Bug#342076: installation-guide: should give the right path to TFTP root directory

[Franco Vecchiato <franco.vecchiato@fastwebnet.it>]

As Ross and Christian wrote, paths in
http://d-i.alioth.debian.org/manual/en.i386/ch04s06.html are wrong; 
IMHO it could be sufficient the following change in par. 4.6.2.1, from
the original

group {
 next-server 192.168.1.3;
 host tftpclient {
# tftp client hardware address
  hardware ethernet  00:10:DC:27:6C:15;
  filename "/tftpboot/pxelinux.0";
 }
}

to

group {
 next-server 192.168.1.3;
 host tftpclient {
# tftp client hardware address
  hardware ethernet  00:10:DC:27:6C:15;
  filename "pxelinux.0";
 }
}

in dhcpd.conf (only change the value of the filename parameter).
I tried this configuration with the suggested packages of tftp and dhcp
servers now available in testing; this way works.

Merry Christmas

Franco Vecchiato