How to KILL a process or program ?

il-uvatar · 04-27-2009, 07:16 PM

Hi yiye62:-

You have lost me now. I am a newbie and don't know what a signal handler is. Can you elaborate?

x terminat or 3:- Here is the result of the command:

[root@localhost root]# rpm -qa | grep myth
[root@localhost root]#

(i.e.NOTHING !)

As stated above this is a commercially produced (now unsupported) MythTV box running Mandrake 10.0.
{In case you are wondering, yes it works. The reason for this query is to disable mythbackend so I can modify the sql table for the EPG. Such are the joys of MythTV !! ;-) }

Disillusionist · 04-28-2009, 02:05 AM

Quote:

Originally Posted by x_terminat_or_3

You didn't tell us what distro you are using

Post #5 stated Mandrake 10.0

what happens if you change the grep statement:

Code:

rpm -qa|grep -i myth

Additionally, try:

Code:

cd /etc/init.d
ls -l |grep -i myth

il-uvatar · 04-28-2009, 02:28 AM

OK. Results are:

[root@localhost root]# rpm -qa|grep -i myth
[root@localhost root]#
[root@localhost root]# cd /etc/init.d
[root@localhost init.d]# ls -l |grep -i myth
[root@localhost init.d]#

err............ nothing!

Disillusionist · 04-28-2009, 02:35 AM

OK. Different tack.

From the GUI:

select System;
Expand Administration;
Expand Server Settings;
Select Services

Do you see anything related to myth in the list of services running?

il-uvatar · 05-02-2009, 02:24 AM

Hi Disillusionist ! Sorry about the delay in getting back.

I used the "MandrakeLinux Control Center 10". It is a GUI and takes me to the list of services via a slightly different route (i.e. System > Services).

There appear to be no services visible that have "Myth" in their name !

Very strange indeeed.....

P.S. I got to the GUI with the following:

Ctrl-Alt F1
logged in as root
init 5
logged in again as root
the system fires up XDM

Disillusionist · 05-02-2009, 03:41 AM

I don't suppose there are any entries in the /etc/inittab file relating to myth?

Code:

cat /etc/inittab|grep -i myth

If not, please could you post the complete file, in case we are missing something.

il-uvatar · 05-02-2009, 03:49 AM

As a matter of fact there are ...........

[root@localhost root]# cat /etc/inittab|grep -i myth
mbx:4:respawn:/usr/local/bin/mythbackinit
mfx:4:respawn:/usr/local/bin/mythfrontinit
[root@localhost root]#

So, what does this mean ?

il-uvatar · 05-02-2009, 03:51 AM

BTW Disillusionist, I thank you for your perserverence.

If you could (maybe) write a list of things I could try ? (since I am in Australia and the time zone difference may work for or against us) ;-)

Disillusionist · 05-02-2009, 04:42 AM

OK, now we are cooking

As root:

Code:

cp -p /etc/inittab /etc/inittab.bkup

Then edit the /etc/inittab file and place a # symbol infront of the two myth entries:

Quote:

# mbx:4:respawn:/usr/local/bin/mythbackinit
# mfx:4:respawn:/usr/local/bin/mythfrontinit

Then reboot.

Once you have performed the task that you needed Myth to be shut down for, you can change the files back:

Code:

mv /etc/inittab /etc/inittab.nomyth
mv /etc/inittab.bkup /etc/inittab

Then reboot.

zahidhasan · 05-02-2009, 05:35 AM

Quote:

Originally Posted by il-uvatar

Can someone help me or tell me what I am doing wrong ?

I'm trying to update a database using mysql. I realise that I have to kill a process "mythbackend" in order to do so.

I have tried listing the running processes using "ps -A". I get the following:
[root@localhost root]# ps -A
PID TTY TIME CMD
1 ? 00:00:01 init
2 ? 00:00:00 ksoftirqd/0
3 ? 00:00:00 events/0
4 ? 00:00:00 khelper
5 ? 00:00:00 kacpid
44 ? 00:00:00 kblockd/0
54 ? 00:00:00 vesafb
57 ? 00:00:00 pdflush
58 ? 00:00:00 pdflush
60 ? 00:00:00 aio/0
59 ? 00:00:00 kswapd0
163 ? 00:00:00 kseriod
172 ? 00:00:00 kjournald
387 ? 00:00:00 devfsd
518 ? 00:00:00 khubd
921 ? 00:00:00 kjournald
1810 ? 00:00:00 ifplugd
1895 ? 00:00:00 mysqld_safe
1979 ? 00:00:00 netplugd
1999 ? 00:00:00 mysqld
2029 ? 00:00:00 portmap
2053 ? 00:00:00 syslogd
2061 ? 00:00:00 klogd
2545 ? 00:00:00 xfs
2619 ? 00:00:00 acpid
2661 ? 00:00:00 sshd
2704 ? 00:00:00 xinetd
2995 ? 00:00:00 crond
3021 ? 00:00:00 smbd
3031 ? 00:00:00 nmbd
3181 ? 00:00:00 httpd-perl
3188 ? 00:00:00 advxsplitlogfil
3189 ? 00:00:00 httpd-perl
3190 ? 00:00:00 httpd-perl
3191 ? 00:00:00 httpd-perl
3192 ? 00:00:00 httpd-perl
3326 ? 00:00:00 lircd
3329 ? 00:00:00 lircd2
3359 tty1 00:00:00 mingetty
3366 tty2 00:00:00 mingetty
3367 tty3 00:00:00 mingetty
3368 tty4 00:00:00 mingetty
3369 tty5 00:00:00 mingetty
3370 tty6 00:00:00 mingetty
3530 ? 00:00:00 mythfrontinit
4563 ? 00:00:00 sshd
4565 ? 00:00:00 sftp-server
4579 ? 00:00:00 sshd
4581 pts42 00:00:00 bash
4909 ? 00:00:00 mythbackinit
5117 ? 00:00:00 mythbackend
5118 ? 00:00:00 startx
5129 ? 00:00:00 xinit
5130 ? 00:00:01 X
5131 ? 00:00:01 mythfrontend
5153 ? 00:00:00 kdvb-fe-0:0
5160 ? 00:00:00 sh
5163 ? 00:00:00 irexec
5164 ? 00:00:00 unclutter
5166 ? 00:00:00 sWM
5187 pts42 00:00:00 ps

I then issue the command "kill 5117".

When I list the processes again, it is still there (but with a different PID) !

Then I tried killing both mythbackinit and mythbackend (using their PIDs) and the same thing happened. They keep restaring like the Hydra !!

Can anyone please help?

You can check a particular process by using this command "ps -ef | grep mythbackend". After that it shows a process ID. then kill -9 that ID to kill that process.

Disillusionist · 05-02-2009, 07:59 AM

Quote:

Originally Posted by zahidhasan

You can check a particular process by using this command "ps -ef | grep mythbackend". After that it shows a process ID. then kill -9 that ID to kill that process.

With the process being respawned by init, that wouldn't resolve the issue.