TotalGentooUs

Sound card Intel Corporation 82801JI configuration

2011-08-19T11:20:00.000-07:00

Sound card model :

lspci -v | grep -i audio
00:1b.0 Audio device: Intel Corporation 82801JI (ICH10 Family) HD Audio Controller

Kernel 's configuration :

Device Drivers
---> Sound card support
(Assurez-vous qu'OSS est désactivé.)
---> Open Sound System   --->
   < > Open Sound System (DEPRECATED)

---> Advanced Linux Sound Architecture --->
   Sequencer support
    OSS Mixer API
[*]     OSS PCM (digital audio) API - Include plugin system (NEW)

Configuration of make.conf

/etc/make.conf : USE doit contenir alsa

Configuration of alsa.conf

/etc/modprobe.d/alsa.conf
options snd-hda-intel index=0

Configuration of language

2011-08-12T11:08:00.000-07:00

There is two files you have to change :

vi /etc/locale.gen

You have to enable the language you choose by removing the #:

fr_FR@euro ISO-8859-15

vi /etc/conf.d/keymaps

KEYMAP="fr"
SET_WINDOWKEYS="yes"

KDE 4.6.3

2011-08-09T11:32:00.000-07:00

I installed KDE 4.6.3 with no problem.
To see which version of KDE is installed you can type the following command :

kded4 --version

ASUS P5Q PRO : configuration of Ethernet card

2011-08-08T03:55:00.000-07:00

I use an ethernet card integrated of the ASUS P5Q PRO mother board.

To identify my ethernet card, I did :

lspci | grep Ethernet

02:00.0 Ethernet controller: Attansic Technology Corp. Atheros AR8121/AR8113/AR8114 PCI-E Ethernet Controller (rev b0)

In my kernel, I check the following :

[*] Network device support --->
[*]   Ethernet (10 or 100Mbit) --->    Atheros L2 Fast Ethernet support
[*]   Ethernet (1000 Mbit) --->    Atheros L1E Gigabit Ethernet support (EXPERIMENTAL)
[*]   Ethernet (10000 Mbit) --->

After that, I modify the following in my configuration :

hostname

vi /etc/conf.d/hostname
HOSTNAME="damitux"

Configuration of eth0 (DHCP)

touch /etc/conf.d/net.eth0
vi /etc/conf.d/net.eth0

config_eth0=( "dhcp" )
dhcp_eth0="nodns nontp nonis"

cd /etc/init.d/
ln -sfn net.lo net.eth0
rc-update add net.eth0 default

DHCP

emerge dhcpcd

My configuration !

2011-08-08T03:47:00.000-07:00

Hi all,

I decided to put articles on my Gentoo configuration ! I wish it will help you and I wish you will post comments about better configuration.

Maven 3 on Ubuntu

2011-08-06T10:24:00.000-07:00

I install Maven 3 on Ubuntu by following this link :

http://lukieb.wordpress.com/2011/02/15/installing-maven-3-on-ubuntu-10-04-lts-server/

Note : I have to uninstall Maven 2 and after it works.

Gentoo on VirtualBox

2011-08-02T05:43:00.001-07:00

To install Gentoo on VirtualBox, there is a good tutorial :

http://rmtheis.wordpress.com/2011/03/14/gentoo-x86-linux-installation-on-a-virtualbox-image/

Some notes :

- Ethernet card :

Be sure to choose the same card for your kernel and your VirtualBox.(Me I didn't choose to make the install with Genkernel)

- Partition /boot :

Don't put ext2 in the /etc/fstab file.It's better to put ext3 else if you should have problems by executing mount /boot/.Me I had the following error : unknow filesystem ext2.

So to convert ext2 -> ext2 I have to do (cf http://www.linuxquestions.org/questions/linux-general-1/possible-to-convert-ext2-to-ext3-266806/):

* Log in as root
* Make sure /etc/fstab has /dev/hda10 mounted to /test as ext2, read write
* umount /dev/hda10
o If you can't unmount it, then remount it read only (mount -o remount,rw /dev/hda10)
* tune2fs -j /dev/hda10
* Edit /etc/fstab, and for /dev/hda10, change ext2 to ext3
* mount /dev/hda10
* /sbin/shutdown -h now
* mount | grep /dev/hda10
o If it's not shown as ext3, reboot, if still not, troubleshoot
o Otherwise, you're done.

The more simple is that you choose directly ext3 :

/dev/sda1   /boot        ext3    defaults,noatime     1 2

/dev/sda2   none         swap    sw                   0 0

/dev/sda3   /            ext3    noatime              0 1

Notes : TODO ext4

How to set Keyboard in French in console

2011-08-02T04:53:00.001-07:00

If you want to set temporaly the keyboard in french :

loadkeys fr

Network problem : No ipv6 routers

2010-11-30T09:36:00.000-08:00

Problem :

I start my computer and i can't connect to internet.
However, if I did : /sbin/ifconfig, I had an ip correct.
I checked the /var/log/messages and I found that message :

kernel No ipv6 routers

Solution :

I desactivate ipv6 by adding the following line : alias net-pf-10 off
in the file /etc/modprobe.conf.

