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Re: Problem using Xen / NetBSD domU
On Sat, Dec 10, 2005 at 04:20:24PM +0100, Eric Delcamp wrote:
> Hi,
>
> I have a real pain to make a working setup for using a NetBSD domU.
> ---------
> emule# uname -a
> NetBSD emule 3.99.11 NetBSD 3.99.11 (XEN0) #0: Sun Nov 20 03:44:33 CET
> 2005 root@emule:/usr/obj/sys/arch/i386/compile/XEN0 i386
>
> [...]
> nics = 1
> vif = [ 'mac=aa:00:00:50:02:f0, bridge=bridge0' ]
> ip = "10.0.0.10"
> netmask = "255.0.0.0"
> gateway = "10.0.0.1"
ip, netmask and gateway won't be used AFAIK
> [...]
> emule# disklabel wd1
> # /dev/rwd1d:
> type: unknown
> disk: Maxtor 6Y080L0
> label:
> flags:
> bytes/sector: 512
> sectors/track: 63
> tracks/cylinder: 16
> sectors/cylinder: 1008
> cylinders: 158816
> total sectors: 160086528
> rpm: 3600
> interleave: 1
> trackskew: 0
> cylinderskew: 0
> headswitch: 0 # microseconds
> track-to-track seek: 0 # microseconds
> drivedata: 0
>
> 16 partitions:
> # size offset fstype [fsize bsize cpg/sgs]
> a: 16007168 63 4.2BSD 1024 8192 46536 # (Cyl. 0*-
> 15880*)
> b: 524288 16007231 swap # (Cyl. 15880*-
> 16400*)
> c: 160086465 63 unused 0 0 # (Cyl. 0*-
> 158815)
> d: 160086528 0 unused 0 0 # (Cyl. 0 -
> 158815)
>
> ---------
> I'm trying to use wd1a as root for my NetBSD domU (and maybe wd1b as
> swap if possible).
> I've tried a lot of different configurations. Each time, I have to think
> a LOT during install process to size my partitions (sometimes it take my
> whole disk and not only wd1a, sometimes it's starting at sector 0,
> sometimes I dont have the swap partition). But if I change something or
> nothing, I'm still stuck, after asking if I want to write after MBR
> (choosing yes or no dont change anything) to a "WRITE ERROR" under domU,
> and a "xbd IO domain 4: error 30" to dom0 console.
> I have also tried to use a file instead of physical partitions. Same
> problem.
> I'm still searching a real noob documentation about setting a domU,
> http://www.netbsd.org/Ports/xen/howto.html is a good start but dont talk
> about how to prepare a file or a partition / disk before.
>
> Could you help me ?
Your problem is that your wd1a is the same as wd1c, so the disklabel in your
domU will overlap the disklabel of your disk. keep a few spare sectors
for the disklabel by making wd1a start at sector 100 (for example) and it
should work.
--
Manuel Bouyer <bouyer%antioche.eu.org@localhost>
NetBSD: 26 ans d'experience feront toujours la difference
--
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