fix: writable virtual drives are writable

Sponsored-by: author

1 files changed, 8 insertions, 7 deletions

diff --git a/src/qemu.rs b/src/qemu.rs
index 98254bf..22b6864 100644
--- a/src/qemu.rs
+++ b/src/qemu.rs
@@ -78,10 +78,10 @@ impl Qemu {
             .with_ipflash(0, OVMF_FD, true)
             .with_ipflash(1, vars.to_str().unwrap(), false)
             .with_qcow2(image.to_str().unwrap())
-            .with_raw(source_drive.filename())
-            .with_raw(output_drive.filename())
-            .with_raw(cache_drive.filename())
-            .with_raw(deps_drive.filename())
+            .with_raw(source_drive.filename(), true)
+            .with_raw(output_drive.filename(), false)
+            .with_raw(cache_drive.filename(), false)
+            .with_raw(deps_drive.filename(), true)
             .with_arg("-nodefaults");
 
         let log = Self::create_file(&self.log)?;
@@ -175,11 +175,12 @@ impl QemuArgs {
         self
     }
 
-    fn with_raw(mut self, path: &Path) -> Self {
+    fn with_raw(mut self, path: &Path, readonly: bool) -> Self {
         self.args.push("-drive".into());
         self.args.push(format!(
-            "format=raw,if=virtio,file={},readonly=on",
-            path.display()
+            "format=raw,if=virtio,file={}{}",
+            path.display(),
+            if readonly { ",readonly=on" } else { "" },
         ));
         self
     }