Recovering #ubuntu grub after #fedora install

i have added in the
grub/menu.lst


title Ubuntu karmic (development branch), kernel 2.6.31-14-generic
root (hd0,0)
kernel /boot/vmlinuz-2.6.31-14-generic root=/dev/sda1 ro quiet splash
initrd /boot/initrd.img-2.6.31-14-generic
quiet


and rebooted

then from ubuntu

sudo grub-install /dev/sda1
and i'm back to ubuntu for the moment

Using #Fedora #Linux day three (#Ubuntu maniac perspective)

Here is an alternate fedora kde installer review
http://distrowatch.com/weekly.php?issue=20091123#feature

konqueror drives me crazy when i click an link in psi
infinite loop startup
sudo killall -9 kfmclient
so i had to change default browser to arora in the system settings


I don't have any printer configured

sudo /etc/init.d/cups stop
sudo chkconfig cups off

No iscsi sorry

sudo chkconfig iscsid off
no Yellow pages
sudo yum remove ypbind

sudo chkconfig lvm2-monitor off
sudo chkconfig openct off
I don't use nfs
sudo chkconfig rpcbind off
sudo chkconfig rpcidmapd off
sudo chkconfig netfs off
sudo chkconfig nfslock off
sudo chkconfig pcscd off
sudo chkconfig rpcgssd off

i don't update my cpu microcode too often
sudo chkconfig microcode_ctl off


I found that i have installed smolt with interesting stats about hardware used in Fedora
http://smolt.fedoraproject.org/

I didn't knew what portreserve is so i disabled it
http://fedoraproject.org/wiki/Features/Portreserve

sudo chkconfig portreserve off


live cd install leftovers http://forums.fedoraforum.org/showthread.php?t=207366

sudo chkconfig livesys off
sudo chkconfig livesys-late off

wtf sendmail by default !? maybe in next fedora it should be proposed postfix by default
also all the above daemons disabled by default (rpc/nfs related ones)

sudo yum install postfix
sudo yum remove sendmail


remove pulse audio see why skype related http://akdwivedi.wordpress.com/2009/05/09/skype-on-64bit-fedora-10/

sudo rpm -e kde-settings-pulseaudio-4.3-12.noarch
sudo yum remove pulseaudio
sudo yum remove pulseaudio-utils
sudo killall -9 pulseaudio

Here is how to add mp3 support in amarok

sudo yum install xine-lib-extras-freeworld

oh crap i can't remove konqueror in in the kde-base

http://forums.fedoraforum.org/showthread.php?t=227165

and i miss abrowser or iceweaseal packages (unbranded firefox)

I found that qmake is qmake-qt4

what i miss from ubuntu is command line not found suggestions (when you miss package bash can suggest you what to install)

Using #Fedora #Linux day two (Ubuntu maniac perspective)

Installing skype for 64 bits fedora is harder than on #ubuntu

sudo yum install qt-x11-4.5.3-9.fc12.i686
sudo yum install qt-4.5.3-9.fc12.i686
sudo yum install libXScrnSaver-1.2.0-1.fc12.i686

download skype rpm for fc10+ (32bit version
)

http://www.skype.com/go/getskype-linux-beta-fc10

sudo rpm -Uvh skype-2.1.0.47-fc10.i586.rpm

configure it to Not use the pulse audio

arora browser is 0.10.1 with qt 4.5.3 , it's crashing if i use gmail.com and then close the tab
known bug , that i have reported to arora (seems to be fixed in qt 4.6 and arora from ubuntu karmic)

qtcreator is called qt-creator and is at version 1.3 in fedora !

next is to find where is qmake

Screenshots in #php using #qt #python or #c++

I used the example from this article

and installed the needed libs on the server
sudo apt-get install libqt4-core libqt4-webkit python-qt4 xvfb


wget http://github.com/AdamN/python-webkit2png/raw/master/webkit2png.py

python webkit2png.py -x -o cnn.png --debug http://www.cnn.com

chmod +x webkit2png.py

from php

passthru("/home/mariuz/webkit2png.py -x -o /tmp/google.png --debug --scale 100 100 http://www.google.com")

i want to load a page with flash content , shameless plug reea.net

webkit2png.py –scale 200 200 -x -o reea.png –debug http://reea.net

but seems i have an flash error and the image is quite empty

Adobe Flash Player: gtk_clipboard_get(GDK_SELECTION_PRIMARY); failed. Trying to call gtk_init(0,0);
Xlib: extension “RANDR” missing on display “:99.0″.

