HOWTO : Undelete files and directories on Ubuntu

extundelete is a utility that can recover deleted files from an ext3 or ext4 partition.

Hereby, I am going to show to how to compile and install this utility from source on Ubuntu 10.10. The current version of extundelete is 0.2.0 at this time of writing.

Step 1 :

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential libtool e2fslibs-dev autoconf automake autotools-dev m4 e2fslibs e2fsprogs

wget http://sourceforge.net/projects/extundelete/files/extundelete/0.2.0/extundelete-0.2.0.tar.bz2/download

tar -xvjf extundelete-0.2.0.tar.bz2
cd extundelete-0.2.0
./autogen.sh
./configure
make
sudo make install

Step 1a : (Alternative)

If you want to generate a debian installable file instead of install from source, you can use this step.

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install build-essential libtool e2fslibs-dev autoconf automake autotools-dev m4 e2fslibs e2fsprogs checkinstall

wget http://sourceforge.net/projects/extundelete/files/extundelete/0.2.0/extundelete-0.2.0.tar.bz2/download

tar -xvjf extundelete-0.2.0.tar.bz2
cd extundelete-0.2.0
./autogen.sh
./configure
make
sudo checkinstall

Follow the instruction on screen to complete the debian executable file generation.

sudo dpkg -i extundelete_0.2.0-1_amd64.deb
or
sudo dpkg -i extundelete_0.2.0-1_i386.deb

Step 2 :

Usage :

Help -
extundelete --help

To undelete test.png file at /dev/sda3 and /home/samiux -
extundelete /dev/sda3 --restore-file /home/samiux/test.png

To undelete test directory at /dev/sda3 and /home/samiux -
extundelete /dev/sda3 --restore-directory /home/samiux/test

To undelete all files and directories at /dev/sda3 -
extundelete /dev/sda3 --restore-all

That's all! See you.

HOWTO : Ubuntu 10.04 on Gigabyte TouchNote T1028X

Gigabyte TouchNote T1028X equipped with Intel Atom N280 and eGalax touch screen. It runs Ubuntu 10.04 flawlessly except touchpad and touchscreen. This tutorial is telling you how to overcome these problems.

"lsusb" shows the following :

Bus 005 Device 002: ID 0eef:0001 D-WAV Scientific Co., Ltd eGalax TouchScreen

Step 1 :

Boot up the system and press "Ctrl+Alt+F2" to go to command prompt.

sudo nano /etc/default/grub

Append "i8042.noloop=1 usbhid.quirks=0xeef:0x1:0x40" to "GRUB_CMDLINE_LINUX_DEFAULT".

*where i8042.noloop=1 solves the touchpad probem.

It will look like this :

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash i8042.noloop=1 usbhid.quirks=0xeef:0x1:0x40"

Save and exit.

sudo update-grub

Step 2 :

sudo nano /etc/modprobe.d/blacklist.conf

Append the following to the file.

blacklist usbtouchscreen

Step 3 :

sudo nano /usr/lib/X11/xorg.conf.d/05-evdev.conf

Append the following to the file.

Section "InputClass"
   Identifier "eGalax"
   MatchProduct "eGalax"
   MatchDevicePath "/dev/input/event*"
   Driver "evdev"
   Option "SwapAxes" "off"
   Option "Calibration" "2 4100 11 4099"
EndSection

The value of calibration is "2 4100 11 4099" is perfect on my Gigabyte TouchNote T1028X (resolution 1366 x 768). However, you can change the value after doing Step 6 when necessary.

Step 4 :

sudo apt-get update
sudo apt-get install build-essential libgtkmm-2.4-dev autoconf libtool

Go to "http://github.com/tias/xinput_calibrator/downloads" and download the latest version of xinput-calibrator. The current version at this writing is 0.6.1.

tar -xvzf tias-xinput_calibrator-v0.6.1-0-gd2ce98b.tar.gz

cd tias-xinput_calibrator-d2ce98b
./autogen.sh
./configure
make
sudo make install

Step 4a (Optional) :

Or, you can build your debian package by using checkinstall.

sudo apt-get update
sudo apt-get install build-essential libgtkmm-2.4-dev autoconf libtool checkinstall

Go to "http://github.com/tias/xinput_calibrator/downloads" and download the latest version of xinput-calibrator. The current version at this writing is 0.6.1.

tar -xvzf tias-xinput_calibrator-v0.6.1-0-gd2ce98b.tar.gz

cd tias-xinput_calibrator-d2ce98b
./autogen.sh
./configure
make
sudo checkinstall

Follows the instructions on the screen provided to generate your debian package.

Then install the package by using "sudo dpkg -i package_name.deb".

Step 5 :

Reboot your system.

Step 6 (Optional) :

To calibration your system and edit the value to Step 3 when necessary.

xinput_calibrator_x11

That's all! See you.