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-rw-r--r--pkgs/build-support/docker/default.nix2
-rwxr-xr-xpkgs/build-support/docker/store-path-to-layer.sh1
2 files changed, 2 insertions, 1 deletions
diff --git a/pkgs/build-support/docker/default.nix b/pkgs/build-support/docker/default.nix
index ef93c97fd4d..344f1abc8b2 100644
--- a/pkgs/build-support/docker/default.nix
+++ b/pkgs/build-support/docker/default.nix
@@ -349,7 +349,7 @@ rec {
       # Tar up the layer and throw it into 'layer.tar'.
       echo "Packing layer..."
       mkdir $out
-      tar -C layer --sort=name --mtime="@$SOURCE_DATE_EPOCH" --owner=${toString uid} --group=${toString gid} -cf $out/layer.tar .
+      tar --transform='s|^\./||' -C layer --sort=name --mtime="@$SOURCE_DATE_EPOCH" --owner=${toString uid} --group=${toString gid} -cf $out/layer.tar .
 
       # Compute a checksum of the tarball.
       echo "Computing layer checksum..."
diff --git a/pkgs/build-support/docker/store-path-to-layer.sh b/pkgs/build-support/docker/store-path-to-layer.sh
index ff814c1f613..4cf338b9b25 100755
--- a/pkgs/build-support/docker/store-path-to-layer.sh
+++ b/pkgs/build-support/docker/store-path-to-layer.sh
@@ -9,6 +9,7 @@ layerPath="./layers/$layerNumber"
 echo "Creating layer #$layerNumber for $@"
 
 mkdir -p "$layerPath"
+tar --no-recursion -rf "$layerPath/layer.tar" /nix /nix/store
 tar -rpf "$layerPath/layer.tar" --hard-dereference --sort=name \
     --mtime="@$SOURCE_DATE_EPOCH" \
     --owner=0 --group=0 "$@"