trouble mounting NetBSD file system
Karel J. Bosschaart
K.J.Bosschaart at tue.nl
Sun Jul 20 15:52:14 PDT 2003
On Sun, Jul 20, 2003 at 11:39:43PM +0200, nmanisca wrote:
> >===== Original Message From Malcolm Kay <malcolm.kay at internode.on.net>
> =====
> >On Sun, 20 Jul 2003 12:41, nmanisca wrote:
> >> I can't seem to mount one of my two NetBSD file systems. One mounts
> fine,
> >> the other is not 'seen' by FreeBSD.
> >>
> >> I have two disks. The first disk has two NetBSD file systems (/ and
> /disk)
> >> and one swap area. All three live in BIOS partition #4.
> >>
> >> The second disk has one FreeBSD file system (/) and one swap area.
> These
> >> live in BIOS partition #1.
> >>
> >> I boot to FreeBSD-5.1 and the kernel sees my disks as ad0 (my first
> disk)
> >> and ad1(my second disk). In /dev I see only two ad0* devices, ad0
> and
> >> ad0s4. I suppose ad0s4 corresponds to the #4 BIOS parition of my
> first
> >> disk. I can mount this just fine; it looks like NetBSD's / (NetBSD
> calls
> >> it wd0a).
> >
> >Under FreeBSD 4.x the BSD partitions on the first disk would be ad0s4a
> and
> >ads04e; and if you want the swap partition ad0s4b.
> >ad0s4 is actually the address of the entire BIOS partition(slice).
> >
> >If this is the only slice with a BSD disklabel then ad0a, ad0e and ad0b
>
> should
> >be legitimate alternative names. (All I suspect very similar to NetBSD,
> using
> >ad in place of wd -- historically it was also wd in FreeBSD)
>
> I would expect to see these devices in /dev, but they're just not there.
>
>
> >If the devices with a,b and e suffixes don't exist you may need to make
> them
> >using /dev/MAKEDEV.
> >
> >FreeBSD 5.x may be a little different (and outside my ken) but the
> clues
> >should be in the above.
>
> I think devfs is supposed to make the device nodes itself. The man page
> for
> MAKEDEV says it's been deprecated. Time for me to learn more about
> devfs.
I had the same problem recently with -current and an OpenBSD disk. devfs
would not make the necessary device node so I'm stuck. Works fine in -stable
however after making the node.
> I'm reverting to 4.8 now to see if the device shows up.
>
I expect that it works in 4.8.
Karel.
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