also got the same error with gnash

I have investigated the c++ websnap examples from qt labs now hosted in git

http://labs.trolltech.com/blogs/2008/11/03/thumbnail-preview-of-web-page/

Another example in c++ is on this page and have made it compile on qt 4.5.3

and added

view->page()->settings()->setAttribute(QWebSettings::PluginsEnabled,true);

Using #Fedora #Linux day one (Ubuntu maniac perspective)

I liked some things on fedora 12 and i wanted to test it and and use it for a week or two (on distrowatch i saw this idea of rotating linux distributions once in a while)

I downloaded kde spin http://spins.fedoraproject.org/kde/ and installed on secondary partition the installer was a little harder to gasp than the default ubuntu one (from what i remember) Maybe the partition editor should need a little care for example fiber channel is weird to apear in the menu at advaced partitions options, I was expecting something else .

Another thing i didn't liked it is why on earth i need root user and after that i need to create my user anyway ?, Do it once and make it do sudo I was expecting to be in the sudo group and admin by default like is in ubuntu

What was nice about installer is it finished whithout to many questions and after reboot i configured the user . Maybe it should be the same for ubuntu installer : Less questions for installer and then copy the files from cd/dvd

First thing i disabled is of course selinux (security insanity should be an option and feature not enabled by default)

What was nice that disk image was transfered to the the partition so no extra package install time like in debian .
Another bonus for updates is that is using xz by default and only what is changed is updated


(primary partition is ubuntu)

First i installed adobe flashplayer 10 (64 bit version)
http://labs.adobe.com/downloads/flashplayer10_64bit.html

wget http://download.macromedia.com/pub/labs/flashplayer10/libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz
tar -zxvf libflashplayer-10.0.32.18.linux-x86_64.so.tar.gz
mv libflashplayer.so /usr/lib64/mozilla/plugins/

by default there are some rules in firewall so i flush them

$ sudo iptables -L -n
[sudo] password for mariuz:
Chain INPUT (policy ACCEPT)
target prot opt source destination
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
ACCEPT icmp -- 0.0.0.0/0 0.0.0.0/0
ACCEPT all -- 0.0.0.0/0 0.0.0.0/0
ACCEPT tcp -- 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT)
target prot opt source destination
REJECT all -- 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

$ sudo iptables -F
$ sudo iptables -L -n


added myself in sudoers list

su

vi /etc/sudoers
mariuz ALL=(ALL) ALL


installed fireofox arora psi and pidgin
I have created mariuz user

deleted /home/mariuz and
i use my home from ubuntu partition
added in /etc/fstab
UUID=190eba34-a00b-4245-9112-c92e73893085 /ubuntu ext4 defaults 0 1

ln -s /ubuntu/home/mariuz /home

if you want to find the block id

blkid /dev/sda1
/dev/sda1: UUID="190eba34-a00b-4245-9112-c92e73893085" TYPE="ext4"

enable rpm fusion for mp3 and other stuff
http://rpmfusion.org/RPM%20Fusion


ToDo: test and install nvidia driver
http://www.reddit.com/r/linux/comments/a68wl/how_to_fight_nouveau_the_wonderful_new_nvidia/
http://www.mjmwired.net/resources/mjm-fedora-nvidia.html#f12

#Firebird available in major #linux distros : #Mandriva , #Debian, #Ubuntu, #Fedora ,#Gentoo,#OpenSuse

Finaly OpenSuse 11.2 is out. It is the first time that Firebird is in official OpenSuse repositories.

After Mandriva (2010.0 is very nice), Debian, Ubuntu, Fedora (and RHEL/Centos Fedora project repositories),Gentoo : we have now OpenSuse

All major free distro have now latest Firebird stable version (2.1.3) available in their official repositories.


