Suggested by Kirill Izmestev felixz@.

Can't set an empty variable, so this didn't work before.
Also nouveauu should have been specified as a fallback option (try).

Does not work on non-x86 arches.

To remove rescue packages after live installation.

Now it can be done (extra packages will be removed during
installation).
For systemd only.

They will be installed livecd-rescue-base-utils.

This allows to add a target to distributions that are installed
from squash (the package and its dependencies will be removed).

Since p11 locale C.UTF-8 is part of glibc-core.
For older branches C.UTF-8 is part of glibc-locales.

The list can be use in live without Rescue.
Package livecd-rescue has a dependency on rescue-launcher.

The image already contains systemd-networkd, so it makes sense to
add systemd-timesyncd.

Now in live-rescue required to enter root login.
Empty pawwd for root is default for live.

This reverts commit 186e1a73.
If livecd-user is installed at it is dangerous, can connect via ssh
to root with any password.

It seems unnecessary...
As well wimtools depends on syslinux.

Link: https://bugzilla.altlinux.org/52904

To build initrd from live if necessary.

Now qmmp is qmmp2 (qt6).

Set locale C.UTF-8 in sub.in/rootfs/00-lang-C (fallback).
When use/l10n set locale in rootfs/image-scripts.d/50-l10n-sysconfig.

Otherwise only en_US will be available.

NB: GRUB_SERIAL_COMMAND no need to configure on non-x86 platforms.

Do not use locale of ssh clients.
We only have a couple of locales available.

Now the default locale is C.UTF-8. This is what need.

Must be added together with the livecd-setlocale package
(list tagged/desktop+live).

Now C.UTF-8 in glibc, but not in p10.

This reverts commit d359efb0.

We only have a couple of locales available.

This reverts commit a7b7f34b.
This was too much. We just need to leave the C locale as well.

apt-get autoremove is deleted, after which building failed.

After a few months, the disk repository may become incompatible
with online repositories and cause problems.

This is expected behavior for Live. Cleanup it by default. Disable
cleanup as needed.