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ddc06e4be1
This script preserves the root file system metadata as much as possible between the specified image and the latest shipping image. It preserves the metadata by ensuring that the files reuse the same inodes and that they are located at the same physical location on-disk. This leads to smaller auto-update delta payload and less disk reshuffling, extending the life of the SSD. It is called before the image is signed during the stamping process. Currently, this only supports x86-mario. This is a continuation of a previous CL located at: http://codereview.chromium.org/6058006/ BUG=chromium-os:10188 TEST=Build image, boot image, auto-update to new image, run suite_Smoke Change-Id: I3270245dc15a074abb3bac250922c30e2e105f92 Review URL: http://codereview.chromium.org/6079004