[FLOW3-general] Install Problem - setfilepermissions does not work

[Mathis Hoffmann]

Hello,

I've got a Problem installing FLOW3 on my virtual Server. I downloaded
the package and unpacked it. Then I tried to call
./flow3 core:setfilepermissions root www-data psacln

That results in:
PHP Deprecated:  Comments starting with '#' are deprecated in
/etc/php5/cli/conf.d/imap.ini on line 1 in Unknown on line 0
PHP Deprecated:  Comments starting with '#' are deprecated in
/etc/php5/cli/conf.d/mcrypt.ini on line 1 in Unknown on line 0
PHP Warning:  Directive 'safe_mode' is deprecated in PHP 5.3 and
greater in Unknown on line 0
sh: /setfilepermissions.sh: No such file or directory

In order to find out, where the system searches for
setfilepermissions.sh I added the line
exit(__DIR__);

to /Packages/Framework/TYPO3.FLOW3/Scripts/flow3.php and found out
that __DIR__ points to the basedir of the FLOW3 installation and not
to /Packages/Framework/TYPO3.FLOW3/Scripts/ where the script is
located. Therefore I manually ran the script using
./Packages/Framework/TYPO3.FLOW3/Scripts/setfilepermissions.sh root
www-data psacln

command. The script outputs
FLOW3 File Permission Script

Checking permissions from here upwards.
Making sure Data and Web/_Resources exist.
Setting file permissions, trying to set ACLs via chmod ...
Setting file permissions, trying to set ACLs via setfacl ...

Note: Access Control Lists seem not to be supported by your system.

Setting file permissions per file, this might take a while ...
Done.

Looks fine.. But still does not work at all. When I call /Web in my
browser I get an 403 Forbidden You don't have permission to access
/FLOW3-1.0.2/Web on this server.

What can I do?
www-data is definitly the webserver user and psacln the
webserver-group. I don't have an extra command line user and therefore
added root as first argument.

Any suggestions?

Thanks in advance!
M. Hoffmann