Problem upgrading to last version

[trustno12003]

Hello
today I have tried to upgrade to the last version of calibre, I had version 0.4.102, using the binary installer. It downloads the file but then it has a postinstallation issue:

[root@localhost ~]# python -c "import urllib2; exec urllib2.urlopen('http://calibre.kovidgoyal.net/download_linux_binary_installer').read(); main()"
Enter the installation directory for calibre (Its contents will be deleted!)[/opt/calibre]:
                             Downloading calibre...
100% [======================================================================]
Extracting files to /opt/calibre ...
Extracting application files...
/opt/calibre/calibre_postinstall: line 7: 25374 Instrucción ilegal     $loader "$@"

I'm using Mandriva 2009.

Best Regards