diff options
Diffstat (limited to 'nixpkgs/nixos/lib/make-ext4-fs.nix')
| -rw-r--r-- | nixpkgs/nixos/lib/make-ext4-fs.nix | 42 |
1 files changed, 22 insertions, 20 deletions
diff --git a/nixpkgs/nixos/lib/make-ext4-fs.nix b/nixpkgs/nixos/lib/make-ext4-fs.nix index 627ac324cf5..33dbc8f5ec4 100644 --- a/nixpkgs/nixos/lib/make-ext4-fs.nix +++ b/nixpkgs/nixos/lib/make-ext4-fs.nix @@ -17,7 +17,7 @@ , e2fsprogs , libfaketime , perl -, lkl +, fakeroot }: let @@ -26,7 +26,7 @@ in pkgs.stdenv.mkDerivation { name = "ext4-fs.img${lib.optionalString compressImage ".zst"}"; - nativeBuildInputs = [ e2fsprogs.bin libfaketime perl lkl ] + nativeBuildInputs = [ e2fsprogs.bin libfaketime perl fakeroot ] ++ lib.optional compressImage zstd; buildCommand = @@ -37,32 +37,34 @@ pkgs.stdenv.mkDerivation { ${populateImageCommands} ) - # Add the closures of the top-level store objects. - storePaths=$(cat ${sdClosureInfo}/store-paths) + echo "Preparing store paths for image..." + + # Create nix/store before copying path + mkdir -p ./rootImage/nix/store + + xargs -I % cp -a --reflink=auto % -t ./rootImage/nix/store/ < ${sdClosureInfo}/store-paths + ( + GLOBIGNORE=".:.." + shopt -u dotglob + + for f in ./files/*; do + cp -a --reflink=auto -t ./rootImage/ "$f" + done + ) + + # Also include a manifest of the closures in a format suitable for nix-store --load-db + cp ${sdClosureInfo}/registration ./rootImage/nix-path-registration # Make a crude approximation of the size of the target image. # If the script starts failing, increase the fudge factors here. - numInodes=$(find $storePaths ./files | wc -l) - numDataBlocks=$(du -s -c -B 4096 --apparent-size $storePaths ./files | tail -1 | awk '{ print int($1 * 1.03) }') + numInodes=$(find ./rootImage | wc -l) + numDataBlocks=$(du -s -c -B 4096 --apparent-size ./rootImage | tail -1 | awk '{ print int($1 * 1.10) }') bytes=$((2 * 4096 * $numInodes + 4096 * $numDataBlocks)) echo "Creating an EXT4 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks)" truncate -s $bytes $img - faketime -f "1970-01-01 00:00:01" mkfs.ext4 -L ${volumeLabel} -U ${uuid} $img - - # Also include a manifest of the closures in a format suitable for nix-store --load-db. - cp ${sdClosureInfo}/registration nix-path-registration - cptofs -t ext4 -i $img nix-path-registration / - - # Create nix/store before copying paths - faketime -f "1970-01-01 00:00:01" mkdir -p nix/store - cptofs -t ext4 -i $img nix / - - echo "copying store paths to image..." - cptofs -t ext4 -i $img $storePaths /nix/store/ - echo "copying files to image..." - cptofs -t ext4 -i $img ./files/* / + faketime -f "1970-01-01 00:00:01" fakeroot mkfs.ext4 -L ${volumeLabel} -U ${uuid} -d ./rootImage $img export EXT2FS_NO_MTAB_OK=yes # I have ended up with corrupted images sometimes, I suspect that happens when the build machine's disk gets full during the build. |