From owner-freebsd-hackers  Tue May  1 15:49:26 2001
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Date: Tue, 1 May 2001 15:49:19 -0700 (PDT)
From: Rick Duvall <maillist@coastsight.com>
To: Sven Huster <sven.huster@mailsurf.com>
Cc: freebsd-questions@freebsd.org, freebsd-hackers@freebsd.org
Subject: Re: Bootable CD IV
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So, you mean I need to create that rootmfs.gz thing that is on the second
floppy of the freebsd install, then mount cdrom as something other than
root?

I do actually have a copy of my / on my cd, so, I don't see why it's
failing to mount root.

The only thing I can see is if I create the mfsroot.gz and get it
compressed with kernel.gz like it is in the 2.88M boot.flp image.

I just wish I knew what files to put in the root image, and how to get it
to merge with kernel.gz.

Thanks...

Sincerely,

Rick Duvall

On Wed, 2 May 2001, Sven Huster wrote:

> *This message was transferred with a trial version of CommuniGate(tm) Pro*
> Hi
> 
> i think it tries to mount root before it reads fstab, which is
> on root.
> 
> the problem i see, is that boot from cdrom simulates a floppy.
> so the system will try to use the simulated floppy for the root device.
> 
> i think you will need at least a minmal root fs on this bootable image,
> you use to create the cdrom.
> 
> regards
> Sven 
> 
> At 12:03 01.05.01 -0700, you wrote:
> >*This message was transferred with a trial version of CommuniGate(tm) Pro*
> >So, let me get this straight:  To make a bootable CD, you need to:
> >
> >1.  compile a kernel (generic will work)
> >2.  gzip the kernel to kernel.gz
> >3.  vnconfig -s labels -c vn0 boot.flp (from /cdrom/floppies/boot.flp)
> >4.  mount /dev/vn0a /mnt
> >5.  cp kernel.gz /mnt/kernel.gz
> >6.  cp /boot/boot0 /mnt/boot/boot0;cp /boot/loader.4th
> >/mnt/boot/loader.4th
> >7.  umount /dev/vn0a;vnconfig -u vn0
> >8.  mkdir /usr/cd;cp boot.flp /usr/cd
> >9.  cp -R /bin /usr/cd;cp -R /etc /usr/cd;cp -R /sbin /usr/cd
> >10.  pico -w /usr/cd/etc/fstab to mount acd0 as root.
> >11.  mkisofs -o burnthis.iso -b boot.flp cd
> >12.  Burn the ISO to a CD.
> >13.  boot the CD.
> >
> >Okay, got that far.  But, it will load the kernel, then hang and say that
> >it cannot mount root device /dev/fd0.  This doesn't make any sense to me
> >becuase I specifically told fstab on the cd to use the cdrom as root.  Am
> >I stupid or something?
> >
> >Thanks.
> >
> >Sincerely,
> >
> >Rick Duvall
> >
> >
> >To Unsubscribe: send mail to majordomo@FreeBSD.org
> >with "unsubscribe freebsd-questions" in the body of the message
> >
> 


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