begin to write down how to create iso

Signed-off-by: Nico Schottelius <nico@wurzel.schottelius.org>

hacking/create_iso.sh

+#!/bin/sh
+
+# FIXME: include os explorer to name preos
+
+indir=./iso
+
+version=0.3
+out=preos-${version}.iso
+
+genisoimage -r  -V "cdist preos v0.2" \
+    -cache-inodes -J -l  \
+    -no-emul-boot \
+    -boot-load-size 4 -b isolinux.bin -c boot.cat \
+    -o cdist-preos.iso $indir