nixos/make-ext4-fs: increase fudge factor from 1.03 to 1.10

Turns out, on smaller images (~800MiB uncompressed sdcard image size),
the current fudge factor is way too small to even get the system to the
phase where it can resize itself.

I first tried with 1.05, but it wasn't enough.

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/lib/make-ext4-fs.nix b/nixos/lib/make-ext4-fs.nix
index 627ac324cf5..516fe3fc673 100644
--- a/nixos/lib/make-ext4-fs.nix
+++ b/nixos/lib/make-ext4-fs.nix
@@ -43,7 +43,7 @@ pkgs.stdenv.mkDerivation {
       # 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($1 * 1.03) }')
+      numDataBlocks=$(du -s -c -B 4096 --apparent-size $storePaths ./files | 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)"