modloopfw will add additional firmware to the modloop image
to work around not beeing detected by modinfo.

the setup-udev script is provided by eudev

prevent to exit with error due to set -e, if last firmware does not have
a *.txt file.

When -q option is specified:
- skip set root password
- auto configure network (dhcp)

this option will configure dhcp on first interface found which is "up"

remove variable that is not needed

replaced the awk script with tee-sort-head-cut magic

In z/VM environment
ECKD DASDs need to be low-level formatted with dasdfmt and fdasd before
use. These devices don't have partition ids.
FBA DASDs are like normal disks - usable with sfdisk/fdisk - and have
partition ids.
Software raid and LVM on multiple devices are not supported at the
moment. Users could install with LVM on single disk and extend logical
volume to second disk.

In KVM environment
Virtual SCSI disks (virtio) are used which are like normal disks.

Bootloader is zipl from s390-tools package.

This commit introduces setup-dasd.in for DASD functions.

Previously the vanilla kernel did not add any suffix to System.map,
config and vmlinuz for the vanilla kernel, but it does now. Fix
update-kernel to handle both cases.

Note also that /lib/modules/$ver still does not have any -vanilla
suffix.

fixes #8108

the metadata for the raid on boot partition will be at the end of
device, so it will work to boot. It is also tested and works.

We want have fewer features in the initfs and only add those that are
needed and detected.

This is a revert of 25c4933f

we fix this by unsetting BOOTLOADER for all data only setups.

also fix potential issue where we may have multiple swap devices

- uniso now properly checks freespace early
- it runs fdatasync, is interruptible, and few seconds faster
- no loop back mounting required

* This helps uniso to take majority of the io wait time for writing
  files to disk. And allows aborting setup-bootable when using uniso.
* Makes uniso abort earlier if disk is too low.