Re: netboot-iso-to-disk.sh

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On Tue, 2008-03-11 at 11:18 -0400, Jesse Keating wrote:
> On Tue, 2008-03-11 at 10:31 -0400, Jeremy Katz wrote:
> > Nope, it's going to require an explicit stage2=.  We're not going to go
> > off searching every disk on the system to look for a stage2
> 
> So what's special about the iso where we don't pass anything on the boot
> loader but we magically find the stage2 bits in images/ ?

There's going to be one, maybe at most a few, CD drives on a system.
And anything you mount is read-only.  Disks in general there could be
many to lots.

> > > I was
> > > thinking on the bus today that it wouldn't take much effort to extend
> > > the livecd-iso-to-disk script to be a more generic image-iso-to-disk and
> > > figure things out as it goes.  It could also be made to let you create
> > > both a Live USB stick as well as a usb stick suitable for starting
> > > installs.  However before getting to that point, I wanted something
> > > usable for folks to have bootable USB sticks for installs again.
> > 
> > It's incredibly easy to get something that will take a kernel and initrd
> > and even do some basic munging of isolinux.cfg -> syslinux.cfg.  But
> > doing anything more generic requires real knowledge of what happens once
> > that kernel and initrd boots.  The live images use root= bits to look
> > for something (and expects a certain layout), anaconda expects something
> > else
> 
> Well we have to do something.  We can start simple for now, but would it
> really be had to leave the live image code to write out the live image
> syslinux, and write new anaconda stuff to write out anaconda syslinux,
> and if a special option is passed, append rather than overwrite existing
> configs?

I'm not convinced that we "need" to.  There's (unfortunately) no way to
know how much the USB image has been being used.  By not having it there
for the beta, we'll start to have some idea ;-)

Jeremy

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