dracut: make sure getarg function is defined.

dracut/vmklive-adduser.sh

@@ -2,6 +2,8 @@
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
 
+type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
+
 USERNAME=$(getarg live.user)
 [ -z "$USERNAME" ] && USERNAME=anon
 

dracut/vmklive-conf.sh

@@ -2,6 +2,8 @@
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
 
+type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
+
 KEYMAP=$(getarg vconsole.keymap)
 FONT=$(getarg vconsole.font)
 FONT_MAP=$(getarg vconsole.font.map)

dracut/vmklive-display-manager-autologin.sh

@@ -2,6 +2,8 @@
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
 
+type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
+
 USERNAME=$(getarg live.user)
 [ -z "$USERNAME" ] && USERNAME=anon
 

dracut/vmklive-polkit.sh

@@ -2,6 +2,8 @@
 # -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
 # ex: ts=8 sw=4 sts=4 et filetype=sh
 
+type getarg >/dev/null 2>&1 || . /lib/dracut-lib.sh
+
 USERNAME=$(getarg live.user)
 [ -z "$USERNAME" ] && USERNAME=anon