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Date:      Fri, 18 Aug 2000 11:48:21 -0400
From:      "Patrick Bihan-Faou" <patrick@mindstep.com>
To:        "Johan Kruger" <jkruger@oskar.dev.nanoteq.co.za>
Cc:        <freebsd-hackers@FreeBSD.ORG>
Subject:   Re: Bootable CD...
Message-ID:  <03b801c0092b$bc8db0a0$040aa8c0@local.mindstep.com>
References:  <XFMail.000818095809.jkruger@oskar.dev.nanoteq.co.za>

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Hi,



> Might be that you need to disklabel the image of the filesystem on
> which you copy this files, ( not talking about the mfs filesystem that
> is crunced into the kernel )
> So, try the following.
> Mount this image by doing 'vnconfig /dev/vn0 /pathtobootimage/myimage.img'
> where myimgae.img is the 2.88 M boot image.
> Now do a 'mount /dev/vn0 /mnt'
> now do a 'disklabel -B -b /mnt/boot/boot1 -s /mnt/boot/boot2 /dev/vn0

Actually I am using the doFS.sh script from /usr/src/release. The disklabel
is done (without the -b and -s options though) by that script. Also I used
to be able to build bootable CDs from the same procedure a few weeks ago
(before the code in /usr/src/sys/boot was updated).

The CD is recognized as bootable and starts to boot. I can stop the boot at
the first "spinning bar" (I think that's boot0 or boot1) before the control
is passed to "loader".

From there I am sort of stuck: the only thing I can boot is loader which in
turn crashes immediately. I tried to load "kernel.gz" but its format is not
recognized at this stage of the boot (probably because it is compressed).



BTW I tried you procedure above, and I get:

su-2.03# vnconfig /dev/vn0 boot.cdrom.img
su-2.03# mount /dev/vn0 /mnt
su-2.03# disklabel -B -b /mnt/boot/boot1 -s /mnt/boot/boot2 /dev/vn0
disklabel: /dev/vn0: Device busy
su-2.03# disklabel -B -b /mnt/boot/boot1 -s /mnt/boot/boot2 /mnt
disklabel: /mnt: Is a directory
su-2.03# umount /mnt
su-2.03# disklabel -B -b mindbox/boot/boot1 -s mindbox/boot/boot2 /dev/vn0
disklabel: ioctl DIOCWLABEL: Operation not supported by device
su-2.03#




I'd rather fix the problem with the current version of the boot code, but
time is pressing and I am tempted to revert to the code tagged with the
FreeBSD-4.0 release. Is this something that I should do ?



Patrick.




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