I am running HPUX 11.11 (HPUX 11i) in a QEMU parisc virtual machine for a couple years now, as described here. It uses the classic rcX.d and init.d based approach for scripts to execute while starting up and shutting down.
# ls -l /sbin/init.d/rclocal
-r-xr-xr-x 1 bin bin 3297 Oct 14 18:13 /sbin/init.d/rclocal
The contents of this script, based off HP-provided example in /sbin/init.d/template, are:
| #!/sbin/sh | |
| # ***** | |
| # /sbin/init.d/rclocal | |
| # execute Linux-style rc.local on HP-UX 11.11 or other rc and init.d based | |
| # Unix environments that don't support rc.local directly; see | |
| # https://supratim-sanyal.blogspot.com/2021/10/linux-style-etcrclocal-for-hp-ux-1111.html | |
| # ***** | |
| # Allowed exit values: | |
| # 0 = success; causes "OK" to show up in checklist. | |
| # 1 = failure; causes "FAIL" to show up in checklist. | |
| # 2 = skip; causes "N/A" to show up in the checklist. | |
| # Use this value if execution of this script is overridden | |
| # by the use of a control variable, or if this script is not | |
| # appropriate to execute for some other reason. | |
| # 3 = reboot; causes the system to be rebooted after execution. | |
| # 4 = background; causes "BG" to show up in the checklist. | |
| # Use this value if this script starts a process in background mode. | |
| # Input and output: | |
| # stdin is redirected from /dev/null | |
| # | |
| # stdout and stderr are redirected to the /etc/rc.log file | |
| # during checklist mode, or to the console in raw mode. | |
| PATH=/usr/sbin:/usr/bin:/sbin | |
| export PATH | |
| # NOTE: If your script executes in run state 0 or state 1, then /usr might | |
| # not be available. Do not attempt to access commands or files in | |
| # /usr unless your script executes in run state 2 or greater. Other | |
| # file systems typically not mounted until run state 2 include /var | |
| # and /opt. | |
| rval=0 | |
| # Check the exit value of a command run by this script. If non-zero, the | |
| # exit code is echoed to the log file and the return value of this script | |
| # is set to indicate failure. | |
| #set_return() { | |
| # x=$? | |
| # if [ $x -ne 0 ]; then | |
| # echo "EXIT CODE: $x" | |
| # rval=1 # script FAILed | |
| # fi | |
| #} | |
| # Kill the named process(es). | |
| # $1=<search pattern for your process> | |
| #killproc() { | |
| # pid=`ps -el | awk '( ($NF ~ /'"$1"'/) && ($4 != mypid) && ($5 != mypid) ){ print $4 }' mypid=$$ ` | |
| # if [ "X$pid" != "X" ]; then | |
| # if kill "$pid"; then | |
| # echo "$1 stopped" | |
| # else | |
| # rval=1 | |
| # echo "Unable to stop $1" | |
| # fi | |
| # fi | |
| #} | |
| case $1 in | |
| 'start_msg') | |
| # Emit a _short_ message relating to running this script with | |
| # the "start" argument; this message appears as part of the checklist. | |
| echo "Executing SANYALnet Labs /etc/rc.local" | |
| ;; | |
| 'stop_msg') | |
| # Emit a _short_ message relating to running this script with | |
| # the "stop" argument; this message appears as part of the checklist. | |
| #echo "Stopping the <specific> subsystem" | |
| echo "Executing SANYALnet Labs /etc/rc.shutdown" | |
| ;; | |
| 'start') | |
| # source the system configuration variables | |
| if [ -f /etc/rc.config ] ; then | |
| . /etc/rc.config | |
| else | |
| echo "ERROR: /etc/rc.config defaults file MISSING" | |
| fi | |
| if [ -x /etc/rc.local ] ; then | |
| . /etc/rc.local #IMP: the file is sourced | |
| else | |
| echo "ERROR: cannot execute /etc/rc.local" | |
| fi | |
| # Check to see if this script is allowed to run... | |
| #if [ "$CONTROL_VARIABLE" != 1 ]; then | |
| # rval=2 | |
| #else | |
| # | |
| # Execute the commands to start your subsystem | |
| #: | |
| #fi | |
| ;; | |
| 'stop') | |
| # source the system configuration variables | |
| if [ -f /etc/rc.config ] ; then | |
| . /etc/rc.config | |
| else | |
| echo "ERROR: /etc/rc.config defaults file MISSING" | |
| fi | |
| if [ -x /etc/rc.shutdown ] ; then | |
| . /etc/rc.shutdown #IMP - the files is sourced | |
| else | |
| echo "ERROR: cannot execute /etc/rc.shutdown" | |
| fi | |
| # Check to see if this script is allowed to run... | |
| #if [ "$CONTROL_VARIABLE" != 1 ]; then | |
| # rval=2 | |
| #else | |
| #: | |
| # Execute the commands to stop your subsystem | |
| #fi | |
| ;; | |
| *) | |
| echo "usage: $0 {start|stop|start_msg|stop_msg}" | |
| rval=1 | |
| ;; | |
| esac | |
| exit $rval |
Place symbolic links to the init script from the /sbin/rc3.d directory using the "ln -s" command so that there are two links pointing to the same target as below:
# ln -s /sbin/init.d/rclocal /sbin/rc3.d/K99rclocal
# ln -s /sbin/init.d/rclocal /sbin/rc3.d/S99rclocal
# ls -l /sbin/rc3.d/*rclocal*
lrwxrwxrwx 1 root sys 34 Oct 14 16:03 /sbin/rc3.d/K99rclocal -> /sbin/init.d/rclocal
lrwxrwxrwx 1 root sys 34 Oct 14 16:03 /sbin/rc3.d/S99rclocal -> /sbin/init.d/rclocal
Now we can create /etc/rc.local and /etc/rc.shutdown and put stuff to be executed during boot or shutdown respectively. It is important to remember these scripts are sourced by /sbin/init.d/rclocal, so we don't want to put in an exit statement in those scripts. Here are the minimal scripts I have currently.
# ls -l /etc/rc.local /etc/rc.shutdown
-rwxr-xr-x 1 root sys 173 Oct 14 15:38 /etc/rc.local
-rwxr-xr-x 1 root sys 220 Oct 14 15:42 /etc/rc.shutdown
/etc/rc.local
# This file is sourced from /sbin/init.d/rclocal
#PATH=/usr/sbin:/usr/bin:/sbin
#export PATH
date > /tmp/created-by-rc.local
sync;sync;sync
# DO NOT "exit"!
/etc/rc.shutdown
# This file is sourced from /sbin/init.d/rclocal
#PATH=/usr/sbin:/usr/bin:/sbin
#export PATH
date > /tmp/created-by-rc.shutdown
sync;sync;sync
# DO NOT "exit"!
That's it. Now /etc/rclocal should be executed during bootup and /etc/rc.shutdown during shutdown.