Boinc on Gentoo

2010-11-15T05:01:00.000-08:00

I) Installation :

I installed Boinc 6.10.58-r1 :

emerge sci-misc/boinc

I hava no problem with installation but when I execute Boinc, I had some errors (Buffer OverFlow).I searched on the net but I found no answer at my problem.
So for running Boinc on my computer, I went on Bionc Web Site : (http://boinc.berkeley.edu/download_all.php)
I downloaded ./boinc_6.10.58_i686-pc-linux-gnu.sh.
Then I copied as root in /opt/

chmod +x ./boinc_6.10.58_i686-pc-linux-gnu.sh

./boinc_6.10.58_i686-pc-linux-gnu.sh

cd /opt/Boinc/

./run_manager

II) Boinc as a service

If you want install Boinc as a service, see this link : service

ASUSP5Q PRO : network configuration

2010-07-04T08:43:00.000-07:00

If you want that your network work with ASUSP5Q PRO, you have to do the following in your kernel configuration :

make menuconfig
Device Drivers -> Network Device Support -> Ethernet (1000 Mbits) and check Atheros L1E Gigabits Ethernet Support

mount boot unknown filesystem type 'ext2'

2010-04-10T04:36:00.000-07:00

Problem :

When I execute : mount /boot/, I have the following :
mount: unknown filesystem type 'ext2'

In my /etc/fstab, I have :

/dev/sda1 /boot ext2 defaults 1 2

Solution :

Add a journal to /dev/sda1 :

tune2fs -O has_journal /dev/sda1

Then modify ext2 en ext3 in /etc/fstab.

/dev/sda1 /boot ext3 defaults 1 2

So, now you can make a mount : mount /boot

Link : Solution

Install Google Chrome on Ubuntu 9.10

2010-04-03T04:04:00.000-07:00

I've found a post about installing Chrome on Ubuntu.I test it and it works ! So I put it here :

November 2nd, 2009
This post was written when Chrome was still not available for Linux. Chromium was the only option then. Now that Google Chrome is available, just go to Google's website and download the browser directly.

Add to your sources list.
$ sudo gedit /etc/apt/sources.list
deb http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main
deb-src http://ppa.launchpad.net/chromium-daily/ppa/ubuntu karmic main
You may substitute jaunty, intrepid, hoary for other distributions.

Add the GPG keys.(all in one line)
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 0xfbef0d696de1c72ba5a835fe5a9bf3bb4e5e17b5

Run an update.
sudo apt-get update

Finally, install Google Chrome.
sudo apt-get install chromium-browser

Kde : PackageKit and Proxy

2010-03-30T03:47:00.000-07:00

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

2010-03-27T03:56:00.000-07:00

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

2010-03-23T22:31:00.000-07:00

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

2010-03-20T12:11:00.000-07:00

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

2010-03-13T14:18:00.000-08:00

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

2010-03-08T12:05:00.000-08:00

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

2010-03-06T14:46:00.000-08:00

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

Linux 2.6.33 released !

2010-02-27T03:19:00.000-08:00

New linux kernel version : Annonce
If you want to have more details see : survey

blocks poppler 0.10.7

2010-02-27T03:12:00.000-08:00

I make an update of my gentoo and I have the following message that is blocking my update :

ebuild N ] app-text/poppler-0.12.3-r3 USE="abiword cairo jpeg lcms png qt4 utils xpdf-headers -cjk -debug -doc -exceptions -jpeg2k"

[uninstall ] app-text/poppler-utils-0.10.7

[blocks b ] app-text/poppler-utils ("app-text/poppler-utils" is blocking app-text/poppler-0.12.3-r3)

[uninstall ] dev-libs/poppler-0.10.7

[blocks b ] dev-libs/poppler ("dev-libs/poppler" is blocking app-text/poppler-0.12.3-r3)

[uninstall ] dev-libs/poppler-qt4-0.10.7

[blocks b ] dev-libs/poppler-qt4 ("dev-libs/poppler-qt4" is blocking app-text/poppler-0.12.3-r3)

So to resolve it, I simply uninstall the package poppler 0.10.7 and I install the new poppler :

emerge -C app-text/poppler-utils dev-libs/poppler dev-libs/poppler-qt4

emerge app-text/poppler

So now it's work and I can continue my gentoo's update.

lzma-utils xz-utils blocks packages

2010-02-26T13:56:00.000-08:00

Problem

During update, you have the following message :

[blocks B ] app-arch/lzma-utils ("app-arch/lzma-utils" is blocking app-arch/xz-utils-4.999.9_beta)
[blocks B ] app-arch/xz-utils ("app-arch/xz-utils" is blocking app-arch/lzma-utils-4.32.7)

Solution

I've read on the web that xz-utils replaced lzma-utils so the only thing to do is :

emerge -C app-arch/lzma-utils
emerge -u world

Help Gentoo and the opensource !

2010-02-25T02:55:00.000-08:00

Hello,

If you wan to help Gentoo, you can donate something or buy a gentoo product.Buy a gentoo's product permit to make a donation and to promote Gentoo and furthermore it's cool to have a gentoo's product !
So there are official's links :


Official store

Spread Shirt

You can go on the gentoo's official web site if you want to see others vendors : Gentoo's official website.

If you have buy gentoo's products and you were happy or sad with theses products.Please tell us in a comment ! It's always good to know which product are good or bad !

My wife has buy to me a gentoo's tee-shirt ... Daaaarling Where have you buy the tee-shirrrt ? I will add the answer .... be patient ... DAAAARRRRLLLIINNNGGGG
So the anwer is Cafe Press.I can tell you that I have no problem and I'm happy whith my tee-shirt

Why Gentoo and not an other Linux ?

