From d90130728e854342e10ec696267dee31898e12f1 Mon Sep 17 00:00:00 2001
From: constrain <constrain@buntu.(none)>
Date: Tue, 7 Jan 2014 20:21:03 +0100
Subject: [PATCH 1/2] Substituted hardcoded loop device path with generic loop
 devices Now only if all loop devices are in use an error can occur

---
 build.sh | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/build.sh b/build.sh
index 0216d6e..7158438 100644
--- a/build.sh
+++ b/build.sh
@@ -101,30 +101,28 @@ make -j2 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- INSTALL_HDR_PATH=output hea
 #--------------------------------------------------------------------------------
 echo "------ Creating SD Images"
 cd $DEST/output
-# create 1Gb image and mount image to /dev/loop0
+# create 1Gb image and mount image to next free loop device
 dd if=/dev/zero of=debian_rootfs.raw bs=1M count=1000
-umount -l /dev/loop0 || true
-umount -l /dev/loop1 || true
-losetup -d /dev/loop0 || true
-losetup -d /dev/loop1 || true
-losetup /dev/loop0 debian_rootfs.raw 
+LOOP0=$(losetup -f)
+losetup $LOOP0 debian_rootfs.raw 
 
 echo "------ Partitionning and mounting filesystem"
 # make image bootable
-dd if=$DEST/u-boot-sunxi/u-boot-sunxi-with-spl.bin of=/dev/loop0 bs=1024 seek=8
+dd if=$DEST/u-boot-sunxi/u-boot-sunxi-with-spl.bin of=$LOOP0 bs=1024 seek=8
 
 # create one partition starting at 2048 which is default
-(echo n; echo p; echo 1; echo; echo; echo w) | fdisk /dev/loop0 >> /dev/null || true
+(echo n; echo p; echo 1; echo; echo; echo w) | fdisk $LOOP0 >> /dev/null || true
 # just to make sure
 partprobe
 
+LOOP1=$(losetup -f)
 # 2048 (start) x 512 (block size) = where to mount partition
-losetup -o 1048576 /dev/loop1  /dev/loop0
+losetup -o 1048576 $LOOP1 $LOOP0 
 # create filesystem
-mkfs.ext4 /dev/loop1
+mkfs.ext4 $LOOP1
 # create mount point and mount image 
 mkdir -p $DEST/output/sdcard/
-mount /dev/loop1 $DEST/output/sdcard/
+mount $LOOP1 $DEST/output/sdcard/
 
 
 
@@ -252,7 +250,7 @@ cp nand-part $DEST/output/sdcard/usr/bin/
 rm $DEST/output/sdcard/usr/bin/qemu-arm-static 
 # umount images 
 umount $DEST/output/sdcard/ 
-losetup -d /dev/loop1 
-losetup -d /dev/loop0
+losetup -d $LOOP1
+losetup -d $LOOP0
 # compress image 
 gzip $DEST/output/*.raw

From 3f41a3da6844546f6b6c7f4d2b58fe27d462ccb6 Mon Sep 17 00:00:00 2001
From: ownedcore <constrain@buntu.(none)>
Date: Tue, 7 Jan 2014 20:27:30 +0100
Subject: [PATCH 2/2] Only reread partition table of specific loop device. Bug
 with fake raid devices

---
 build.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.sh b/build.sh
index 7158438..9ccbadb 100644
--- a/build.sh
+++ b/build.sh
@@ -113,7 +113,7 @@ dd if=$DEST/u-boot-sunxi/u-boot-sunxi-with-spl.bin of=$LOOP0 bs=1024 seek=8
 # create one partition starting at 2048 which is default
 (echo n; echo p; echo 1; echo; echo; echo w) | fdisk $LOOP0 >> /dev/null || true
 # just to make sure
-partprobe
+partprobe $LOOP0
 
 LOOP1=$(losetup -f)
 # 2048 (start) x 512 (block size) = where to mount partition