to use NFS as a remote root append to the kernel root="server_ip":"remote_share" rootfstype=nfs rootflags="root_mounting_flags_as_needed"
via this method is possible to add support to other protocols like gluster or ceph just by adding the required modules and files via feature.d, the compilation of the new initramfs and specifying the correct rootfstype
removed old ifconfig code and replaced with ip from iputils
since ifconfig is a deprecated utility and is replaced by iputils, by switching to iputils it brings more consistency to the code (part of it was already using it) and it will ease maintenance due to the fact that ifconfig will become more and more unknown
removed unused local variable "i" in the "unpack_apkvol" function