2010-02-24T06:09:00.000-08:00

I find on the gentoo's official website the following picture :

Android blog

2010-02-22T13:27:00.001-08:00

In this time, I prepare a blog about android.In this blog we will learn together android.I don't know android.So I will learn with you and I will put all my notes on my android blog : androidKillerApps

Apply SDK doesn't work on android eclipse

2010-02-12T14:55:00.000-08:00

I've met a small problem during my android installation on Eclipse.
The Apply button has no effect.It was impossible to add an SDK in windows -> preferrences -> android

I can't see something like :

To resolve the problem, I make this :

cd android-sdk-linux/tools/

echo "export PATH=$(pwd):\${PATH}"

>> ~/.bashrc

. ~/.bashrc

android update sdk

Then, I've met ssl error ... So I tried with Eclipse.
I go on windows -> Android SDK and AVD Manager
and I click Installed Package then Update All.
I obtain :

When I return windows-> preferrences -> android -> SDK, I have a good result :

How to protect your Linux ? netstat and lsof

2010-01-27T05:26:00.000-08:00

Netstat

"Netstat" is a tooll we use in defense.It shows existing connexions

netstat -taupe | sort

# netstat -taupe | sort
Active Internet connections (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State User Inode
PID/Program name
tcp 0 0 192.168.0.12:36932 ey-in-f191.1e100.n:http ESTABLISHED toto 11436
4490/firefox-bin
tcp 0 0 192.168.0.1:netbios-ssn *:* LISTEN root 6851 3997/smbd
tcp 0 0 192.168.0.:microsoft-ds *:* LISTEN root 6850 3997/smbd
tcp 0 0 localhost:microsoft-ds *:* LISTEN root 6852 3997/smbd
tcp 0 0 localhost:netbios-ssn *:* LISTEN root 6853 3997/smbd
udp 0 0 *:bootpc *:* root 6576 3856/dhcpcd
udp 0 0 *:netbios-dgm *:* root 6875 4007/nmbd
udp 0 0 *:netbios-ns *:* root 6874 4007/nmbd
udp 0 0 192.168.0.12:netbios-ns *:* root 6878 4007/nmbd
udp 0 0 192.168.0.1:netbios-dgm *:* root 6879 4007/nmb

In my case, i saw that firefox is running and also samba and dhcp.I use samba juste a little so i prefer to stop it.It's better to stop process that you don't use and that you use only sometimes :

# rc-update del samba
* 'samba' removed from the following runlevels: default
# /etc/init.d/samba stop
* samba -> stop: smbd
...
[ ok ]
* samba -> stop: nmbd ...

To have a safe system, a good approach it to stop unused process because a hacker will want to check which process is running to hack them.So if the process is stop, it can't do anything.

lsof

This tool will you show which files is open on your linux

emerge sys-process/lsof
lsof -Pi | sort

# lsof -Pi | sort
COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
dhcpcd 3856 root 7u IPv4 6576 0t0 UDP *:68
firefox-b 4490 toto 13u IPv4 11436 0t0 TCP 192.168.0.12:36932->ey-in-f191.1e100.net:80
(ESTABLISHED)
nmbd 4007 root 6u IPv4 6874 0t0 UDP *:137
nmbd 4007 root 7u IPv4 6875 0t0 UDP *:138
nmbd 4007 root 8u IPv4 6878 0t0 UDP 192.168.0.12:137
nmbd 4007 root 9u IPv4 6879 0t0 UDP 192.168.0.12:138
smbd 3997 root 19u IPv4 6850 0t0 TCP 192.168.0.12:445 (LISTEN)
smbd 3997 root 20u IPv4 6851 0t0 TCP 192.168.0.12:139 (LISTEN)
smbd 3997 root 21u IPv4 6852 0t0 TCP localhost:445 (LISTEN)
smbd 3997 root 22u IPv4 6853 0t0 TCP localhost:139 (LISTEN)

netstat wikipedia
netstat command

How to protect your Linux ? Delete dangerous command

2010-01-20T05:01:00.000-08:00

Some tools are known to present security problems.For example rlogin,rsh ...
So you have to delete this package :

emerge -C net-misc/netkit-rsh

You can replace this tool with ssh.You have also ftp package which presents security warnings.It's better to use SCP (cp with ssh).

How to protect your Linux ? password

2010-01-13T04:35:00.000-08:00

Goal: In this article, we will check that your password are present in the good file and we will test the strength of your password.

Step 1 : Be sure that your password are in the correct file

If you open /etc/passwd, they should be like that :

root:x:0:0:root:/root:/bin/bash
bin:x:1:1:bin:/bin:/bin/false
daemon:x:2:2:daemon:/sbin:/bin/false
adm:x:3:4:adm:/var/adm:/bin/false
toto:x:500:100::/home/damitux:/bin/bash

The "x" confirms that password are in other file : /etc/shadow.If you didn't see x but some strange characters, you have to use pwconv.

Note : The format of this file is username:password:userid:groupeid:account_name:user_directory:shell

It's /etc/shadow which contents password :
root:$6$/oxwgEtd$8qxL1XfoR5QW7xtduZyaopknIV6ETEBj5fDvGjdPvDO3TYlTRQOQkYvWrJoiPtyjYfYYkgLyJHpT6oq0nAvef.:14583:0:::::
bin:!!:9797:0:::::
daemon:!!:9797:0:::::
toto:$1$u1fuA5jK$wZFULlHT/Sd8FhBv9GZhi1:14213:0:::::0

You can see severeal fields but only two interest us :
- First field contents the user name.
- The second contents the password.

