This feature complements the live image of the second stage with installation
image-specific settings and scripted hooks.

It is recommended to connect using +live-installer to ensure that a typical set
of installer-related features is included.

Unlike the install2 feature, a separate image of the second stage of 'altinst'
is not built, but the live image is supplemented with installer packages in
order to reduce the total volume of the iso image.

Installation consists of two stages:
1. The live image is unpacked, as in livecd-install
2. Install additional packages BASE_PACKAGES and package groups THE_GROUPS as in install2.

Unlike install2, only those packages that are not in the live image are placed in the main repository. This is how the size of the iso image is reduced.

The parameter 'nosplash' must come before the splash argument.

I've just borrowed glebfm@'s one introduced by commit
ec23a8ec before; this
still might be improved it seems.
Suggested-by: Gleb Fotengauer-Malinovskiy <glebfm@altlinux.org>

These happened to collide after initial copypaste
of 20install2.cfg snippet, spotted that recently.

Was broken in too many places including several libraries
x11vnc currently links against getting removed, several
utilities missing, and no way to guess what to do...

One could stumble upon http://altlinux.org/vncinst
or find the implementation in installer.git but it's
not exactly user-friendly.