Kde : PackageKit and Proxy

If use PackageKit and you have a proxy, you have to modify a config file :

sudo vi /etc/PackageKit/PackageKit.conf
ProxyHTTP=proxy.XXX:8080

That's all ! Now you can use PackageKit with a proxy.

Ubuntu : Installation firefox and proxy

Install of firefox under ubuntu is easy.You just have to do :

sudo apt-get install firefox
 
Note : You have to be careful when you write you proxy in the firefox configuration screen.Don't write the http or else it doesn't works !

Kubuntu 9.1

Bonjour à tous !

En ce moment au travail, j'utilise Kubuntu 9.1.Par conséquent, je mettrai quelques articles sur les problème que je rencontre dans la rubrique Ubuntu.

KDE best shortcuts : Grid View

I learn KDE4 shortcuts and I found one very very cool : It 's the grid view : CTRL + F8, CTRL + F9, CTRL + F10.With theses shortcuts, you can see all you desktop in on view, all you windows in one view !
So try it now !

Su command permission denied

If you write su with the good password on your terminal and you have always the error "permission denied".It's probably because you user have not the group wheel.
So the only thing you have to do is :

gpassw -a user wheel

Why ?

The wheel group is a group which limits the number of people who are able to su to root. This usually consists of a group named “wheel” and a set of users that are permitted to use the utility ’su’ in order to change to root.

User Help on KDE4

To find help about use of KDE 4 you can use the manual.It will show you important link.
For examples, you can see the kde's wiki : wiki

Failed to emerge www-client/chromium-5.0.307.9

Problem

During update, I have the following problem :

>> Emerging (3 of 7) www-client/chromium-5.0.307.9
 * Fetching files in the background. To view fetch progress, run
 * `tail -f /var/log/emerge-fetch.log` in another terminal.
 * chromium-5.0.307.9.tar.bz2 RMD160 SHA1 SHA256 size ;-) ...            [ ok ]
 * checking ebuild checksums ;-) ...                                     [ ok ]
 * checking auxfile checksums ;-) ...                                    [ ok ]
 * checking miscfile checksums ;-) ...                                   [ ok ]
 * CPV:  www-client/chromium-5.0.307.9
 * REPO: gentoo
 * USE:  elibc_glibc ffmpeg kernel_linux plugins-symlink userland_GNU x86
 * /dev/shm does not have correct permissions.
 * chromium isn't going to work in that configuration.
 * Please run chmod 1777 /dev/shm and try again.
 * ERROR: www-client/chromium-5.0.307.9 failed:
 *   /dev/shm has incorrect permissions
 *
 * Call stack:
 *                   ebuild.sh, line  54:  Called pkg_setup
 *   chromium-5.0.307.9.ebuild, line  56:  Called die
 * The specific snippet of code:
 *              die "/dev/shm has incorrect permissions"
 *
 * If you need support, post the output of 'emerge --info =www-client/chromium-5.0.307.9',
 * the complete build log and the output of 'emerge -pqv =www-client/chromium-5.0.307.9'.
 * The complete build log is located at '/var/tmp/portage/www-client/chromium-5.0.307.9/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/www-client/chromium-5.0.307.9/temp/die.env'.
 * S: '/var/tmp/portage/www-client/chromium-5.0.307.9/work/chromium-5.0.307.9'

Solution

The solution is simple but when you begin it's not always easy to see the solution.You just have to read what is write on the screen :

chmod 1777 /dev/shm
emerge -u world