Please help: Running EMC2

[faran]

Hi every body
I have Ubuntu 8.4 and install emc2 form live CD successfully. now i want to install emc2 from source code but i have some problems.
I can configure and build emc2 successfully, but when i run emc2, i see these errors in terminal:
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
Machine configuration directory is '/home/faran/emc2/configs/stepper'

Machine configuration file is 'stepper_mm.ini'

Starting EMC2...

module_helper is not setuid root

Realtime system did not load

Shutting down and cleaning up EMC2...

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

RTAPI: ERROR: could not open shared memory (errno=13)

HAL: ERROR: rtapi init failed

halcmd: hal_init() failed: -9

NOTE: 'rtapi' kernel module must be loaded

module_helper is not setuid root

module_helper is not setuid root

module_helper is not setuid root

module_helper is not setuid root

module_helper is not setuid root

module_helper is not setuid root

module_helper is not setuid root

Cleanup done

EMC terminated with an error. You can find more information in the log:

/home/faran/emc_debug.txt

and

/home/faran/emc_print.txt
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

please tell me what should i do?

[mauve_alert]

Originally Posted by faran I have Ubuntu 8.4 and install emc2 form live CD successfully. now i want to install emc2 from source code but i have some problems.

Hello Faran. Recently I installed emc2 from source on debian, so these error messages look familiar.

Originally Posted by faran please tell me what should i do?

Jump up and down? Usually works for me.

If jumping doesn't do it for you, did you do a setuid root? Because the first message you get after starting it says:

Originally Posted by faran Starting EMC2... module_helper is not setuid root

A quick quick check would be to go to your emc2 source dir and do a "sudo make setuid" and see if that fixes things. If not, here is a good list of instructions to help in building from source.

good luck!
Fred

[faran]

Dear mauve_alert
thanks for your attention

but i run these commands
---------------------------------------
$ cd src
$ ./configure --enable-run-in-place
$ make
$ sudo make setuid
-----------------------------------------
and after build successfully, when i run emc i gave those errors

in addition, i can run it without any problem in simulator mode
----------------------
./configure --enable-run-in-place --enable-simulator

[mauve_alert]

Hello faran,

The "module_helper is not setuid root" message is still somewhat suspicious. Not sure if that is just a misleading error message, but best be sure and try to run emc as root (no sudo or setuid) and see if that works.

~/emc2/src/ % su -
~/emc2/src/# . scripts/emc-environment
~/emc2/src/# emc

If that still gives you the exact same errors I have a couple of questions:

• what kernel version are you using?
• which rtai version are you using?
• did you build your own kernel or a prebuilt one?
• what kind of latency do you get when you run the rtai latency test?

I ask since I am wondering if you have RTAI configured correctly ...

hope that helps,
Fred

[faran]

Originally Posted by mauve_alert Hello faran, The "module_helper is not setuid root" message is still somewhat suspicious. Not sure if that is just a misleading error message, but best be sure and try to run emc as root (no sudo or setuid) and see if that works. ~/emc2/src/ % su - ~/emc2/src/# . scripts/emc-environment ~/emc2/src/# emc If that still gives you the exact same errors I have a couple of questions: what kernel version are you using? which rtai version are you using? did you build your own kernel or a prebuilt one? what kind of latency do you get when you run the rtai latency test? I ask since I am wondering if you have RTAI configured correctly ... hope that helps, Fred

Dear Fred

your guidance help me. the EMC2 runs without any problem

thanks a lot
good luck

[mauve_alert]

Hello faran,

Glad to hear you've got it working. Was it just a matter of running it as root? Could you maybe give a short description of what it was that made it work? That way the next guy who runs into the same problem can use this information.

Anyways good luck with your working emc install!
Fred

[faran]

Hi Fred
Sorry for delay.

Was it just a matter of running it as root? Could you maybe give a short description of what it was that made it work?

yes of course, it's just for root.
I enter what you say about su

~/emc2/src/ % su -

It wanted password, but when i entered my password, it told failure
and then tried this command
sudo su
and entered may pass, and it worked!!! and then I can work as a root user. so I run emc.

again thanks for your help. really I did not know how can i run emc.

good luck