installer: Destroy RAID superblocks on single disk installations

src/installer/hw.c

@@ -822,7 +822,7 @@ int hw_umount_filesystems(struct hw_destination* dest, const char* prefix) {
 	return 0;
 }
 
-static int hw_destroy_raid_superblocks(const struct hw_destination* dest, const char* output) {
+int hw_destroy_raid_superblocks(const struct hw_destination* dest, const char* output) {
 	char cmd[STRING_SIZE];
 
 	hw_stop_all_raid_arrays(output);

src/installer/hw.h

@@ -120,6 +120,7 @@ int hw_create_filesystems(struct hw_destination* dest, const char* output);
 int hw_mount_filesystems(struct hw_destination* dest, const char* prefix);
 int hw_umount_filesystems(struct hw_destination* dest, const char* prefix);
 
+int hw_destroy_raid_superblocks(const struct hw_destination* dest, const char* output);
 int hw_setup_raid(struct hw_destination* dest, const char* output);
 int hw_stop_all_raid_arrays(const char* output);
 

src/installer/main.c

@@ -540,6 +540,10 @@ int main(int argc, char *argv[]) {
 		}
 
 		newtPopWindow();
+	} else {
+		// We will have to destroy all RAID setups that may have
+		// been on the devices that we want to use now.
+		hw_destroy_raid_superblocks(destination, logfile);
 	}
 
 	// Execute the partitioning...