Here is the list of where firebird 2.1.3  is included or can be installed

• Debian [Done] by Damyan Ivanov
• Ubuntu [Done] in the next LTS release Lucid Lynx
• Fedora [Done] by Philippe Makowski
• Gentoo [Done] http://www.gentoo-portage.com/dev-db/firebird
• Mandriva [Done] by Philippe Makowski
• OpenSuse [Done] by Philippe Makowski
• Red Hat Enterprise Linux [Done] by Philippe Makowski
• Centos [Done] by Philippe Makowski
• Pardus [Done] Check the pisi repository

#hp #laser printer 400x after upgrading to #ubuntu #karmic

Seems that printer didn't worked after upgrade to karmic
so i had to run the hp-setup
and delete the old configuration , seems that all went ok after that (test page and aasdasdasd odt document)

Before that i had lots of errors


Returning IPP client-error-document-format-not-supported for Send-Document (ipp://localhost:631/printers/LaserJet-4000) from localhost

but the application/octet-stream was decommented in
/etc/cups/mime.types
and
/etc/cups/mime.convs

#Firefox 0.1 aka #Phoenix on #Ubuntu #Karmik #Koala

This is how to install it and see how free web/firefox was 7 years ago
You can test then all the releaseses until ffx 3.5.5 and more
gmail works but is not supported by that old foxie

Download phoenix 0.1

Download gtk1.2 and libstdc++ needed for it from debian stable

wget http://ftp.us.debian.org/debian/pool/main/g/gtk+1.2/libgtk1.2_1.2.10-18.1_i386.deb

wget http://ftp.us.debian.org/debian/pool/main/g/glib1.2/libglib1.2_1.2.10-17_i386.deb

wget http://ftp.us.debian.org/debian/pool/main/g/gtk+1.2/libgtk1.2-common_1.2.10-18.1_all.deb

wget http://ftp.us.debian.org/debian/pool/main/g/glib1.2/libglib1.2ldbl_1.2.10-19_i386.deb

wget http://ftp.us.debian.org/debian/pool/main/g/gcc-2.95/libstdc++2.10-glibc2.2_2.95.4-27_i386.deb

sudo dpkg -i *.deb

get the foxkeh
wget http://ftp.mozilla.org/pub/phoenix/releases/0.1/phoenix-0.1-i686-pc-linux-gnu.tar.gz
tar -zxvf phoenix-0.1-i686-pc-linux-gnu.tar.gz
cd phoenix
./phoenix
welcome to web 2.0 (i think it was called slashdot at that time)

#qt 4.6 #beta with #arora #browser compiled for it uploaded for #ubuntu #karmic

I have reuploaded the qt 4.6 beta 1 this time i have added libqt4-
phonon-dev - it was missing by mistake so it will not remove all the kde packages this time :)
also arora 0.10.1 was recompiled with new qt 4.6 features

https://edge.launchpad.net/~mapopa/+archive/qt4.6

Debugging #Firebird and #Drupal #php #pdo driver

I started by installing latest php : 5.3.1 rc3 and then with the help of ddd

I can step and put breakpoints in the driver source

cd /opt/build/php-5.3.1RC3

sudo ddd /usr/sbin/apache2

Load the drupal install and follow this guide

also I have started to use the debug_backtrace to figure the error without text that i have (empty exception text)

print_r(debug_backtrace());

I have joined to #Alioth #Firebird #Debian project

Seems that i need alioth account http://wiki.debian.org/Alioth to modify the firebird packages , in fact i will modify just the Git repository , maybe i will help with manual pages for firebird 2.5 and with packaging bugs

git insufficient permission for adding an object to repository database ./objects

this is a shared group repository
so i had to enter the repository dir and make sure group can write into it

ssh to server
cd repository.git

sudo chmod -R g+ws *
sudo chgrp -R mygroup *

git repo-config core.sharedRepository true

and the try to push origin master again

#etckeeper is using #bzr by default in !ubuntu #karmic

sudo apt-get install etckeeper

grep VCS /etc/etckeeper/etckeeper.conf

VCS="bzr"

to see the changes in a graphical way

sudo apt-get install bzr-gtk

cd /etc

olive-gtk &

wait a few seconds/minutes ....

#qt 4.6 beta ppa for #ubuntu #karmic , soon I will upload #arora soon

Use it at your own risk https://edge.launchpad.net/~mapopa/+archive/qt4.6

I used the qt preview tp1 and sometimes it crashed so needed the new beta ,
I  tested it on my kde desktop + I will upload arora recompiled with 4.6 version soon

