1. Copy "dummy-4.0.1.tar.gz" from "zip" folder to main-directory
2. Unpack "dummy-4.0.1.tar.gz"
3. Rename the folder "dummy-4.0.1" to "0xx" (x=Count Installs)
4. Copy "typo3_src-4.0.1.tar.gz" from "zip" folder to main-directory
5. Unpack "typo3_src-4.0.1.tar.gz"
6. Rename the folder "typo3_src-4.0.1.tar.gz" to 0t3sx (x=Count of Source Folders)
7. Move into folder "0xx"
	Set permissions (as root): 
  	These steps will make four directories writable for the webserver:
  - 0xx/fileadmin/
  - 0xx/typo3conf/
  - 0xx/typo3temp/
  - 0xx/uploads/

    Run these commands as root in the 0xx/ directory:
	    # chgrp -R  fileadmin typo3conf typo3temp uploads
	    # chmod -R g+w,o-rwx fileadmin typo3conf typo3temp uploads
	    ... where  is the name of the group your webserver (i.e. nobody)
	    is running as
8. Delete the symlink with "rm typo3_src"
9. Create a new symlink with "ln -s ../0t3sx typo3_src" and make sure it points to the source
directory.
10. visit in your browser http://[your.site.name]/0xx/
11. If you see the following message then we can continue, otherwise repeat the steps 1-10:
"In the source distribution of TYPO3, the install script is disabled by a die() function call.
Fix: Open the file typo3/install/index.php and remove/out-comment the line that outputs this message!"
12. Move to 0t3sx/typo3/install/index.php and open it in an editor. We remove the die function. To do so outcomment the following passage:

13. visit in your browser again http://[your.site.name]/0xx/
Now the 1 2 3 Install Tool should be visible.
14. follow now exact the 1 2 3 Install Tool
15. If you can't create a database using the installtool, then create an empty database and databaseuser with another tool i.e. phpMyAdmin.

--------------------------------------------------

In INSTALL-TOOL
------------------
$TYPO3_CONF_VARS['GFX']['im_version_5'] = 'im6'
$TYPO3_CONF_VARS['SYS']['sitename'] = 'New Typo3 Site'
$TYPO3_CONF_VARS['SYS']['recursiveDomainSearch'] = '1'
$TYPO3_CONF_VARS['SYS']['curlUse'] = '1'
$TYPO3_CONF_VARS['SYS']['binPath'] = '/home/lisandi/bin/'
$TYPO3_CONF_VARS['SYS']['binSetup'] = 'perl=/usr/bin/perl,unzip=/usr/local/bin/unzip,curl=/usr/bin/curl,tidy=/home/lisandi/bin/tidy'
$TYPO3_CONF_VARS['SYS']['t3lib_cs_convMethod'] = 'mbstring'
$TYPO3_CONF_VARS['SYS']['t3lib_cs_utils'] = 'mbstring'
$TYPO3_CONF_VARS['SYS']['multiplyDBfieldSize'] = '3'
$TYPO3_CONF_VARS['SYS']['setMemoryLimit'] = '32'
$TYPO3_CONF_VARS['SYS']['forceReturnPath'] = '1'
$TYPO3_CONF_VARS['SYS']['serverTimeZone'] = '-5'
$TYPO3_CONF_VARS['SYS']['systemLog'] = 'error_log'
$TYPO3_CONF_VARS['EXT']['noEdit'] = '0'
$TYPO3_CONF_VARS['EXT']['allowGlobalInstall'] = '1'
$TYPO3_CONF_VARS['EXT']['allowSystemInstall'] = '1'
$TYPO3_CONF_VARS['EXT']['requiredExt'] = 'cms,version,lang'
$TYPO3_CONF_VARS['BE']['unzip_path'] = '/usr/local/bin/unzip'
$TYPO3_CONF_VARS['BE']['diff_path'] = '/usr/local/bin/diff'
$TYPO3_CONF_VARS['BE']['lockRootPath'] = '/home/lisandi/www/0t3x/'
$TYPO3_CONF_VARS['BE']['userHomePath'] = '/home/lisandi/www/0t3x/user/'
$TYPO3_CONF_VARS['BE']['groupHomePath'] = '/home/lisandi/www/0t3x/group/'
$TYPO3_CONF_VARS['BE']['userUploadDir'] = '/up/'
$TYPO3_CONF_VARS['BE']['fileCreateMask'] = '0660'
$TYPO3_CONF_VARS['BE']['folderCreateMask'] = '0770'
$TYPO3_CONF_VARS['BE']['createGroup'] = 'nobody'
$TYPO3_CONF_VARS['BE']['warning_email_addr'] = 'ab.becker@web.de'
$TYPO3_CONF_VARS['BE']['warning_mode'] = '1'
$TYPO3_CONF_VARS['BE']['sessionTimeout'] = '36000'
$TYPO3_CONF_VARS['BE']['compressionLevel'] = '9'
$TYPO3_CONF_VARS['BE']['maxFileSize'] = '50000'
$TYPO3_CONF_VARS['BE']['forceCharset'] = 'utf-8'
$TYPO3_CONF_VARS['BE']['trackBeUser'] = '1'
$TYPO3_CONF_VARS['BE']['notificationPrefix'] = '[TYPO3 Note]'
$TYPO3_CONF_VARS['FE']['tidy'] = '1'
$TYPO3_CONF_VARS['FE']['tidy_path'] = '/home/lisandi/bin/tidy -i --quiet true --tidy-mark true -wrap 0 -raw'
$TYPO3_CONF_VARS['FE']['logfile_dir'] = '0t3x/log'
$TYPO3_CONF_VARS['FE']['publish_dir'] = '0t3x/pub'
$TYPO3_CONF_VARS['FE']['addAllowedPaths'] = '0t3x/'
$TYPO3_CONF_VARS['FE']['compressionLevel'] = '9'
--------------------------------------------

This was our first trial

and the we reduced everything but the error stayed even we only installed the 
necessary database in installtool and did nothing else

And after installing an extension gloabally we receive the init.php error