debian install via own mirror and NFS
I would like to install debian using an own mirror that I set up on an
server which exports the mirror as an NFS share to the local network.
I do a tftpboot/pxelinux netboot on the client machine and boot into the
kernel image provided in the netboot directory
I only get the possibility to select between http and ftp for access to
a mirror but I don't have the possibility to use either of them.
I tried also to manually mount the nfs-share containing the mirror via
the busybox-shell that comes with the installer, but apparently nfs mounts
are not enabled.
NFS-based installation is possible with other linux-distributions
(e.g. openSuSE), so I guess it should be possible with debian as well?
I did a comprehensive web-search but did not find any infos.
Is there a way to do this?