You can note that password begin with $chiffre$.It permits to say which encryption is used :

SHA-512 == $6$
MD5 == $1$
SHA-256 == $5$

Etape 2 : Check password strength

To test your password, you can use John the ripper

emerge app-crypt/johntheripper
unshadow /etc/passwd /etc/shadow > testpwdmd5
john --show testpwdmd5

Note :
- You have to hit enter to check what it's doing.
- When it finishs it writes you user and password if it finds it.
- It will not search root password because the encryption of it is $6$ SHA-512.So you have to look on web site JohnTheRipper if there are patchs.

How to protect your Linux ?

2010-01-13T03:50:00.000-08:00

The goal of these article is to teach you thta you have to do to protect your Linux.In these articles we will answer at questions like :

- What can i check to be sure that my system is safe ?
- Which are services running ? Is that normal ?
- Is there someone on my computer ?
- ...

Good year

2010-01-07T02:33:00.000-08:00

This year we will see Gentoo optimisation, KDE4, Gentoo security and tips and many many things ...

Good year and good Gentoo !

Avoid package to be update on Gentoo

2009-12-20T03:35:00.000-08:00

It's possible with Gentoo to keep a version of a package and mark it as no updatable.
To do that, you have to modify (or create if it doesn't exist) the file /etc/portage/package.mask.
Then add the package version in this file.

Example :

vi /etc/portage/package.mask

>x11-drivers/nvidia-drivers-180.60

So when you will make emerge -p world, you will see :
[ebuild R ] x11-drivers/nvidia-drivers-180.60

So the package can't be update.

Install locate command

2009-12-14T12:48:00.000-08:00

To install locate on your gentoo : emerge sys-apps/mlocate
Then make updatedb

KDE 4 : Spell checker configuration

2009-12-12T04:28:00.000-08:00

With KDE, you can configure Spell Checker.In fact, Spell Checker is used in kde's application (like kmail).You can configure spell checker.To do that, open System Settings -> Region & Language :

So you can set the language and add you own words (java in the example above will not be mark as bad spell).

Asus P5Q Pro : sound configuration

2009-12-06T09:27:00.001-08:00

To having soung with my Asus P5Q Pro, i've make the following configuration :

1) Kernel configuration :

Device Drivers
--> Sound card support
--> Advanced Linux sound architecture
--> PCI sound device (*) Intel HD audio

2) Add audio group to the user : usermod -G audio monUtilisateur

3) In the file : /etc/modprobe.d/alsa.conf, i've add the following line : options snd-hda-intel

4) Then i reboot and I saw an icon on my task bar.So I make a double click on it and I disable mute option fot Front :
Liens utiles :
IntelaudioHowto

Dead key and compose key definition

2009-12-06T05:52:00.000-08:00

Here is a good definition of what is dead key and compose key that i found on wiki.linuxquestions.org :

If you press a ` and an e, you get an è. In this case the key ` is called a dead key because it is at first stroke dead. A bit more tricky is the compose key. Press the compose key and then type two keys, and both keys will be combined. E.g. type the compose key, then the comma, then c and the outcome is ç.

Combinaisons
DeadKeyWikipedia
ComposeKeyWikipedia

2009-12-01T15:24:00.000-08:00

To add euro symbol, i make a setting in :

Regional and language -> Keyboard Layout -> Advanced -> Adding EuroSign to certain key et I check E (Clic to enlarge) :

Then, click on Apply.
If you open kwrite, ant you type ALTGR E, it should work.
In Konsole, you have to set view -> Character Encoding -> Western European -> Iso 8859-15

to be sure that the symbol work.

Go installation on Gentoo

2009-11-23T13:58:00.000-08:00

Go installation on Gentoo was with no error for me.But, here is some steps to permit you to install faster :

- Add variable in user's bashrc :

export GOBIN=$HOME/go/bin/
export PATH=$GOBIN:$HOME/google/depot_tools:"$PATH"

#Go
export GOROOT=$HOME/go
export GOARCH=386
export GOOS=linux
Note : I've create $HOME/go and $HOME/go/bin.

- source ~/etc/bashrc
- If you don't have hg, you will need to install mercurial : emerge dev-util/mercurial

Chrome OS vs Linux,Windows,Mac ...

2009-11-20T02:10:00.000-08:00

Google has announced its new operating system based on Internet.
This is revolutionnary because all application are on internet.So it changes all that we know.With this sort of sytem, we can't compile, customize our system.Other people made it for you.
Moreover, we hear that Microsoft will do the same thing with Midori.

So i have many question :

- What is the future of traditionnal OS ?
- Does Linux have to follow internet operating system like Chrome OS ?
- How to customize an web OS ?
- What is the future of Gentoo ?

chroot : Enter in a new environment

2009-11-14T11:02:00.000-08:00

chroot is a unix command which permits to change root dir.

It permit to enter in a new environment in your terminal.So you can add an other system just in other window.For example, I launch my experimental gentoo in a terminal and I make a chroot. My terminal is similar to that : (chroot) localhost / #
The major advantage is I can compile and make update easily without having restart my computer.

Here is how you can do to enter in a new environment :

1) Mount experimental partition (depends on your system):
mount /dev/sda6 /mnt/gentoo

2) Mount /proc and /dev

Mount file system /proc in /mnt/gentoo/proc permit at the installation to use information provide by the kernel.Same things for /dev.

mount -t proc none /mnt/gentoo/proc
mount -o bind /dev /mnt/gentoo/dev

3) Enter in a new environment :

You can do it in three steps.First you change the root directory by making a chroot.Then you create the environment variable whit env-update.And to finish, you load this variable in memory wy using source.

chroot /mnt/gentoo /bin/bash
env-update
source /etc/profile
export PS1="(chroot) $PS1"

KDE 4.4.3 Installation successful !

