Bug#257883: netcfg: Please offer to configure all network interfaces

[Matt Taggart <taggart@debian.org>]

Regarding #257883, "netcfg: Please offer to configure all network
interfaces" (wow old bug!) I would also like d-i to let me configure
multiple network interfaces. It would be nice if it prompted in
expert mode, but since I'm already using preseeding I'd settle for a
way to configure additional interfaces using late_command or something.
Maybe netcfg could have a flag to indicate you were configuring an
additional interface and not to step on the original config?

In case it's useful here's my use case:

All our machines have two networks, a public network and a private
network. To install I pxe boot a machine using the private network
and it gets a throw-away dhcp IP, then loads the preseed file. Then I
use the preseed/run trick mentioned in the manual to cause netcfg to
run again and prompt me for the real static config of the private
network. Then it finishes the install using that new config, but I'd
also like to configure the public network before rebooting. Also
potentially tricky is after configuring the public network I want
the default gateway to be on the public network.

Work-arounds welcome.

Thanks,

-- 
Matt Taggart
taggart@debian.org