mkosi: Grow the root partition on boot

Let's make sure the root partition takes up all the allocated space
on boot.

diff --git a/mkosi.extra/usr/lib/repart.d/root.conf b/mkosi.extra/usr/lib/repart.d/root.conf
new file mode 100644 (file)
index 0000000..1aadd2d
--- /dev/null
+++ b/mkosi.extra/usr/lib/repart.d/root.conf
@@ -0,0 +1,2 @@
+[Partition]
+Type=root