incron doesn't work after rebooting

[tezer]

Hi
I have a problem with the incron: after I restart my computer it doesn't work. I have to run: incrontab -d to start it moving.
The service must be running ok (/etc/init.d/incron exists)
Do you have any idea what's wrong?
Thanks in advance.
PS I run Mint 6 which is almost the same as Ububntu 8.10

[pennacook]

I would recommend checking if it is listed in /etc/rc2.d or /etc/rc3.d, symlinked from init.d with an S## similar to below:


lrwxrwxrwx 1 root root 16 May 23 2008 S56xinetd -> ../init.d/xinetd

This will ensure that the service starts on boot.

[tezer]

Thank you. I will try this.
There is an update to the problem description:

if I do


sudo /etc/init.d/incron start

nothing happens (it still doesn't work)

but


sudo /etc/init.d/incron restart

makes it work.

What might it be? Does incron hang up somehow?

[pennacook]

can you post the incron script that is init.d? Strange that it starts on a restart, but not with start.

[tezer]

This is the /etc/init.d/incron script. I never edited it.


#! /bin/sh
#
# incron This init.d script is used to start incron
#

### BEGIN INIT INFO
# Provides: incron
# Required-Start: $local_fs $syslog
# Required-Stop: $local_fs $syslog
# Should-Start:
# Should-Stop:
# Default-Start: S 2 3 4 5
# Default-Stop: 0 6
# Short-Description: File system events scheduler
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
INCROND=/usr/sbin/incrond
NAME=incron
DESC="File system events scheduler"
INCROND_PID=/var/run/incrond.pid
INCROND_CONF=/etc/incron.conf

[ -x $INCROND ] || exit 0

# loading lsb functions
. /lib/lsb/init-functions

case "$1" in
start)
log_daemon_msg "Starting $DESC"
log_progress_msg "$NAME"
start_daemon -p $INCROND_PID $INCROND -f $INCROND_CONF
log_end_msg "$?"
;;

stop)
log_daemon_msg "Stopping $DESC"
log_progress_msg "$NAME"
killproc -p $INCROND_PID $INCROND
log_end_msg "$?"
;;

reload)
log_daemon_msg "Reloading $DESC"
log_progress_msg "$NAME"
echo -n
log_end_msg "$?"
;;

restart|force-reload)
$0 stop
sleep 1
$0 start
;;

*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
exit 1
;;
esac

exit 0

[tezer]

I had a look at my syslog.
There is no any incron related lines after a start of the system.
sudo /etc/init.d/incron start also generates no lines with incron.

After sudo /etc/init.d/incron restart
I found:

Mar 16 18:32:45 desktop incrond[3966]: stopping service
Mar 16 18:32:46 desktop incrond[8679]: starting service (version 0.5.7, built on Oct 30 2007 05:35:47)
Mar 16 18:32:46 desktop incrond[8680]: loading system tables
Mar 16 18:32:46 desktop incrond[8680]: loading user tables
Mar 16 18:32:46 desktop incrond[8680]: loading table for user username
Mar 16 18:32:46 desktop incrond[8680]: cannot create watch for user username: (16) Device or resource busy
Mar 16 18:32:46 desktop incrond[8680]: ready to process filesystem events

[tezer]

If it is not possible to find what the problem is, where should I put the restart command to run it automatically every time I boot?

[tezer]

I would recommend checking if it is listed in /etc/rc2.d or /etc/rc3.d, symlinked from init.d with an S## similar to below:


lrwxrwxrwx 1 root root 16 May 23 2008 S56xinetd -> ../init.d/xinetd

This will ensure that the service starts on boot.

Yes, it's listed in /etc/rc2.d and in /etc/rc3.d as S20incron

[tezer]

Any ideas?
Please!

[tezer]

The output of sudo update-rc.d -f incron defaults is:
System startup links for /etc/init.d/incron already exist.