The arora from karmic should work ok with 4.6 too but maybe a
recompile is needed
before you upgrade is better to save your list of pachages

dpkg --get-selections > installed-software.log

then you can reinstall qt/kde packages from console if you have problems with (revert to qt 4.5.3 if you want)
with

sudo dpkg --set-selections < installed-software.log
sudo dselect

and press I to install all the packages saved

On my sistem i had before qt tp1 packages and in deb name i had "tp1" > "beta1" if you think as a
package manager so i had to remove all qt packages and kde too and
reinstall them

sudo apt-get purge libqtcore4

Then i did the steps from above

#nginx and #wsgi on #ubuntu howto

I wanted to install mod_wsgi for nginx on ubuntu here are some basic steps for compiling it


wget http://sysoev.ru/nginx/nginx-0.7.62.tar.gz

tar -zxvf nginx-0.7.62.tar.gz

hg clone http://hg.mperillo.ath.cx/nginx/mod_wsgi/

wget http://lophus.org/~fred/mod_wsgi_patch.diff

see why you need that patch

cd mod_wsgi/

patch -p1 < ../mod_wsgi_patch.diff

cd ..

cd nginx-0.7.62/
./configure --add-module=../mod_wsgi/ --with-debug
make
sudo make install

How can i use linux low level/posix api with #qt ?

well i was searching the google about the above question and i remembered that you can use c api in c++ like any other function

you can see these posix linux threads examples that can be compiled with c++ like this $ g++ -lpthread pthread1.c


Next step was to create a simple example with qt creator 
something like get_pid.c example from advanced linux programming book 


so after an empty gui project is created do small modification like this and run it 


it should give you no errors and it should print in the console the pid 

Starting /home/mariuz/work/qtgetpid/qtgetpid/qtgetpid...

/proc/self reports process id 7977

getpid() reports process id 7977

playing with powertop on my netbook

I know that this via netbook does have issues with powermanagement and i want to digg deeper
to get some sort of power/instructions trace
so i have installed powertop

sudo apt-get install powertop
what is interesting C3 state (sleep) is buggy on this cpu (cache incoherent)
and i see that is really used , it should be disabled by bios but i know that bios is buggy too.

Powertop suggested this
echo 1500 > /proc/sys/vm/dirty_writeback_centisecs

so i have added it in /etc/rc.local
before the exit 0

Weird vncviewer in vncviewer with shared desktop option in #ubuntu

I wanted to share my desktop over the ssh connection , I will do ssh -X from another machine
and start the vncviewer , and here is how it looks when you start vncviewer on the localhost

Building #Firebird 2.5.x extension for #Php 5.x.x on #Windows

Follow the advice on howto compile php on windows with visual studio express (yucks)
http://wiki.php.net/internals/windows/stepbystepbuild
I  will not copy paste all  the steps here , a short document makes them easy to follow


1.Install Cisual Studio  C++ 20xx
http://www.microsoft.com/express/Downloads/#2008-Visual-CPP
2. get and install windows sdk 6.1
3. get a php 5.x snapshot or any stable version 5.x (do not extract yet!)


Next is is to download a zip file with firebird 2.5.x final from sourceforge 


in my case http://sourceforge.net/projects/firebird/files/firebird-win32/2.5.2-Release/Firebird-2.5.2.26540-0_Win32_pdb.zip/download


Next is to unzip the files from bin,include,lib
into C:\php-sdk\php53dev\vc9\x86\deps


enable firebird extension from the build console (By default thread safe version is build )


configure --disable-all --enable-cli --with-interbase 
nmake 
cd Release_TS
php -m 


should show you that interbase/firebird extension is there 

If you want to create the shared dll for the firebird extension you need to provide 
--with-interbase=shared to the configure script
otherwise it will be included in the big php executable 
Another note is if you do use IIS with fastcgi then you must disable threading support (Non Thread Safe ) in the configure part you must add --disable-zts



Update:
The work to compile full firebird 2.5.x server with visual c++ 20xx and $sudo make the php core developers happy is DONE (the firebird extension it will be included by default in official php 5.x zip file for windows)

Compiling #mysql #workbench 5.1.x on #ubuntu #debian #Linux

At this time 5.1.19 is available on download link 

wget http://dev.mysql.com/get/Downloads/MySQLGUITools/mysql-workbench-gpl-5.1.19-src.tar.gz/from/http://mysql.mirrors.pair.com/ -O mysql-workbench-gpl-5.1.19-src.tar.gz

tar -zxvf mysql-workbench-oss-5.1.19.tar.gz
cd mysql-workbench-oss-5.1.19/
sudo apt-get install libzip-dev libsigc++-2.0-dev libglade2-dev libgtkmm-2.4-dev
libgnome2-dev uuid-dev lua5.1 liblua5.1-0-dev libpcre3-dev




 ./autogen.sh
make -j2
sudo make install