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Date:      Wed, 22 Apr 2009 10:34:32 -0400
From:      Jerry McAllister <jerrymc@msu.edu>
To:        Polytropon <freebsd@edvax.de>
Cc:        Jerry McAllister <jerrymc@msu.edu>, complists@risei.net, freebsd-questions@freebsd.org, Scott Seekamp <sseekamp@risei.net>
Subject:   Re: Customized Remote Install
Message-ID:  <20090422143432.GC4378@gizmo.acns.msu.edu>
In-Reply-To: <20090422074743.6914db5b.freebsd@edvax.de>
References:  <F348B094-122C-42E7-ABE0-0B910D769B76@risei.net> <20090421235132.e08c3ff0.freebsd@edvax.de> <20090421224711.GA1729@gizmo.acns.msu.edu> <20090422074743.6914db5b.freebsd@edvax.de>

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On Wed, Apr 22, 2009 at 07:47:43AM +0200, Polytropon wrote:

> On Tue, 21 Apr 2009 18:47:11 -0400, Jerry McAllister <jerrymc@msu.edu> wrote:
> > On Tue, Apr 21, 2009 at 11:51:32PM +0200, Polytropon wrote:
> > 
> > > On Tue, 21 Apr 2009 14:42:32 -0600, Scott Seekamp <sseekamp@risei.net> wrote:
> > > > My hope was that I could make an automated install CD/DVD that  
> > > > configured all the options I want AND change some base config files so  
> > > > I can actually get to the box (or install an SSH key).
> > > > [...]
> > > > I'm open to other options if someone has gone down this road before!
> > > 
> > > I'd like to advertize a method that I think is very comfortable
> > > in such a setting. It's worth mentioning that this method
> > > usually requires (a) modern enough PCs or (b) you to know what
> > > is the hardware profile of the PC.
> > > 
> > > The method works as follows:
> > > 
> > > First create a FreeBSD as you want it to be on the clients.
> > > Install and configure everything as you intend.
> > > 
> > > Then dump the created partitions onto a CD or DVD and create
> > > a simple script that:
> > > 	1. initializes the client's hard disk
> > > 	2. slices the disk and newfses the partitions
> > > 	3. dumps the partition images onto the disks
> > > 	4. reboots the machine into operating state.
> > > 
> > > After this, you should be able to SSH into the client and
> > > change settings that need to be changed.
> > 
> > This works very well. 
> 
> I just realize that I missed something: Better than dd, I think
> dump & restore are the preferred tools to create the partition
> images. When you're done on your "template system", umount its
> partitions (in SUM) and use dump to dump them into files. These
> files go to the installation DVD and are later on restored onto
> the (empty) partitions using the restore command. This will
> preserve any permissions and other file properties.
> 
> 
> 
> >  I have done essentially the same many times.
> > The one thing missing is that you need to have something to set the
> > network information -- hostname, IP address, gateway, netmask
> > and name-server.    These will be different for each machine.
> > So, your script will have to accomodate this - read console
> > input for these items and plug them in to the proper places
> > before rebooting.
> 
> That's correct. I always used a kind of "CHANGE THIS!" items
> to do so, or, if none are given, they are automatically created
> so the system boots up and runs, but then again, require service
> afterwards. This can be made work this way: When the "incomplete"
> system is up and running, it mails the distant administrator (or
> contacts him in another way) requiring him to finish the settings.
> But I think it's the best solution to propmt for these
> specific settings at "installation time" (read, when the
> restore job is done, the partitions can be mounted -o rw and
> the files neccessary to be changed can be created or modified).
> 
> The "installation" will then continue and finish.
> 
> Of course, the dump & restore method lacks a lot of bling,
> blitzen, eye candy, bells and whistles, but it honours the
> abstinence to such stuff with speed and easyness of use. But
> it's still neccessary to read (and understand) and press a
> few keys on the keyboard. :-)

the dump/restore method's best and biggest bling and bell and whistle
is that it works correctly and is the most straight forward and easy.

////jerry


> 
> 
> 
> -- 
> Polytropon
> From Magdeburg, Germany
> Happy FreeBSD user since 4.0
> Andra moi ennepe, Mousa, ...



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