From 4b8973dce870473fb15b9cf4776bb80cee5176ac Mon Sep 17 00:00:00 2001
From: Guilhem Moulin <guilhem@fripost.org>
Date: Mon, 7 Oct 2013 06:29:13 +0200
Subject: Partitioning.

---
 pre-partman.sh | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/pre-partman.sh b/pre-partman.sh
index c0cebee..527299a 100755
--- a/pre-partman.sh
+++ b/pre-partman.sh
@@ -160,6 +160,41 @@ if [ x"$RET" != x"none" ]; then
 fi
 
 
+##############################################################################
+# Partitioning
+
+anna-install parted-udeb
+dev=/dev/sda
 
+offset=`cat /sys/block/${dev#/dev/}/alignment_offset`
+bs=`cat /sys/block/${dev#/dev/}/queue/physical_block_size`
 
+if [ $offset -eq 0 ]; then
+    offset=64
+else
+    offset=$(( $offset / $bs ))
+fi
+
+parted            -sm $dev mklabel gpt
+grain=$(( 256*32 ))
+# All offset2's must be multiple of 256*32 = 8192
+if [ -d /proc/efi ] || [ -d /sys/firmware/efi ]; then
+    offset2=$(( 256 * 1024**2 / $bs ))
+    offset2=$(( $offset2 - $offset2 % $grain ))
+    parted -a minimal -sm $dev mkpart uefi ${offset}s $(( $offset2 - 1 ))s
+    offset=$offset2
+    offset2=$(( $offset + 64 * 1024**2 / $bs ))
+    offset2=$(( $offset2 - $offset2 % $grain ))
+    parted -a minimal -sm $dev mkpart boot ${offset}s $(( $offset2 - 1))s
+    parted -sm $dev set 1 boot on
+else
+    offset2=$(( 64 * 1024**2 / $bs ))
+    parted -a minimal -sm $dev mkpart boot ${offset}s $(( $offset2 - 1))s
+fi
+offset=$offset2
+offset2=$(( `cat /sys/block/${dev#/dev/}/size` - 1 ))
+offset2=$(( $offset2 - $offset2 % $grain ))
+parted -a optimal -sm $dev mkpart system ${offset}s $(( $offset2 - 1))s
+system=${dev}$(parted -sm $dev p | grep -m 1 '^[1-9][0-9]*:.*:system:[^:]*;$' | sed 's/:.*//')
+parted -sm $dev align-check opt ${system#$dev}
 
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