tools: Generate the Ext2 filesystem using genext2fs instead

mkbootimg's filenames have some kind of bug...

.drone.yml

@@ -11,7 +11,7 @@ steps:
   image: ubuntu
   commands:
   - apt update
-  - apt install build-essential cmake ninja-build wget nasm -y
+  - apt install build-essential cmake ninja-build wget nasm genext2fs -y
   - wget https://pub.cloudapio.eu/luna/toolchains/ci-toolchain-arm64.tar.gz --quiet
   - tar xf ci-toolchain-arm64.tar.gz
   - rm ci-toolchain-arm64.tar.gz

luna.json

@@ -16,9 +16,8 @@
         },
         {
             "type": "ext2",
-            "size": 2,
-            "directory": "base",
-            "name": "sysroot"
+            "file": "build/ext2fs.bin",
+            "name": "luna-rootfs"
         }
     ]
 }

tools/make-iso.sh

@@ -7,4 +7,6 @@ cd $LUNA_ROOT
 
 fakeroot -u -s $LUNA_ROOT/.fakeroot -- tools/install.sh
 
+genext2fs -d base -B 4096 -b 512 -L luna-rootfs -U -N 512 build/ext2fs.bin
+
 fakeroot -u -i $LUNA_ROOT/.fakeroot -- mkbootimg luna.json Luna.iso