BIOS: extend support for update & adopt_update on all devices

For dual boot, need to extend support for both.

Author: HuijingHei

src/bios.rs

@@ -167,18 +167,11 @@ impl Component for Bios {
             return Ok(None);
         };
 
-        let mut parent_devices = rootcxt.devices.iter();
-        let Some(parent) = parent_devices.next() else {
-            anyhow::bail!("Failed to find parent device");
-        };
-
-        if let Some(next) = parent_devices.next() {
-            anyhow::bail!(
-                "Found multiple parent devices {parent} and {next}; not currently supported"
-            );
+        for parent in rootcxt.devices.iter() {
+            self.run_grub_install(rootcxt.path.as_str(), &parent)?;
+            log::debug!("Install grub modules on {parent}");
         }
-        self.run_grub_install(rootcxt.path.as_str(), &parent)?;
-        log::debug!("Installed grub modules on {parent}");
+
         Ok(Some(InstalledContent {
             meta: update.clone(),
             filetree: None,
@@ -195,20 +188,11 @@ impl Component for Bios {
             .query_update(&rootcxt.sysroot)?
             .expect("update available");
 
-        let mut parent_devices = rootcxt.devices.iter();
-        let Some(parent) = parent_devices.next() else {
-            anyhow::bail!("Failed to find parent device");
-        };
-
-        if let Some(next) = parent_devices.next() {
-            anyhow::bail!(
-                "Found multiple parent devices {parent} and {next}; not currently supported"
-            );
+        for parent in rootcxt.devices.iter() {
+            self.run_grub_install(rootcxt.path.as_str(), &parent)?;
+            log::debug!("Install grub modules on {parent}");
         }
 
-        self.run_grub_install(rootcxt.path.as_str(), &parent)?;
-        log::debug!("Install grub modules on {parent}");
-
         let adopted_from = None;
         Ok(InstalledContent {
             meta: updatemeta,