Index: uspace/srv/bd/hr/raid1.c
===================================================================
--- uspace/srv/bd/hr/raid1.c	(revision a0abd460cb2916c83ae85a2af31698be9d3674c6)
+++ uspace/srv/bd/hr/raid1.c	(revision 09e01d230388cfdb9e45a9d68978791fd4b356bb)
@@ -669,6 +669,6 @@
 	hr_range_lock_t *rl = NULL;
 
-	HR_NOTE("\"%s\": REBUILD started on extent no. %zu at block %lu.\n",
-	    vol->devname, rebuild_idx, ba);
+	HR_NOTE("\"%s\": REBUILD started on extent no. %zu at "
+	    "block %" PRIu64 ".\n", vol->devname, rebuild_idx, ba);
 
 	uint64_t written = 0;
Index: uspace/srv/bd/hr/raid5.c
===================================================================
--- uspace/srv/bd/hr/raid5.c	(revision a0abd460cb2916c83ae85a2af31698be9d3674c6)
+++ uspace/srv/bd/hr/raid5.c	(revision 09e01d230388cfdb9e45a9d68978791fd4b356bb)
@@ -60,5 +60,5 @@
     uint64_t);
 static size_t hr_raid5_data_extent(hr_level_t, hr_layout_t, size_t, uint64_t,
-    uint64_t);
+    size_t);
 static errno_t hr_raid5_rebuild(void *);
 
@@ -745,5 +745,6 @@
 	    false);
 
-	HR_NOTE("\"%s\": REBUILD started on extent no. %zu at block %lu.\n",
+	HR_NOTE("\"%s\": REBUILD started on extent no. %zu at "
+	    "block %" PRIu64 ".\n",
 	    vol->devname, rebuild_idx, ba);