[3/5] init-install: Clean up partition alignment

Submitted by Darren Hart on July 4, 2012, 4:34 a.m. | Patch ID: 31141


Message ID 8740075dcc688c9b06a7b52d8afe558da583c66c.1341376182.git.dvhart@linux.intel.com
State Accepted
Commit 8aac6ecc5194c734dfd3d677017ab3ea045b2339
Headers show

Commit Message

Darren Hart July 4, 2012, 4:34 a.m.
The current partitioning scheme leaves a 1MB gap between all the
generated partitions by adding a 1 to the end of the last partition to
use as the start of the next. parted is smart enough to not overlap
start and end positions of the same value. This avoids the 1 MB gaps.

Rather than pad the disk with 1MB in the beginning and cut it off at the
MB boundary on the end, we can use 0% and 100% to allow parted to do the
required math and use as much of the disk as possible.

Signed-off-by: Darren Hart <dvhart@linux.intel.com>
 .../initrdscripts/files/init-install.sh            |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

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diff --git a/meta/recipes-core/initrdscripts/files/init-install.sh b/meta/recipes-core/initrdscripts/files/init-install.sh
index 8d21dd1..0ac4949 100644
--- a/meta/recipes-core/initrdscripts/files/init-install.sh
+++ b/meta/recipes-core/initrdscripts/files/init-install.sh
@@ -84,9 +84,9 @@  disk_size=$(parted /dev/${device} unit mb print | grep Disk | cut -d" " -f 3 | s
-rootfs_start=$((boot_size + 1))
 # MMC devices are special in a couple of ways
 # 1) they use a partition prefix character 'p'
@@ -113,13 +113,13 @@  echo "Creating new partition table on /dev/${device} ..."
 parted /dev/${device} mklabel msdos
 echo "Creating boot partition on $bootfs"
-parted /dev/${device} mkpart primary 1 $boot_size
+parted /dev/${device} mkpart primary 0% $boot_size
 echo "Creating rootfs partition on $rootfs"
 parted /dev/${device} mkpart primary $rootfs_start $rootfs_end
 echo "Creating swap partition on $swap"
-parted /dev/${device} mkpart primary $swap_start $disk_size
+parted /dev/${device} mkpart primary $swap_start 100%
 parted /dev/${device} print