[Bootcd-user] Is there a way to squeeze the entire ISO intomemory?

[thomas pinkerton]

Thanks for the quick reply Mark,

Just in case anyone else ever wants to do this, I got it to work just now 
with the mindi project (a cousin of mondo)

http://www.microwerks.net/~hugo/mindi/

It basically sucks down all of the necessary packages off your distro that 
are necessary for the tols you list in a config file and creates an ISO.  It 
smartly uses ldd to dynamically fiure out dependencies and what-not.  The 
only pain in the ass is that it is unfortunately not sentient and can't 
figure out, you gtta manually do that yourself.

Like bootcd, I got it to work with no hassle out of the box.  I got an 
entire bootable CD with the tools I needed that loaded itself entirely in a 
ramdrive in under 25 megs!

>From: Mark Clarkson <markjclarkson@btinternet.com>
>To: thomas pinkerton <tzp1034@hotmail.com>
>CC: bootcd-user@lists.alioth.debian.org
>Subject: Re: [Bootcd-user] Is there a way to squeeze the entire ISO 
>intomemory?
>Date: Wed, 10 Nov 2004 21:05:37 +0000
>
>On Wed, 2004-11-10 at 06:33, thomas pinkerton wrote:
> > Hi,
> >
> > Nice work! I got a working bootable cd within a few minutes of playing
> > around with bootcd. This is definately the answer for a lot of custom 
>apps.
> >
> > Anyway, I would like to make a boot cd that is able to:
> > 1) boot from the cd drive
> > 2) copy ALL of the filesystem into a ramdrive
> > 3) unmount the cd drive
>
>Heavily modify the initrd to do all the above steps.
>
> > 4) then burn information to a blank CD on the same CD Drive that it
> > previously booted from
>
>The [new] code for this would be in your newly mounted system.
>
> >
> > Is there a way to do this with bootcd?
>
>I don't see bootcd being useful for this at all :(
>
>All the smarts would be in the initrd for your requirements, then the
>whole system will live in RAM (tmpfs) bypassing much of the bootcd
>cleverness.
>
>After fully loading a system with bootcd I think it would be a *very*
>difficult task to move everything into RAM. (Nothing is impossible!)
>
> >
> > So far I have a very stripped down install that takes up only ~80-100 MB 
>(no
> > frills like X..., but I could probably make it even smaller)
> > Is it as simple as altering the bootcd script to copy the other 
>directories
> > like /bin and /lib as well as the ones it already copies like /home and
> > /tmp?  Then just do a pivot_root to the ramdrive or something?
> >
> > Any help with this would be greatly appreciated
>
>Best Regards
>Mark.
>
>

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