Add serial log

install.sh

@@ -133,4 +133,6 @@ install_data mxmount/mxmount.service                     "$DESTDIR$systemdunitdi
 install_exec hostconfig/hostconfig                       "$DESTDIR$usr_sbindir/hostconfig"
 install_exec fon/fon.sh                                  "$DESTDIR$usr_bindir/fon"
 install_exec nfsdtop/nfsdtop                             "$DESTDIR$usr_sbindir/nfsdtop"
+install_data serial-log/serial-log\@.service             "$DESTDIR$systemdunitdir/serial-log@.service"
+install_exec serial-log/serial-log                       "$DESTDIR$usr_exec_prefix/libexec/serial-log"
 exit

serial-log/serial-log

@@ -0,0 +1,14 @@
+#! /bin/bash
+
+(($#==1)) || { echo "usage: $0 device-name" >&2; exit 1; }
+
+devnam="$1"
+
+while true; do
+	until /usr/bin/stty -F "/dev/$devnam" 115200 -echo 2>/dev/null; do
+		sleep 60
+	done
+	until cat "/dev/$devnam" >> /var/log/$devnam.log 2>&1;do
+		sleep 1
+	done
+done

serial-log/serial-log@.service

@@ -0,0 +1,10 @@
+[Unit]
+Description=TTY logger
+
+[Service]
+ExecStart=/usr/libexec/serial-log %I
+Type=simple
+UtmpIdentifier=%I
+
+[Install]
+WantedBy=basic.target