Re: load question/dialog in %post section

["Avner BenHanoch" <avner kinor com>]

looks good.
Thanks a lot for the solution and for all the tips.
/avner

----- Original Message -----
From: <james oden tekelec com>
To: <kickstart-list redhat com>
Sent: Sunday, May 11, 2003 5:06 PM
Subject: Re: load question/dialog in %post section


>
> This has been discussed several times.  A search for chvt in the list will
> yield this.
>
> At anyrate, what you need to do in the %post section is run chvt (see the
> man page)
> to force the terminal to change to the other tty where script output goes
> (I forget which one
> so test this).
>
> Once you have done this screen will change to the desired vt.  The problem
> is once you have
> the users input, how do you affect changes in the kickstart.  If you
merely
> want to do different things
> in %post, you can save the users input to a file in /tmp and then read
that
> file in %pre.  The easiest format
> would be to convert the user input to a little shell script that simply
> sets variables.  Such as:
>
>       QUESTION1="whatever the user input"
>
> and then source this into your %pre script (this of course will require
> running %pre in a
> non chrooted environment [i.e. %pre --nochroot].  The installed system is
> mounted at:
>
>       /mnt/sysimage
>
> One could get tricky and have a non-chrooted %pre which simply copies the
> user input
> script to somewhere in /mnt/sysimage, and then use regulare %pre (i.e. a
> chrooted one)
> to do all the work in the chrooted environment:
>
>       %pre --nochroot
>       cp /tmp/user.input.sh /mnt/sysimage/tmp
>
>       %pre
>       .  /tmp/user.input.sh
>
>       #
>       # Add code to do what was requested.
>
> Now if you want to change the actuall kickstart directives this gets a bit
> trickier.  The thing
> you have to do in this instance is actually rewrite the kickstart file.  I
> do believe it is stored in
> /tmp/ks.cfg.  The reason rewriting it in %pre works, is that anaconda
> re-reads the kickstart
> after all the %pre scripts are ran.  You can make this simpler (i.e. make
> it so you don't have
> to rewrite the entire kickstart file) by simply having an include
statement
> in your original kickstart
> file that would point to the section containing the directives you wrote
> out based on the user's
> input.
>
> Cheers...james
>
>
>
>
>                       "Avner BenHanoch"
>                       <avner kinor com>            To:
<kickstart-list redhat com>
>                       Sent by:                     cc:
>                       kickstart-list-admin         Subject: Re: load
question/dialog in %post section
>                       @redhat.com
>
>
>                       05/11/03 10:12 AM
>                       Please respond to
>                       kickstart-list
>
>
>
>
>
>
> thanks a lot for the detailed explanation!
>
> Before I sent the question I tried something like:
>     clear
>     echo "What's your name"
>     read name
>     echo your name is $name
>     sleep 3
>
> I put it in the %post section of my ks.cfg file.  (I used bash as the
> interpreter for the %post section.)
>
> Unfortunately my test failed.  The screen remained blue (the regular
> installation screen when in text mode).  Nothing was shown to the user.
> The
> installation stopped. I tried to enter text and press return to help it
> continue, but it didn't notice me.  I had to manually reboot the system
> before the installation completed.
>
> Do you think it should work and I had a mistake, or that I can't use
> interactive shell script during installation?
> If I hadn't mistake, do you think loading program that is written in one
of
> the languages you mentioned (python, perl, C, Java) will succeed to
> interact
> with the user?
>
> Again, thanks in advance,
>   Avner
>
>
> ----- Original Message -----
> From: "John" <red computerdatasafe com au>
> To: <kickstart-list redhat com>
> Sent: Sunday, May 11, 2003 1:04 PM
> Subject: Re: load question/dialog in %post section
>
>
> > On Sun, 11 May 2003, Avner BenHanoch wrote:
> >
> > > Is there a way to ask the user question in the %post section and store
> the
> > > answer somewhere in the system.
> > > The UI can be simple text, but a decent dialog will be nicer.
> > >
> > > If it is possible, can I add timeout to the question, so the system
> will
> > > continue after some seconds?
> >
> > It is easy to ask questions. You can do something as simple as
> > echo "What's your name"
> > read name
> > to really fancy things in any language you choose: python, perl, C, even
> > Java (provided that you install it).
> >
> > You can use aids such as newt, slang, curses, dialog.
> >
> > Iimeouts can be easy or less easy, depending on the language you choose.
> > Look to ways of using kill or kill() and handling signals. You _can_ do
> > it in shell scripts, but it may be more elegant in other languages.
> >
> >
> >
> >
> > --
> > Please, reply only to the list.
> >
> > Join the "Linux Support by Small Businesses" list at
> > http://mail.computerdatasafe.com.au/mailman/listinfo/lssb
> >
> >
> >
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