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To zero out a drive:

dd if=/dev/zero of=/dev/sda

To make sure that the drive is really zeroed out:

dd if=/dev/sda | hexdump -C | head

Posted by Alejandro. Filed under Linux, terminal, Ubuntu.

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Be sure to enable the “Source Code” repositories first.

wget http://downloads.sourceforge.net/sourceforge/gnucash/gnucash-2.4.0.tar.gz
tar xvfz gnucash-2.4.0.tar.gz
sudo aptitude build-dep gnucash
sudo aptitude install texinfo subversion intltool libdbi0-dev libdbd-{sqlite3,pgsql,mysql} guile-1.8 guile-1.8-dev doxygen libdbi0-dev libdbd-{sqlite3,pgsql,mysql}
cd /usr/share/guile/1.8
sudo ln -s ../../slib slib
sudo guile -c "(use-modules (ice-9 slib)) (require 'new-catalog)"
cd ~/gnucash-2.4.0/
./configure --prefix=$HOME/stable/gnucash --enable-debug --enable-doxygen --enable-error-on-warning --enable-compile-warnings --enable-dbi
make all install

and finally, run it

~/stable/gnucash/bin/gnucash

Done!

Posted by Alejandro. Filed under Business, Linux, terminal, Ubuntu.

Tags: Database, GnuCash 2.4.0, MySQL, UBUNTU 10.10.

Using the terminal:

gksudo gedit /usr/share/applications/mimeinfo.cache

Search for: x-directory/gnome-default-handler=

and make sure the whole line reads

x-directory/gnome-default-handler=nautilus-folder-handler.desktop

instead of:

x-directory/gnome-default-handler=Thunar-folder-handler.desktop
x-directory/gnome-default-handler=pcmanfm-folder-handler.desktop;
x-directory/gnome-default-handler=kde4-dolphin.desktop

Posted via email

Posted by acuervo. Filed under Firefox, Linux, terminal, Ubuntu.

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This is an ever growing list of terminal commands to keep handy

1. sudo apt-get install --fix-broken
2. sudo dpkg --configure -a
3. htop
4. dpkg --get-selections > installed-software (Back up list of installed Software)
5. dpkg --set-selections < installed-software (Restore previously installed software)
6. apt-get -u dselect-upgrade (Execute #5)
7. lshw > lshw.txt (See your system's hardware info)

Posted by Alejandro. Filed under Linux, terminal, Ubuntu.

Tags: apt-get, dpkg, Linux.

The Ubuntu Linux distribution has received a major update today. The new version, Ubuntu 9.10, will introduce several significant new features and will deliver the latest version of the GNOME desktop environment and other applications.

This is the eleventh release of Ubuntu since the project’s inception five years ago. The distribution has achieved an unprecedented level of popularity in the Linux desktop ecosystem and has attracted a considerable audience. Canonical, the company behind Ubuntu, touts the new release as its best yet and says that the latest improvements will take the Ubuntu user experience to the next level.

Posted by Alejandro. Filed under Linux, Ubuntu.

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Some applications like TweetDeck don’t respect gnome preferred applications settings and continue to use the older Firefox 3.1 instead of the new one 3.5 when opening links.

This is because

/usr/bin/firefox is currently pointing (like a shortcut) to

/usr/bin/firefox-3.0

To change this to 3.5 enter the following on the command line

sudo ln -sf /usr/bin/firefox-3.5 /usr/bin/firefox

If you want to change it back:

sudo ln -sf /usr/bin/firefox-3.0 /usr/bin/firefox

This will work for Firefox 3.5 as well as Shiretoko 3.5
This will also fix same issues with other Adobe Air applications

Posted via email from queleimporta

Posted by acuervo. Filed under Firefox, Linux, terminal, Ubuntu.

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To install the scanner of the multifunctional printer MF4270, do the following.

cvs -d :pserver:anonymous@cvs.alioth.debian.org:/cvsroot/sane login
cvs -d :pserver:anonymous@cvs.alioth.debian.org:/cvsroot/sane checkout sane-backends
sudo apt-get install libusb-dev
cd sane-backends/
./configure –prefix=/usr –sysconfdir=/etc –localstatedir=/var
make
sudo make install
cp /etc/udev/rules.d/70-libsane.rules ~/
sudo cp tools/udev/libsane.rules /etc/udev/rules.d/70-libsane.rules
sudo /etc/init.d/udev restart

Test sane version, should be 1.x.xcvs

scanimage -V

add your self to the scanner group

logout and then login.

Done!

For the Printer part follow this guide:

http://queleimporta.com/installing-canon-imageclass-mf4270-on-ubuntu-64-bit/

Posted by Alejandro. Filed under 64-bit, Linux, Ubuntu.

Tags: Canon ImageCLASS 4270, Scanner.

To recover from a frozen linux system

Press and hold down ALT + SysRq (PrintScn) button and type phrase R E I S U B with 1 second interval between each letter.

Your system will magically recover from the crash and reboot itself.

Posted by Alejandro. Filed under Linux, Ubuntu.

Tags: REISUB.