I checked /var/run and found incrond.pid, deleted it rebooted, but it still doesn't work.
Tried sudo /etc/init.d/incron stop and incrond.pid disappeared.
After sudo /etc/init.d/incron start I can see incrond.pid again and incrontab started working ok.
I can't understand why it doesn't work right from the beginning.

[pennacook]

maybe add a set -x at the top of your incron startup script so that it logs what all it is doing on reboot. Quite strange that it would start from command line with start, but not on boot.

[tezer]

maybe add a set -x at the top of your incron startup script so that it logs what all it is doing on reboot.
Could you indicate the exact place where (and what exactly) I should put? The script file is on the previous page.
Thank you.

[pennacook]

#! /bin/sh
set -x
#
# incron This init.d script is used to start incron
#

### BEGIN INIT INFO
# Provides: incron
# Required-Start: $local_fs $syslog
# Required-Stop: $local_fs $syslog
# Should-Start:
# Should-Stop:
# Default-Start: S 2 3 4 5
# Default-Stop: 0 6
# Short-Description: File system events scheduler
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin
INCROND=/usr/sbin/incrond
NAME=incron
DESC="File system events scheduler"
INCROND_PID=/var/run/incrond.pid
INCROND_CONF=/etc/incron.conf

[ -x $INCROND ] || exit 0

# loading lsb functions
. /lib/lsb/init-functions

case "$1" in
start)
log_daemon_msg "Starting $DESC"
log_progress_msg "$NAME"
start_daemon -p $INCROND_PID $INCROND -f $INCROND_CONF
log_end_msg "$?"
;;

stop)
log_daemon_msg "Stopping $DESC"
log_progress_msg "$NAME"
killproc -p $INCROND_PID $INCROND
log_end_msg "$?"
;;

reload)
log_daemon_msg "Reloading $DESC"
log_progress_msg "$NAME"
echo -n
log_end_msg "$?"
;;

restart|force-reload)
$0 stop
sleep 1
$0 start
;;

*)
N=/etc/init.d/$NAME
echo "Usage: $N {start|stop|restart|reload|force-reload}" >&2
exit 1
;;
esac

exit 0

[tezer]

Thank you.
I did as you said, restarted the computer, and looked into /var/log/syslog
There is NOTHING about incrond.
ps aux|grep incron|grep -v grep shows that the daemon started:

root 3956 0.0 0.0 3276 1180 ? Ss 13:29 0:00 /usr/sbin/incrond -f /etc/incron.conf

Is there any other log that I should look into?
after I restarted (incrontab -d) I found in the log (User is my account):


Mar 18 13:41:33 desktop incrond[3956]: table for user User changed, reloading
Mar 18 13:41:33 desktop incrond[3956]: cannot create watch for user User: (16) Device or resource busy
Mar 18 13:41:37 desktop incrond[3956]: (User) CMD (unison Notecase -batch)

[pennacook]

Then it is running as expected from your output of ps. If you want it to run with the "-d", you would need to change the start portion to run it as such.

[tezer]

If you want it to run with the "-d", you would need to change the start portion to run it as such.
"-d" means restart. But the question is why it does not start properly and needs restarting to run.

[pennacook]

I would recommend going to 0.5.8. I did find some other references out in the wild about 0.5.7 having bugs where it wouldn't daemonize on initial start.

[tezer]

I would recommend going to 0.5.8. I did find some other references out in the wild about 0.5.7 having bugs where it wouldn't daemonize on initial start.

Thank you. But I failed to compile the source:
Tried ./config:


bash: ./configure: No such file or directory

Tried make:


g++ -c -O2 -g0 -Wall -pipe -o icd-main.o icd-main.cpp
make: g++: Command not found
make: *** [icd-main.o] Error 127


SUDO doesn't change anything

I searched internet for the error explanation but found nothing...

[pennacook]

It doesn't come with a configure script. You should be able to compile using gcc. Edit your Makefile to change the following to gcc (assuming you have gcc installed).


CXX = g++

Then run your make, etc.