How to , and other stuff about linux, photo, php … A linux, photography blog. To remember some linux situation, and fix them quickly.

May 21, 2012

How to disable from console “Ubuntu 12.04 has experienced an internal error” message

Filed under: Linux — Tags: , , , , , , — admin @ 3:06 pm

Well this appear on lates lubuntu, and on latest Ubuntu. After a time this error is showing up on monitor.
So how to fix this ?
Sorry, Ubuntu 12.04 has experienced an internal error
This error is reported by apport service on ubuntu.
So to disable it just edit /etc/default/apport and modify the value of enable from 1 to 0

sudo vi /etc/default/apport

After modification the file should look something like this

# set this to 0 to disable apport, or to 1 to enable it
# you can temporarily override this with
# sudo service apport start force_start=1
enabled=0

Error “Xext not found”

Filed under: Linux — Tags: , , , , — admin @ 3:01 pm

Well today I was trying to upgrade a ffmpeg on a server with libspeex / x264 / faac / librtpm .
Everything was ok until I have this error
Error “Xext not found”
So how to fix this ?
yum install libXext-devel
is the solution for this problem.

After this I encountered another problem
ERROR: Xfixes not found
the fix for this is
yum install libXfixes-devel
This fixex are for Centos

May 18, 2012

How to start X program from cron

Filed under: Linux — Tags: , , , — admin @ 1:29 pm

Hello

Well today I have to make a little script that close a chromium erase the cache and start it again.

Bellow is the script


#!/bin/bash
ps aux|grep 'chromium-browser'|awk {'print $2'}|xargs kill -9
/bin/rm -rf /home/user/.cache/chromium
/bin/sed -i 's/"exited_cleanly": false/"exited_cleanly": true/' /home/user/.config/chromium/Default/Preferences
DISPLAY=:0 /usr/bin/nohup /usr/bin/chromium-browser  &

If you will have something like

No protocol specified Can't open display :0

First of all check if you are runing the script as  user . Because if you are root won’t work.

April 23, 2012

Invalid command “SSLEngine”, perhaps misspelled or defined by a module not included in the server configuration

Filed under: Linux — Tags: , , , , — admin @ 3:53 pm

If you have bellow error you should install mod_ssl
“Invalid command “SSLEngine”, perhaps misspelled or defined by a module not included in the server configuration”
The error message indicates that the module mod_ssl required to run SSL engine on a CentOS server is missing and needs to be installed.
Install the mod_ssl module using yum
yum install mod_ssl
Once it is installed, make sure to restart the Apache service
service httpd restart

April 20, 2012

s3fs and centos 6.2

Filed under: Linux — Tags: , , — admin @ 2:35 pm

Well today I was trying to install s3fs on a centos 6.2 server . So first of all I try this
yum install gcc libstdc++-devel gcc-c++ curl-devel libxml2-devel openssl-devel mailcap fuse fuse-devel
wget http://s3fs.googlecode.com/files/s3fs-1.61.tar.gz
tar xvzf s3fs-1.61.tar.gz
cd s3fs-1.61/
./configure --prefix=/usr
make
make install
However the configure wasn’t working because of fuse version. I have installed 2.8.3 and I need 2.8.4

So the solution was to recompile the fuse also
yum remove fuse fuse* fuse-devel
yum install gcc libstdc++-devel gcc-c++ curl curl* curl-devel libxml2 libxml2* libxml2-devel openssl-devel mailcap
cd /usr/local/src
wget "https://downloads.sourceforge.net/project/fuse/fuse-2.X/2.8.4/fuse-2.8.4.tar.gz?r=&ts=1299709935&use_mirror=cdnetworks-us-1"
tar -xzvf fuse-2.8.4.tar.gz
rm fuse-2.8.4.tar.gz
mv fuse-2.8.4 fuse
cd fuse/
./configure --prefix=/usr
make
make install
export PKG_CONFIG_PATH=/usr/lib/pkgconfig:/usr/lib64/pkgconfig/
ldconfig
modprobe fuse
pkg-config --modversion fuse (confirm that 2.8.4 is the version displayed)
cd ../
cd s3fs-1.61/
./configure --prefix=/usr
make
make install

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