2009-11-11T10:53:00.000-08:00

I've resolved my keyboard problem (I make a new xorg.conf with nvidia-xsetting) and now it's work !!!!
I can now play with my new kde !!!!

End of Kde4.3 on gentoo

2009-11-05T01:37:00.000-08:00

There is a big news today !
It's the end of kde3 and the begin of Kde4.
Yesterday, I've test kde 4.3 and i saw problems with my keyboard.But, this morning, I saw that there is a lot of update.Perhaps mybug will be solve ...

More info on http://www.gentoo.org/

KDE4.3 test on Gentoo

2009-11-04T07:40:00.000-08:00

I've test kde4.3 with Gentoo on my experimental partition.
Compilation is OK and i launched kde but i've some problem with my keyboard.(If you hit on keyboard, the letter is repeat severeal times)

To conclude, I think that we have to wait a little more before install it.

How to clean xdm at startup ?

2009-10-27T02:02:00.000-07:00

I tried tne new version of xorg and I had some problem when I reboot.Xdm start and freeze because I had dome problem whith my xorg configuration.To avoid xdm automatic launch, I just do : emerge -C xdm.After it's easy to re-install.

Note : You can startup grub in single mode by adding "single" at the enf of the boot line (e to edit).

How to solve : All ebuilds that could satisfy ... have been masked.

2009-10-09T10:52:00.000-07:00

Problem

During update, you have the following message :

!!! All ebuilds that could satisfy "x11-wm/compiz" have been masked.
!!! One of the following masked packages is required to complete your request:
- x11-wm/compiz-0.8.2-r3 (masked by: ~x86 keyword)

Solution

You have to put the package name in package.keywords.
It's because you have compiled in masked mode and when you make an update it try to search in masked package but it is not authorized.So you have to tell it that it can do by adding in package.keyword file.

Hudson : Failed to create /dev/null/.m2

2009-10-08T13:56:00.000-07:00

Problème :

When you launch an Hudson build, you have the following error: Failed to create /dev/null/.m2

Solution :

ADD MAVEN_HOME same as HUDSON_HOME at JAVA_OPTS variable in startup Tomcat script :

vi /etc/init.d/tomcat-6
# Activate Logging
if [ -r "${CATALINA_HOME}"/bin/tomcat-juli.jar ]; then
JAVA_OPTS="${JAVA_OPTS}
-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
-Djava.util.logging.config.file=${CATALINA_BASE}/conf/logging.properties"
fi
JAVA_OPTS="$JAVA_OPTS -DHUDSON_HOME=/home/hudson
-DMAVEN_HOME=/home/hudson"

Unable to create the home directory '/dev/null/.hudson'

2009-10-06T11:21:00.000-07:00

Problem :

You deploy hudson.war in Tomcat 6 and when you want to show hudson main page, you have this error :
Unable to create the home directory '/dev/null/.hudson'. This is most likely a permission problem.
To change the home directory, use HUDSON_HOME environment variable or set the
HUDSON_HOME system property. See Container-specific documentation for more details of how to do this.

Solution :

- Create a home directory for Hudson.

mkdir -p /home/hudson
chown -R tomcat:tomcat /home/hudson/

ls -al /home/hudson/
drwxr-xr-x 6 tomcat tomcat 4096 Oct 3 18:45 hudson

Note : I've notice that you must restart Tomcat for that's work.

- Add the HUDSON home directory for Tomcat in the tomcat startup script :

vi /etc/init.d/tomcat-6

Search JAVA_OPTS
Then add some line after :

JAVA_OPTS="$JAVA_OPTS -DHUDSON_HOME=/home/hudson"

Example :
...
# Activate Logging
if [ -r "${CATALINA_HOME}"/bin/tomcat-juli.jar ]; then
JAVA_OPTS="${JAVA_OPTS} -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager \
-Djava.util.logging.config.file=${CATALINA_BASE}/conf/logging.properties"
fi
JAVA_OPTS="$JAVA_OPTS -DHUDSON_HOME=/home/hudson"
...

- Modify the Tomcat user file (vi /etc/tomcat-6/tomcat-users.xml )
cf AdministrationHudson

- Then Restart Tomcat.

Tomcat 6 compilation error under Gentoo : ImportError

2009-10-03T09:59:00.000-07:00

Installation of Tomcat 6 under Gentoo is simple : emerge tomcat.
I just met an compilation 's error :ImportError (see under).
To resolve, just follow the message in the error's description like that :
emerge -l dev-python/pyxml

>>> '/var/tmp/portage/www-servers/tomcat-6.0.20/temp/build.log'
* Messages for package www-servers/tomcat-6.0.20:
* If the output above contains:
* ImportError:
* /usr/lib/python2.4/site-packages/_xmlplus/parsers/pyexpat.so:
* undefined symbol: PyUnicodeUCS2_DecodeUTF8
* Try re-emerging dev-python/pyxml
*
* ERROR: www-servers/tomcat-6.0.20 failed.
* Call stack:
* ebuild.sh, line 49: Called src_configure
* environment, line 4310: Called java-ant-2_src_configure
* environment, line 2127: Called java-ant_bsfix
* environment, line 2149: Called java-ant_bsfix_files './build.xml' './res/deploye
/build.xml' './webapps/ROOT/build.xml' './test/build.xml'
* environment, line 2244: Called _bsfix_die 'xml-rewrite2 failed: ./test/build.xml'
* environment, line 306: Called die
* The specific snippet of code:
* die ${1} " Look at the eerror message above";
* The die message:
* xml-rewrite2 failed: ./test/build.xml Look at the eerror message above
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/www-servers/tomcat-6.0.20/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/www-servers/tomcat-6.0.2
/temp/environment'.

