disk mapping

Lowell Gilbert freebsd-questions-local at be-well.ilk.org
Tue Jan 10 06:15:32 PST 2006

Albert Shih <shih at math.jussieu.fr> writes:

> Hi all
> I've question about freebsd disk name.
> Actually I've a server to be change, but I don't change the disk array
> (external)
> On my new server I've install a FreeBSD 5.4 (without the disk array because
> it's on production). When I try to switch the old server by the new one,
> the kernel don't boot because the disk is re-map. When I've install the
> FreeBSD the / is on /dev/da0(s*) (this is without the disk array). But
> after I plug the disk array and reboot this is the disk array to have
> /dev/da0. And of course the kernel don't find the /.
> How can I fix this ?. I don't have the possibility to make many test or
> install with the disk array plug (because it's on production).

Figure out what SCSI bus the boot disk is on, and wire it down (see
scsi(4) for syntax) so that you can specify a fixed disk in fstab(5).

Lowell Gilbert, embedded/networking software engineer, Boston area

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