Problem installing VIRTUEMART in Joomla!2.5.4 With UBUNTU

[rbatista]

Hi
I have a local computer with 2GB RAM and 80GB HDD were I installed Ubuntu 12.04 (32 bits) and I am using it like a server.

I have installed Joomla!2.5.4

I have this :
WEB SERVER
Apache/2.2.22 (Ubuntu)
MySQL client version: 5.5.22
PHP extension: mysqli
phpMyAdmin : Version Information: 3.4.10/1dbe1

I have installed BreezingForms, Extplorer, K2 without any kind of problem.
But now I am trying to install VirtueMart 2.0.6 stable and I can not do it
I unzipped it and I got the Dirs com_virtuemart.2.0.6.tar.gz and com_virtuemart.2.0.6_ext_aio.tar.gz

I put those two Dirs at var/www/tmp  and using the Extension Manager:Install  --> Upload Package File  --> I select com_virtuemart.2.0.6.tar.gz
and I always receive the same message at the Browser (after 1 minute or so) "/localhost/administrator/index.php?option=com_installer&view=install"  but the page look totaly in blank (nothing showing)

If I use :
Install from Directory
Install Directory  ./tmp   --> Then it shows me this message :
"JInstaller:Install: Cannot find XML setup file... Path does not have a valid package."

I put those files in the following directories :
../tmp
../var/tmp
../var/www/tmp
And nothing is working

*- I have used "sudo chmod 777 "  to all the Directories

*- I modified the files :
/etc/php5/cli/php.ini
/etc/php5/apache2/php.ini
and put this :
max_execution_time = 360

And still Nothing is working...
What's wrong with me ?

Thanks for any help !!!

[gyroglm]

Joomla! install looks for .zip files on your PC, or the unpacked files in its tmp directory.
Unless you have installed Joomla! directly in /var/www, the directory would be /var/www/<path to site>/tmp - but...
you have to unpack them first:
  tar -zxf com_virtuemart.2.0.6.tar.gz

The method I use, on the PC and using 7-zip, is:
  unzip the original into the .tar.gz files
  extract the tar contents of each file to a directory
  build a .zip file of those directories
  use the Joomla! 'Install' method & browse to those .zip files