Installation KDE4 : directory package.keywords

2009-10-02T08:46:00.000-07:00

When i install KDE4, I was surprised to see in the documentation : cd /etc/portage/package.keywords : Manuel KDE4
However, on my computer there is only a single file package.keywords
I search on the web and i found the solution :

/etc/portage/
Any file in this directory that begins with "package." can be more than just a flat file. If it is a directory, then all the files in that directory will be summed together as if it were a single file.

Installation of Maven under Gentoo

2009-10-01T11:14:00.000-07:00

It exists maven's ebuild.To see them, you can make a search like that :
eix maven.

Then if you wan to install, you can make : emerge dev-java/maven-bin

If you don't know eix, see my article.You will be impressed by this command !

virtualbox compilation failed

2009-09-30T09:13:00.000-07:00

Problème :

The compilation of virtualbox fails :

...
>>> Failed to emerge app-emulation/virtualbox-modules-1.6.6-r1, Log file:

>>> '/var/tmp/portage/app-emulation/virtualbox-modules-1.6.6-r1/temp/build.log'

* Messages for package app-emulation/virtualbox-modules-1.6.6-r1:

*
* ERROR: app-emulation/virtualbox-modules-1.6.6-r1 failed.
* Call stack:
* ebuild.sh, line 49: Called src_compile
* environment, line 3365: Called linux-mod_src_compile
* environment, line 2605: Called die
* The specific snippet of code:
* eval "emake HOSTCC=\"$(tc-getBUILD_CC)\" CROSS_COMPILE=${CHOST}- LDFLAGS=\"$(get_abi_LDFLAGS)\" ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS} " || die "Unable to emake HOSTCC="$(tc-getBUILD_CC)" CROSS_COMPILE=${CHOST}- LDFLAGS="$(get_abi_LDFLAGS)" ${BUILD_FIXES} ${BUILD_PARAMS} ${BUILD_TARGETS}";
* The die message:
* Unable to emake HOSTCC=i686-pc-linux-gnu-gcc CROSS_COMPILE=i686-pc-linux-gnu- LDFLAGS= KERN_DIR=/usr/src/linux KERNOUT=/usr/src/linux all
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/app-emulation/virtualbox-modules-1.6.6-r1/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/app-emulation/virtualbox-modules-1.6.6-r1/temp/environment'.
...

Solution :

The actual virtualbox version is too old for this kernel.You need to get the last version
of virtualbox (x86).
Add this in your /etc/portage/package.keywords :

app-emulation/virtualbox-ose ~x86
app-emulation/virtualbox-modules ~x86
app-emulation/virtualbox-ose-additions ~x86
dev-util/kbuild ~x86

Then emerge app-emulation/virtualbox-ose

Failed to emerge dev-java/ant-core-1.7.1-r4

2009-09-28T10:32:00.000-07:00

Problème

When i update my gentoo, i've the following problem :
Failed to emerge dev-java/ant-core-1.7.1-r4

It's java_config fault :
Traceback (most recent call last):
File "/usr/bin/java-config-2", line 8, in
from java_config_2 import __version__
ImportError: No module named java_config_2

Solution

You have to emerge java_config once again :
=> Solution : emerge -l java-config

Example of failed compilation :
Traceback (most recent call last):
File "/usr/bin/java-config-2", line 8, in
from java_config_2 import __version__
ImportError: No module named java_config_2
*
* Can't run java-config --help
* Have you upgraded python recently but haven't
* run python-updater yet?
*
* ERROR: dev-java/ant-core-1.7.1-r4 failed.
* Call stack:
* ebuild.sh, line 49: Called pkg_setup
* ebuild.sh, line 1273: Called java-pkg-2_pkg_setup
* java-pkg-2.eclass, line 61: Called java-pkg_init
* java-utils-2.eclass, line 2050: Called die
* The specific snippet of code:
* die "Can't run java-config --help"
* The die message:
* Can't run java-config --help
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/dev-java/ant-core-1.7.1-r4/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/dev-java/ant-core-1.7.1-r4/temp/die.env'.
*
!!! When you file a bug report, please include the following information:
GENTOO_VM= CLASSPATH="." JAVA_HOME=""
JAVACFLAGS="" COMPILER=""
and of course, the output of emerge --info

>>> Failed to emerge dev-java/ant-core-1.7.1-r4, Log file:

>>> '/var/tmp/portage/dev-java/ant-core-1.7.1-r4/temp/build.log'

* Messages for package dev-java/ant-core-1.7.1-r4:

*
* Can't run java-config --help
* Have you upgraded python recently but haven't
* run python-updater yet?
*
* ERROR: dev-java/ant-core-1.7.1-r4 failed.
* Call stack:
* ebuild.sh, line 49: Called pkg_setup
* ebuild.sh, line 1273: Called java-pkg-2_pkg_setup
* java-pkg-2.eclass, line 61: Called java-pkg_init
* java-utils-2.eclass, line 2050: Called die
* The specific snippet of code:
* die "Can't run java-config --help"
* The die message:
* Can't run java-config --help
*
* If you need support, post the topmost build error, and the call stack if relevant.
* A complete build log is located at '/var/tmp/portage/dev-java/ant-core-1.7.1-r4/temp/build.log'.
* The ebuild environment file is located at '/var/tmp/portage/dev-java/ant-core-1.7.1-r4/temp/die.env'.

