Bug#279090: No 2nd stage after installation with netinst CD using network-console

[Frans Pop <aragorn@tiscali.nl>]

Package: debian-installer
Severity: important

There are two separate problems which result in a broken installation if a 
user uses network-console during 1st stage installation after booting 
with the netinst CD.
(If I install using a businesscard CD, the installation runs fine.)

This was tested using i386 netinst CD (daily build from 20041029).
Procedure:
- boot qemu using netinst CD debconf/priority=medium
- proceed in qemu; select network-console in 'Load installer components'
- configure network, configure network-console
- log into installer using ssh from terminal on normal machine
- continue rest of 1st stage installation from ssh

After 'rebooting' the installed system in qemu, I only get a login prompt 
(base-config is not run because /etc/inittab is not modified for that).
Also, I can not login to the system using ssh (as ssh is not installed).

PROBLEM 1
=========
The prebaseconfig script from network-console fails quietly because the 
command 'apt-install network-console-config' fails as this package and 
ssh (on which it depends) are not available on the netinst CD.

PROBLEM 2
=========
Syslog shows:
   info: Running /usr/lib/prebaseconfig.d/90prepare-base-config
   warning: /usr/lib/prebaseconfig.d/90prepare-base-config returned \
   error code 1

I have not yet traced the exact cause of this error (will try to follow up 
later), but the result is that /etc/inittab is not configured to run 
base-config.
I think this is a structural problem when prebaseconfig is run from ssh 
that has been overlooked until now.

SOLUTION
========
- network-console's prebaseconfig script should test the result of
  apt-install and display a message (probably suggesting to run
  base-config from the machine's console) if it failed
- prepare-base-config should be fixed to not fail when prebaseconfig
  is run from ssh

However, this would probably result in base-config being started after the 
reboot, which is not what we want (we want it to be run from ssh if 
possible). So we need the following additional changes:
- network-console's prebaseconfig script should set a flag somewhere that
  indicates if network-console-config and ssh were installed correctly
- prepare-base-config should test this flag and _not_ modify /etc/inittab
  if and only if network-console-config and ssh were installed correctly

I'm not sure if network-console-config and ssh should be included on the 
netinst CD, but I guess they should both be included on the first full CD 
in an official set.