I will start ftpd-topfield automatic, and I type this in mij router wl500g deluxe with telnet.

mkdir /usr/local/root/bin
mkdir /usr/local/sbin/
cp /tmp/harddisk/ftpd-topfield /usr/local/root/bin
chmod a+x /usr/local/root/bin/ftpd-topfield
echo “/usr/local/root/bin/ftpd-topfield -D -P 2021 -t 60 -p /tmp/ftpd-topfield.pid --turbo -–noeplf” >> /usr/local/sbin/post-boot
flashfs save
flashfs commit

and after i have type: flashfs commit, telnet say file is to big <102949, max 65536>

The ftpd-topfield file is 189.540 kb