Problems and their solutions: VSF5011 Finger Print Reader Installation Dell Vostro 3550 and others.

Comment 21 @ https://bugs.launchpad.net/ubuntu/+source/libfprint/+bug/790183

It's really easy to install this library.

1. Install al needed packages: (list may be changed)

:~$ sudo apt-get install libperl-dev libgtk2.0-dev libusb-1.0-0-dev libnss3-dev

2. Download full source tree archive: https://github.com/ars3niy/fprint_vfs5011/archive/master.zip:

:~$ wget https://github.com/ars3niy/fprint_vfs5011/archive/master.zip

3. Unzip archive:

:~$ unzip ./master.zip

4. Open unziped folder:

:~$ cd ./fprint_vfs5011-master

5. Configure

:~$ ./configure

6. Make package

:~$ make

7. Install package

:~$ sudo make install

8. Install fprint demo

:~$ sudo apt-get install fprint-demo fprintd fprintd-doc libfprint0

9. Invoke fprint demo with root privileges

:~$ sudo fprint_demo

On following the steps many errors were encountered. Such encounters and the counter measures are listed below.

Problem: ./configure: command not found

Solution: bash autogen.sh

P: libtoolize: command not found

S: sudo apt-get install libtool

P: aclocal:command not found

S: apt-get install automake

P: configure: error: XV is required for X11 examples

S: sudo apt-get install xorg-dev

P: make error:  underfined reference to variable g_str_equal

S: http://debian.2.n7.nabble.com/Bug-710381-libfprint-ftbs-with-ld-no-add-needed-td2959787.html

downlaod the .patch and then run it using the command

patch < /home/karthik/Downloads/link-against-glib.patch

Finally installing the Fingerprint GUI

details given @ http://www.omgubuntu.co.uk/2013/03/how-to-get-your-fingerprint-reader-working-in-ubuntu

if “could not open fingerprint device permission problem”

then $ sudo fingeprint-gui

To add fingerprint verficatio to login screen

Instructions @ http://www.thinkwiki.org/wiki/How_to_enable_integrated_fingerprint_reader_with_fprint

sudo add-apt-repository ppa:fingerprint/fprint

sudo apt-get install libpam-fprintd

$ grep fprint /etc/pam.d/common-auth

The needed lines in common-auth should now be present.

Result:

auth    [success=2 default=ignore]      pam_fprintd.so

Run:

fprintd-enroll

To eliminate fingerprint authentication from the display manager login do the following.

sudo cp /etc/pam.d/common-auth /etc/pam.d/common-auth-nofinger

sudo gedit /etc/pam.d/common-auth

and comment out the line

“auth [success=3 default=ignore] pam_fprintd.so"

Save and Quit

At last, after a gruelling 4Hrs of key clicking, it’s done. Authentication to all ‘sudo’ commands now possible through a simple finger print scan. Linux, you just made by day. Good for me. Now let the world enjoy this.