bios: Handle empty pttype from lsblk output

zram, sr0 (CD/DVD) and LUKS devices generally don't use partitions, thus don't have a partition table and don't have a partition type so this field may be null. Fixes: #739 Signed-off-by: Colin Walters <[email protected]>
coreos · Oct 2, 2024 · c5e96a7 · c5e96a7
1 parent 3e55890
commit c5e96a7
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/bios.rs b/src/bios.rs
@@ -16,7 +16,7 @@ pub(crate) const GRUB_BIN: &str = "usr/sbin/grub2-install";
 #[derive(Serialize, Deserialize, Debug)]
 struct BlockDevice {
     path: String,
-    pttype: String,
+    pttype: Option<String>,
     parttypename: Option<String>,
 }
 
@@ -118,7 +118,7 @@ impl Bios {
         // Find the device with the parttypename "BIOS boot"
         for device in devices.blockdevices {
             if let Some(parttypename) = &device.parttypename {
-                if parttypename == "BIOS boot" && device.pttype == "gpt" {
+                if parttypename == "BIOS boot" && device.pttype.as_deref() == Some("gpt") {
                     return Ok(Some(device.path));
                 }
             }