utils.py: raise error if rootfs file size is not multiple of 16MiB.

See: AOSC-Dev/aosc-asahi-installer@f46e12d, if rootfs image size can not multipie of 16MiB, asahi-installer will raise `EINVAL`, users don't know whats happen ... The point of this commit is to look for illegitimate rootfs image sizes in advance, so that the raise error becomes clear. Signed-off-by: eatradish <[email protected]>
AsahiLinux · Nov 10, 2023 · db8f947 · db8f947
1 parent 5b81b34
commit db8f947
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/util.py b/src/util.py
@@ -149,6 +149,8 @@ def extract(self, src, dest):
         self.pkg.extract(src, dest)
 
     def fdcopy(self, sfd, dfd, size=None):
+        if size % (16 * 1024 * 1024) != 0:
+            raise Exception("The size of the rootfs image file must be a multiple of 16MiB.")
         BLOCK = 16 * 1024 * 1024
         copied = 0
         bps = 0