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gemini: make all tar files more reproducible

Force a fixed sorting and use the parameters to create reproducible
archives for all tar invocations.

Signed-off-by: Mathias Kresin <>
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mkresin committed Jan 25, 2019
1 parent 6491643 commit 1e606edce6f43e7e42fa44809f14ff0d1cb9ab47
Showing with 5 additions and 3 deletions.
  1. +5 −3 target/linux/gemini/image/Makefile
@@ -38,7 +38,9 @@ define Build/dns313-images
dns313-header $(IMAGE_KERNEL) \

tar -czf $@ -C @.tmp .boot
tar --sort=name --owner=0 --group=0 --numeric-owner -czf $@ \
-C $@.tmp .boot \

rm -rf $@.tmp
@@ -57,8 +59,8 @@ define Build/nas4220b-sq201-images
dd if=/dev/zero of=$@-tmp/hddapp.tgz bs=6144k count=1
cp $(IMAGE_KERNEL) $@-tmp/zImage
cp ./ImageInfo-$(1) $@-tmp/ImageInfo
(cd $@-tmp; tar --owner=0 --group=0 --numeric-owner --mtime=@$(SOURCE_DATE_EPOCH) \
-czf $@ ImageInfo zImage rd.gz hddapp.tgz)
(cd $@-tmp; tar --sort=name --owner=0 --group=0 --numeric-owner -czf $@ * \
rm -rf $@-tmp

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