Search ebuild faster with eix

2009-09-25T05:16:00.000-07:00

Problem :

You can search ebuild with emerge -s.Is there a faster way to search packet ?

Solution :

It exists a tool to make search faster on portage tree and other non official trees : eix

0) Install it :

  $ echo app-portage/eix >> /etc/portage/package.keywords
    $ emerge -av app-portage/eix

1) Update it (you have to do this after emerge --sync) : update-eix
2) Search a packet (for example mediawiki) : eix -s mediawiki

Gentoo wiki

2009-09-21T02:49:00.000-07:00

You search some help on Gentoo ?
See the Wiki Gentoo

You will see many help on materials, configuration ...

equery

2009-09-19T05:07:00.000-07:00

Definition : Equery is a package query tool.

Installation :

# emerge gentoolkit

USE :

Here is some common use about equery :

- List all installed package : equery l

$ equery l
ou
$ equery list

The output of the command is : [---] [--] package.

The first bracket can have these values :
I : installed package
P : Portage
O : Overlay

The second bracket can have these value :
~ : by keywords.
- : by arch
M : masqued

Example :
$ equery l
[ Searching for all packages in all categories among: ]
* installed packages
[I--] [ ] app-admin/eselect-1.1.3 (0)
[I--] [M ] app-admin/eselect-ctags-1.5 (0)
...

- List all dependency of a packet : equery depends [packet]

$ equery depends vim
[ Searching for packages depending on vim... ]
app-vim/gentoo-syntax-20070506 (>=app-editors/vim-7.0)
virtual/editor-0 (app-editors/vim)

- Search at which packet belongs this file : equery b [fichier]

# equery belongs /usr/bin/audacious
ou
# equery b /usr/bin/audacious

For more informations, you can see the official gentoo documentation : gentoolkit

Gentoo optimization : prelink

2009-09-11T23:33:00.000-07:00

Definition :

prelink is a binary that take shared libraries and put them in binary.It permits for example to start kde more quickly.Use it and you will see !

Installation :

emerge prelink
env-update

Use :

prelink -amR

You have to execute the command each time you update your system because new shared libraries have to be integrate in binary.

Example :

# prelink -amR
prelink: /usr/lib/xulrunner/xpcshell: Could not find one of the dependencies
prelink: /usr/lib/xulrunner/TestGtkEmbed: Could not find one of the dependencies
prelink: /usr/lib/xulrunner/regxpcom: Could not find one of the dependencies
prelink: /usr/lib/xulrunner/mozilla-xremote-client: Could not find one of the dependencies
prelink: /usr/lib/xulrunner/xulrunner-stub: Could not find one of the dependencies
prelink: /usr/lib/xulrunner/xulrunner-bin: Could not find one of the dependencies
prelink: /usr/bin/qtdemo: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/kpendulum.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/bin/tcdecode: Cannot prelink against non-PIC shared library /usr/lib/libavcodec.so.52
prelink: /usr/bin/compiz: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/bin/ffmpeg: Cannot prelink against non-PIC shared library /usr/lib/libavutil.so.49
prelink: /usr/kde/3.5/bin/kwave.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/kgravity.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/kflux.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/bin/glxgears: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGLcore.so.1
prelink: /usr/kde/3.5/bin/krotation.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/i686-pc-linux-gnu/gcc-bin/4.1.2/i686-pc-linux-gnu-c++ is no longer hardlink to /usr/i686-pc-linux-gnu/gcc-bin/4.1.2/i686-pc-linux-gnu-g++
prelink: /usr/kde/3.5/bin/kspace.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/ksolarwinds.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/keuphoria.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/bin/glxinfo: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/kdesktop_lock: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1
prelink: /usr/kde/3.5/bin/kfountain.kss: Cannot prelink against non-PIC shared library //usr//lib/opengl/nvidia/lib/libGL.so.1

Don't be afraid of warning message.See the official gentoo documentation for more details : prelink

NOTE :

- This command isn't dangerous but you must be sure that you have enought space in you hard disk.If not, some executable will be truncate. Use df -h to check it.

eselect

2009-09-07T12:42:00.000-07:00

In this article i will present that we can do with the eselect command.

Definition : eselect is a command to configure and administrate gentoo system.It can be use for example to switch kernel or java version.You have to use this command carrefully.

Installation : It's possible that you need to install before use.To install :

$ echo app-admin/eselect ~x86 >> /etc/portage/package.keywords
$ emerge -av app-admin/eselect

Common use : List possible selection and set one of them
eselect list

Example:
# eselect java-vm list
Available Java Virtual Machines:
[1] sun-jdk-1.5
[2] sun-jdk-1.6 system-vm

# eselect kernel list
Available kernel symlink targets:
[1] linux-2.6.26-gentoo-r3
[2] linux-2.6.27-gentoo-r4
[3] linux-2.6.27-gentoo-r5
[4] linux-2.6.27-gentoo-r7
[5] linux-2.6.28-gentoo
[6] linux-2.6.28-gentoo-r1
[7] linux-2.6.29-gentoo-r2
[8] linux-2.6.29-gentoo-r4
[9] linux-2.6.30-gentoo-r1 *

Set a selection :

# eselect kernel set 1
# eselect kernel set linux-2.6.27-gentoo-r7

Activate fonction to a module :

You can for example activate or disable vim for bash completion.

Example :

$ eselect bashcomp enable vim



http://www.gentoo.org/proj/en/eselect/index.xml

How do you update you gentoo ?

