Allows you to enable graphical output at the initrd stage.

Many cloud providers pass metadata via cdrom. Generator used by the
cloud-init to determine a datasource works before loading modules. So cdrom
modules must be loaded in the initrd.
Other linux distributions enable cdrom modules in the kernel.

Enable /proc for build vm/<target> and distro/<target> with use/stage2.
/proc needed for make-initrd >= 2.23.0.
See also https://bugzilla.altlinux.org/40900

This reverts commit 1ca16022.

wmpomme not available in Sisyphus and p10.

This feature has long lost its relevance, as intended for the first
samples of boards Baikal M with very raw UEFI firmware.

Writing zeros to a USB flash drive is not a very useful activity.

The 'splash=0' parameter not only disables splash, but also switches
to tty5 on which plymouth is supposed to run. This looks like a bug
in propagator. 'nosplash' is also a general parameter for propagator
and make-initrd.

This parameter needed for bootloading with initrd-bootchain.
there are currently no network configuration dialogs when booting
with initrd-bootchain.

Request by Speccyfighter.

This is no longer necessary, since the dependencies of
livecd-net-eth.service are fixed, and for sysvinit the
udev-rule-generator is added already.

For install2, this is needed to work around error 99-cdrom.sh with method:cdrom.
The error shows up with make-initrd-bootchain, but not propagator, as lowmem is
enabled for propagator in this mode.
For rescue, the point is that the latter has become quite large, so by default
it would be better that way.

This targets required udev-rule-generator-net.

Need to support initrd-bootchain in e2k feature.

In the future, will need to modify generate.mk so that can set all
the variables in this config.

xorg-dri-virtio was added via REGEXP to work around the package
missing issue on p9. But it didn't work.

use/ntp was broken by commit 7ef157e2

Parameter "legacyboot" causes an error:
parted: invalid token: legacyboot

This is an alternative to the initrd-propagator feature.
bootchain-* is a make-initrd features. You should look at the documentation
for it in the make-initrd-bootchain-* packages:
/usr/share/make-initrd/features/bootchain-*/README.md

Workaround to solve the problem of late appearance of the network
interface.

This reverts commit 8f56e8b9.
We will not decide for everyone. This is a crutch, we will use it
only in our area of responsibility (regular builds).

We will not rename the interfaces. So it's still more reliable.
We will use NetworkManager for all desktops, and livecd-net-eth for jeos.

Adds grub "Network installation" submenu and kernel modules to
initrd needed for network booting.