This initramfs script detects the matching rootfs tarball on attached external disk devices, autodetects if it should unpack to internal or external target, formats the target partition and unpacks the tarball.
subsequently the basic hardware configuration of the system is done, and a reboot into an oem-config session is triggered.
do not use this package on normal systems; it is solely for creating initrd-based tarball installer images and requires accompanying changes in the used image build system.