#!/bin/bash
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh

# We depend on network modules being loaded
[ "$1" = "-d" ] && echo network

# If our prerequisites are not met, fail anyways.
type -P iscsistart hostname iscsi-iname >/dev/null || exit 1

# If hostonly was requested, fail the check if we are not actually
# booting from root.

. $dracutfunctions

[[ $debug ]] && set -x

is_iscsi() ( 
    [[ -L /sys/dev/block/$1 ]] || return
    cd "$(readlink -f /sys/dev/block/$1)"
    until [[ -d sys || -d iscsi_session ]]; do
        cd ..
    done
    [[ -d iscsi_session ]]
)

case $1 in
    -h) rootdev=$(find_root_block_device)
        if [[ $rootdev ]]; then
            # root lives on a block device, so we can be more precise about 
            # hostonly checking
            check_block_and_slaves is_iscsi "$rootdev" || exit 1
        else
            exit 1
        fi ;;
esac

exit 0