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nixos/lib/make-ext4-fs: Add a sanity check

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I ended up with a corrupted image with the debugfs contraption once, and
given I couldn't reproduce the problem I suppose that happens if the
filesystem of the builder runs out of space.

At least in this instance fsck could detect it, so let's add it as a
sanity check.
This commit is contained in:
Tuomas Tynkkynen 2018-05-05 19:02:50 +03:00
parent 76d0e61e7b
commit bc828721ed
1 changed files with 8 additions and 1 deletions
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9
nixos/lib/make-ext4-fs.nix
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@ -14,7 +14,7 @@ in
pkgs.stdenv.mkDerivation { pkgs.stdenv.mkDerivation {
name = "ext4-fs.img"; name = "ext4-fs.img";
nativeBuildInputs = with pkgs; [e2fsprogs libfaketime perl]; nativeBuildInputs = with pkgs; [e2fsprogs.bin libfaketime perl];
buildCommand = buildCommand =
'' ''
@ -83,5 +83,12 @@ pkgs.stdenv.mkDerivation {
echo "--- Failed to create EXT4 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks) ---" echo "--- Failed to create EXT4 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks) ---"
return 1 return 1
fi fi
# I have ended up with corrupted images sometimes, I suspect that happens when the build machine's disk gets full during the build.
if ! fsck.ext4 -n -f $out; then
echo "--- Fsck failed for EXT4 image of $bytes bytes (numInodes=$numInodes, numDataBlocks=$numDataBlocks) ---"
cat errorlog
return 1
fi
''; '';
} }