Install ispconfig work with lenny 5.0.1

[webschiff]

Some have guaranteed the problem that no longer ispconfig debian lenny installed. It appears then following message:

Notice: Undefined variable: distver in /tmp/ispconfig3_install/install/lib/install.lib.php on line 135
Notice: Undefined variable: distid in /tmp/ispconfig3_install/install/lib/install.lib.php on line 135
Notice: Undefined variable: distbaseid in /tmp/ispconfig3_install/install/lib/install.lib.php on line 135
Linux Distribution or Version not recognized.didon:/tmp/ispconfig3_install/install#

Here is the solution:
open:
/tmp/ispconfig3_install/install/lib/install.lib.php
replace in line 73:

if(trim(file_get_contents('/etc/debian_version')) == '5.0' || trim(file_get_contents('/etc/debian_version')) == 'lenny/sid') {

with:
if(substr(trim(file_get_contents('/etc/debian_version')),0,3) == '5.0' || trim(file_get_contents('/etc/debian_version')) == 'lenny/sid') {

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for developer:
To "Notice: Undefined variable:" to prevent the creators of ISPConfig3 still in the line 62 down under $distname = ";
add:
$distver = '';
$distid = '';
$distbaseid = '';
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