Well I have installed avast anti virus on Ubuntu 12.04. But after updating, it crashes! So I have made some tweaks like below:

1) I pressed press Ctrl+Alt+T and opened Terminal. When it opened, I ran the command below.

sudo gedit /etc/init.d/rcS

2) typed my password and hit enter

3) when the text file opens add the line:

sysctl -w kernel.shmmax=128000000

4) made sure the line you added is before:

exec /etc/init.d/rc S

5) This is how it should look like:

Code:

#! /bin/sh

# rcS

#
# Call all S??* scripts in /etc/rcS.d/ in numerical/alphabetical order
#

sysctl -w kernel.shmmax=128000000

exec /etc/init.d/rc S

6) save it

7) Reboot

My question is. Did I do anything wrong. I mean as I have made some tweaks,will it lower the security of avast down like viruses do! Please if you are a programmer check this if it contains bug or harmful intentions...Thanks.