2009-08-27T07:13:00.000-07:00

You have to update your gentoo frequently.
Here is some steps you have to do :

1) Update portage

$ emerge --sync

2) Update the System

$ emerge -p system
$ emerge -u system

3) Update Software

$ emerge -p world
$ emerge -u world

4) Launch Optimisation

If you want that executable start faster, try this :
$ prelink -amR (Very Very Useful ! see my documentation about installation and use prelink)

5) Search Optimisation

$ update-eix
See on eix.This command will permit you to run faster.

Important notes :
- It is possible to update your configuration file with etc-update.
If you are a beginner, use it carrefully because you can destroy you configuration.Make a backup before !
- -p permit to check if they are some packets to update.

emerge x11-drivers/nvidia-drivers compilation failed Could not find a usable .config

2009-08-16T07:43:00.000-07:00

Problem :
When you update x11-drivers/nvidia-drivers, the compilation fails.
Example :
* Could not find a usable .config in the kernel source directory.
* Please ensure that /usr/src/linux points to a configured set of Linux sources.
* If you are using KBUILD_OUTPUT, please set the environment var so that
* it points to the necessary object directory so that it might find .config.
*
* ERROR: x11-drivers/nvidia-drivers-185.18.31 failed.

Solution :

You aren't on the good kernel.This is because during update the link is change.
If you do :
ls -al /usr/src/
lrwxrwxrwx 1 root root 22 Aug 16 16:30 linux -> linux-2.6.30-gentoo-r1
drwxr-xr-x 22 root root 4096 Nov 29 2008 linux-2.6.26-gentoo-r3
drwxr-xr-x 23 root root 4096 Dec 6 2008 linux-2.6.27-gentoo-r4
drwxr-xr-x 23 root root 4096 Aug 9 13:36 linux-2.6.30-gentoo-r1

You see that the link points on an other kernel and you have'nt compile source for this kernel.
That's why there is no .config files.
So there is two solutions :
- Compile new kernel sources.
- Point on good kernel.

We will take the easier solution : Select your kernel.
To do that :
# eselect kernel list
Available kernel symlink targets:
[1] linux-2.6.26-gentoo-r3
[2] linux-2.6.27-gentoo-r4
[3] linux-2.6.27-gentoo-r5
[4] linux-2.6.27-gentoo-r7
[5] linux-2.6.28-gentoo
[6] linux-2.6.28-gentoo-r1
[7] linux-2.6.29-gentoo-r2
[8] linux-2.6.29-gentoo-r4
[9] linux-2.6.30-gentoo-r1 *
[10] linux-2.6.30-gentoo-r2

Then you can point on the good kernel :
# eselect kernel set 9

If you execute eselect kernel list, you will see a start on the select kernel.
Then you can make an update of the package :
#emerge -u x11-drivers/nvidia-drivers

shell read properties file

2009-08-13T11:44:00.000-07:00

Problem :

You want to read a properties files that is similar to :

vi test.properties

VAR1=zest
VAR2=blop
VAR3=toto
MAIL=test@ty
ALIAS=monalias

You want also use this variable.

Solution

You have to read line by line and make an export of each line.
Note : It's just a test method.

#!/bin/ksh
#-----------------------------

------------------------------
# Methode qui lit les proprietes d un fichier de properties.
#-----------------------------------------------------------

readFileProperties()
{
FILE="test.properties"

test -f $FILE
if [ $? -ne 0 ];then
echo "Fichier de propriete inexistant:$FILE"
exit 1
fi

echo "Lecture..."
while read ligne
do
if echo "$ligne" |grep "=" 1>/dev/null
then
VARNAME=`echo $ligne |cut -f1 -d=`
#echo $VARNAME
VARVALUE=`grep "^$VARNAME=" $FILE`
export $VARVALUE
#echo "export $VARVALUE"
fi
done < $FILE echo "VAR1:$VAR1" echo "VAR2:$VAR2" echo "VAR3:$VAR3" echo "ALIAS:$ALIAS" echo "MAIL:$MAIL" } readFileProperties

cannot set LC_CTYPE locale (gentoo)

2009-08-09T04:20:00.000-07:00

Problem :

cannot set LC_CTYPE locale
environment variable LANG is fr_FR.utf8@euro
please check that your locale name is correct

Solution :

The problem is that LC_CTYPE was unknown.
In fact, you have to check that this variable value is correctly spell.
To do that, you can do : locale -a

Example :
$ locale -a
C
POSIX
fr_FR fr_FR.iso88591
fr_FR.iso885915@euro
fr_FR@euro

Next, you have to check in the configuration file :
On gentoo : vi /etc/env.d/02locale

Example :
vi /etc/env.d/02locale

LANG="fr_FR.iso885915@euro"
LC_COLLATE="C"

=> You must have LANG variable initializes with one of the result of the command : locale -a

If you want, you can also let every Linux user to configure their own variable.

vi ~/.bashrc

Example :
vi ~/.bashrc
export LANG="fr_FR.iso885915@euro"
export LC_ALL=C

svn: warning: cannot set LC_CTYPE locale

2009-08-09T02:04:00.000-07:00

This is a small but useful tips which permits to solve my problem : (http://armenianeagle.com/2008/03/18/svn-warning-cannot-set-lc_ctype-locale-solution/)

Problem :

You type : svn status
And you've got this error message :
svn: warning: cannot set LC_CTYPE locale
svn: warning: environment variable LANG is fr_FR.utf8@euro
svn: warning: please check that your locale name is correct
svn: warning: '.' is not a working copy

Solution :

export LC_ALL=C