Cannot create custom FreeBSD 7.0 install CD for serial console
koitsu at FreeBSD.org
Sun Oct 5 10:41:53 UTC 2008
On Sun, Oct 05, 2008 at 01:26:37AM -0700, Carl wrote:
> On Thu Oct 2 06:59:47 UTC 2008 Jonathan McKeown wrote:
>> On a system running 6.2-RELEASE, with a 6.2-RELEASE Disc 1 in the CD
>> drive but not mounted:
>> mkdir serialcd
>> tar xvfC /dev/acd0 serialcd
>> These two commands created a directory tree in serialcd containing most
>> of the contents of the CD. There was a ``tar ignoring out-of-order
>> file'' error, and when I mounted the CD and ran
>> diff -qr /cdrom serialcd
>> it reported that RELNOTES.TXT differed - in fact the version in the
>> serialcd directory turned out to have zero length. [I suspect you could
>> probably do this comparison quicker with mtree, and I never did bother
>> to fix it or find out why it was happening]
> Thanks, Jonathan. So I've redone the process again. I'm working from the
> original ISO image instead of a physical CD copy of it, so I utilize
> step 4 from Jeremy Chadwick's document
> (http://jdc.parodius.com/freebsd/pxeboot_serial_install.html) to make
> the initial directory tree. There are no tar error messages.
>> I edited serialcd/boot/loader.conf to include the line
> I did exactly that, although I also tried adding the following lines
> instead on a separate attempt:
>> I then ran
>> mkisofs -J -r -b boot/cdboot -no-emul-boot -o serialcd.iso serialcd
>> and got an ISO image, serial.iso, which is about 600MB.
> Your switches are a little different from my original procedure, so this
> time I used yours.
>> The only drawback with this method is that the serial console only cuts
>> in just before the boot menu. I suspect that if you wanted to have a
>> serial console for every stage of the boot you would need to mess about
>> with the ramdisk image on the CD.
> So creating a boot.config in the root of the CD image cannot be used the
> way it is for a hard drive installation in order to solve that problem?
Correct. It has to "be done differently", since the bootstraps used
from the CD are different than those on a hard disk. I choose not to
use the loader.conf variables because I feel they get read "too late"
into the boot process.
For the record, I've never done a CD-based install via serial.
| Jeremy Chadwick jdc at parodius.com |
| Parodius Networking http://www.parodius.com/ |
| UNIX Systems Administrator Mountain View, CA, USA |
| Making life hard for others since 1977. PGP: 4BD6C0CB |
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