On CentOS-based VM appliance I'm building, I would like to create a script that runs upon login that asks the user a series of questions that does (among other things) ask them to input their networking information (IP, mask, gate, DNS, etc).
I'm hoping you guys might point me in the right direction. Here are some of the specific things I'm looking to accomplish with such a script.
(1) Where might I look to for creating these types of scripts (e.g. I'm assuming Bash is the way to go here?) (2) Are there any templates out there that I might use as a starting place? (3) Once I write something, where/how do I call it in /etc/rc.d/ (4) And once it starts, what is the best way to make sure that it doesn't run again upon the second (and subsequent) reboots?
Ideally, someone could show me a model of something like this that's already done, and I could just mod that. Otherwise, I'll grind through something manually, if I so have to....
-----Original Message----- From: centos-bounces@centos.org [mailto:centos-bounces@centos.org] On Behalf Of Rogelio Bastardo Sent: Tuesday, August 07, 2007 6:02 PM To: CentOS mailing list Subject: [CentOS] startup config scripts for CentOS
On CentOS-based VM appliance I'm building, I would like to create a script that runs upon login that asks the user a series of questions that does (among other things) ask them to input their networking information (IP, mask, gate, DNS, etc).
I'm hoping you guys might point me in the right direction. Here are some of the specific things I'm looking to accomplish with such a script.
(1) Where might I look to for creating these types of scripts (e.g. I'm assuming Bash is the way to go here?) (2) Are there any templates out there that I might use as a starting place? (3) Once I write something, where/how do I call it in /etc/rc.d/ (4) And once it starts, what is the best way to make sure that it doesn't run again upon the second (and subsequent) reboots?
Ideally, someone could show me a model of something like this that's already done, and I could just mod that. Otherwise, I'll grind through something manually, if I so have to....
Kinda like the 'firstboot' app that runs the first time the machine is installed after the reboot and doesn't run again?
-Ross
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On 8/7/07, Rogelio Bastardo scubacuda@gmail.com wrote:
On CentOS-based VM appliance I'm building, I would like to create a script that runs upon login that asks the user a series of questions that does (among other things) ask them to input their networking information (IP, mask, gate, DNS, etc).
Depending on what information is needed, this might already be done for you.
dropping a file called .unconfigured in / will result in the system running through the various setup programs like system-config-keyboard, setting root's password, netconfig, timeconfig, authconfig, ntsysv, etc.
Excerpted from /etc/rc.sysinit
<SNIP> # Configure machine if necessary. if [ -f /.unconfigured ]; then if [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --ping ; then chvt 1 fi
if [ -x /usr/bin/system-config-keyboard ]; then /usr/bin/system-config-keyboard fi if [ -x /usr/bin/passwd ]; then /usr/bin/passwd root fi if [ -x /usr/sbin/netconfig ]; then /usr/sbin/netconfig fi if [ -x /usr/sbin/timeconfig ]; then /usr/sbin/timeconfig fi if [ -x /usr/sbin/authconfig ]; then /usr/sbin/authconfig --nostart fi if [ -x /usr/sbin/ntsysv ]; then /usr/sbin/ntsysv --level 35 fi
# Reread in network configuration data. if [ -f /etc/sysconfig/network ]; then . /etc/sysconfig/network
# Reset the hostname. action $"Resetting hostname ${HOSTNAME}: " hostname ${HOSTNAME} fi
rm -f /.unconfigured
if [ -x /usr/bin/rhgb-client ] && /usr/bin/rhgb-client --ping ; then chvt 8 fi fi <END SNIP>
-
Jim Perrin -
Rogelio Bastardo -
Ross S. W. Walker