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| author | Ed Bartosh <ed.bartosh@linux.intel.com> | 2016-04-28 13:58:10 +0300 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2016-05-06 10:30:56 +0100 |
| commit | 7f21427aca5df81d8881027fd98f71b821cf31d7 (patch) | |
| tree | 1883b650a0e937692508ab2e5a6c1ecf2645ed40 /scripts/lib/wic | |
| parent | bfde62bdc03152a4d3d383512479b974fa867f94 (diff) | |
| download | openembedded-core-7f21427aca5df81d8881027fd98f71b821cf31d7.tar.gz openembedded-core-7f21427aca5df81d8881027fd98f71b821cf31d7.tar.bz2 openembedded-core-7f21427aca5df81d8881027fd98f71b821cf31d7.zip | |
wic: use sparse_copy to copy partitions
Copied partition images into final partitioned image using
sparse_copy API. This method preserves sparseness of the
final image. It also makes wic much faster, as unmapped
blocks of the partition images are not copied.
[YOCTO #9099]
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/lib/wic')
| -rw-r--r-- | scripts/lib/wic/utils/partitionedfs.py | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/scripts/lib/wic/utils/partitionedfs.py b/scripts/lib/wic/utils/partitionedfs.py index 4170ec1918..534635b2ac 100644 --- a/scripts/lib/wic/utils/partitionedfs.py +++ b/scripts/lib/wic/utils/partitionedfs.py @@ -22,6 +22,7 @@ import os from wic import msger from wic.utils.errors import ImageError from wic.utils.oe.misc import exec_cmd, exec_native_cmd +from wic.filemap import sparse_copy # Overhead of the MBR partitioning scheme (just one sector) MBR_OVERHEAD = 1 @@ -343,10 +344,7 @@ class Image(object): source = part['source_file'] if source: # install source_file contents into a partition - cmd = "dd if=%s of=%s bs=%d seek=%d count=%d conv=notrunc" % \ - (source, image_file, self.sector_size, - part['start'], part['size']) - exec_cmd(cmd) + sparse_copy(source, image_file, part['start'] * self.sector_size) msger.debug("Installed %s in partition %d, sectors %d-%d, " "size %d sectors" % \ |