the configs directory
you are using. Multiply the value by ten and see if EMC then runs.
Also, check that the glxgears program works, this tests that openGL
programs work.
To edit a file, open the terminal window, cd to the directory of choice,
and type
xedit <filename>
to see what directory you are in, type: pwd
to list files in the current directory, type: ls
to list all attributes of the files, type: ls -al
to move a file from one place to another, or change the file's name: mv
<old file name> <new file name>
to specify a file name from another directory, you can use the ".." to
specify one level above in the file tree,
or directory/filename for one level down in the tree. ../../name means
two levels up in the tree, then file "name".
dir1/dir2/name means down a level in dir1, then down another level in
dir2, then file "name".
to execute a program or script, it needs to have the execute flag set in
the file permissions.
You can set that by using: chmod u+x filename
which sets the executable bit for the user (you) for the "filename".
to execute a program or script in the current directory, you have to
specify it like this :
./program
For more info on Linux, get one of the books at the local Barnes&Noble
or other bookstore.
I have an old one, by Que called "Using Linux", that is pretty good. I
saw a couple others
that I thought weren't worth the paper they were written on.
Jon
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