Need Help! Running EMC2

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10 Jan 2010 14:39 #1484 by faran
hello everybody,
I'm new to Linux and Emc2, i install emc2 from live CD. and now i want to install it from source code. it built successfully. when i want to run it, i got this error in terminal:

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





NOTE: when i configure it as simulator (./configure --enable-run-in-place --enable-simulator
) it works correctly

thanks

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10 Jan 2010 19:27 #1485 by cblack
Replied by cblack on topic Re:Need Help! Running EMC2

module_helper is not setuid root


Looks like you forgot the

sudo make setuid

command after compiling and your user doesn't have enough access to load the realtime drivers.

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12 Jan 2010 05:41 #1496 by faran
Replied by faran on topic Re:Need Help! Running EMC2
Dear cblack
I do these commands

$ cd src
$ ./configure --enable-run-in-place
$ make
$ sudo make setuid

after it completes and tell build successfully, when i run emc with this command
cd scripts
./emc

those error will appear in terminal
and if i don't run the last command "$ sudo make setuid" again, these error will appear.
I mean with or without this command i get this error

>>>>>>>>
Starting EMC2...
module_helper is not setuid root
Realtime system did not load
Shutting down and cleaning up EMC2...

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17 Jan 2010 13:10 #1527 by faran
Replied by faran on topic Re:Need Help! Running EMC2
my problem solve. that's for root.
I should use root user

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17 Jan 2010 21:40 #1538 by acemi
Replied by acemi on topic Re:Need Help! Running EMC2
It's not a good idea to run EMC using root account.

Could you give the following command in the EMC src directory again and send the output?

sudo make setuid

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21 Jan 2010 07:06 #1568 by faran
Replied by faran on topic Re:Need Help! Running EMC2
Dear acemi

this is the complete command that i enterd, and the output that i gave

$ cd src
$ ./configure --enable-run-in-place
$make clean
$ make
$ sudo make setuid


my output after enter "sudo make setuid"

>>>>>>>>>>>>>>>>>>>>>
[sudo] password for faran:
chown root ../bin/emc_module_helper
chmod 4750 ../bin/emc_module_helper
chown root ../bin/bfload
chmod 4750 ../bin/bfload
chown root ../bin/pci_write
chmod 4750 ../bin/pci_write
chown root ../bin/pci_read
chmod 4750 ../bin/pci_read
faran@faran-desktop:/media/Faran/Computer/EMC/Run_Emc/emc2-2.3.4/src$
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

and then I enter this command

$cd scripts
$./emc

and my complete output after running emc2 is:


>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
EMC2 - 2.3.4
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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=2)
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
as well as in the output of the shell command 'dmesg' and in the terminal
faran@faran-desktop:/media/Faran/Computer/EMC/Run_Emc/emc2-2.3.4/scripts$
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


and now, in this state, if i enter these command


$sudo su
#./emc

the EMC2 run and and the axis.ngc loaded

and a guestion:
why is't good idea to run EMC using root account?

Thanks for your attention

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21 Jan 2010 08:05 #1570 by acemi
Replied by acemi on topic Re:Need Help! Running EMC2
Hi faran,

Could you send the output for the following commands?

$ ulimit -a
$ cat /etc/security/limits.conf
$ grep rtai /etc/udev/rules.d/*

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21 Jan 2010 10:28 #1575 by acemi
Replied by acemi on topic Re:Need Help! Running EMC2
Is EMC directory in a FAT partition?

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21 Jan 2010 11:13 #1578 by faran
Replied by faran on topic Re:Need Help! Running EMC2
Hi acemi
yes of course

$ ulimit -a[/b]
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
faran@faran-desktop:~/Desktop$ ulimit -a
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 4095
max locked memory (kbytes, -l) 20480
max memory size (kbytes, -m) unlimited
open files (-n) 1024
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) 8192
cpu time (seconds, -t) unlimited
max user processes (-u) 4095
virtual memory (kbytes, -v) unlimited
file locks
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>


$ cat /etc/security/limits.conf
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
faran@faran-desktop:~/Desktop$ cat /etc/security/limits.conf
# /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain> <type> <item> <value>
#
#Where:
#<domain> can be:
# - an user name
# - a group name, with @group syntax
# - the wildcard *, for default entry
# - the wildcard %, can be also used with %group syntax,
# for maxlogin limit
#
#<type> can have the two values:
# - "soft" for enforcing the soft limits
# - "hard" for enforcing hard limits
#
#<item> can be one of the following:
# - core - limits the core file size (KB)
# - data - max data size (KB)
# - fsize - maximum filesize (KB)
# - memlock - max locked-in-memory address space (KB)
# - nofile - max number of open files
# - rss - max resident set size (KB)
# - stack - max stack size (KB)
# - cpu - max CPU time (MIN)
# - nproc - max number of processes
# - as - address space limit
# - maxlogins - max number of logins for this user
# - maxsyslogins - max number of logins on the system
# - priority - the priority to run user process with
# - locks - max number of file locks the user can hold
# - sigpending - max number of pending signals
# - msgqueue - max memory used by POSIX message queues (bytes)
# - nice - max nice priority allowed to raise to
# - rtprio - max realtime priority
# - chroot - change root to directory (Debian-specific)
#
#<domain> <type> <item> <value>
#

#* soft core 0
#* hard rss 10000
#@student hard nproc 20
#@faculty soft nproc 20
#@faculty hard nproc 50
#ftp hard nproc 0
#ftp - chroot /ftp
#@student - maxlogins 4

# End of file
* hard memlock 20480 #EMC2
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

grep rtai /etc/udev/rules.d/*
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
faran@faran-desktop:~/Desktop$ $ grep rtai /etc/udev/rules.d
bash: $: command not found
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

The grep is installed, but when i run your command, the command not found


Is EMC directory in a FAT partition?
No, It is in a NTFS partition

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21 Jan 2010 17:21 #1579 by acemi
Replied by acemi on topic Re:Need Help! Running EMC2

No, It is in a NTFS partition


I think that it is not possible to set user ID bit in NTFS partition. This is for ext2/ext3 partition.Therefore the normal users can not run the program (like module_helper) with root privileges.

If you compile EMC in an ext3 partition, this problem will disappear

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