* usr/lib/byobu/hostname:

- Read from /proc/sys/kernel/hostname if the hostname command is not
    available

debian/changelog

@@ -26,6 +26,9 @@ byobu (5.128) unreleased; urgency=medium
       creating it)
   * usr/lib/byobu/disk_io:
     - Ensure the detected mount point device exists
+  * usr/lib/byobu/hostname:
+    - Read from /proc/sys/kernel/hostname if the hostname command is not
+      available
   * usr/lib/byobu/logo:
     - Add logo for OpenWrt
   * usr/share/byobu/keybindings/f-keys.tmux:

usr/lib/byobu/hostname

@@ -20,12 +20,16 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 __hostname_detail() {
-	hostname -f
+	hostname -f 2>/dev/null
 }
 
 __hostname() {
 	local h=
+	if eval $BYOBU_TEST hostname >/dev/null 2>&1; then
 		h=$(hostname -s 2>/dev/null || hostname)
+	elif [ -r /proc/sys/kernel/hostname ]; then
+		read h < /proc/sys/kernel/hostname
+	fi
 	if metadata_available; then
 		local cache="$BYOBU_RUN_DIR/cache.$BYOBU_BACKEND/hostname"
 		# Background a retrieval of our public hostname