Re: [Xen-users] Re: OpenBSD/i386 on Xen 3 with HVM

[Ben Sargeant <bjs@xxxxxxxxxxxxxxx>]

Alexander Iliev wrote:

> > Henning Sprang wrote:
> >   
>   
>> >> As far as I know, no *BSD runs in hvm mode on Xen currently, only
>> >> Linux and Windows. There are some threads about that - sorry, I don't
>> >> remember the names of those, as well as I don't remember what the
>> >> exact problems are and if/when they will be solved.
>> >>     
>>     
You may have seen this project for OpenBSD on xen, which doesn't need
hvm mode.
http://anil.recoil.org/blog/articles/2006/08/21/openbsd-xen-boots-multi-user

I can get the Openbsd kernel to boot, however I have trouble getting it
to find the ramdisk.  Perhaps someone can help me from here.

---><-----------------------------------------------------------------------------------------------------------------
xen:/etc/xen# xm create openbsd.cfg -c
Using config file "openbsd.cfg".
Started domain openbsd
[ using 189284 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
        The Regents of the University of California.  All rights reserved.
Copyright (c) 1995-2006 OpenBSD. All rights reserved. 
http://www.OpenBSD.org

OpenBSD 4.0-current (RAMDISK_XENU) #0: Wed Nov 15 09:40:34 EST 2006
   
ben@xxxxxxxxxxxxxxxxxxxxxxxx:/usr/src/openbsd-xen-sys.hg/arch/xen/compile/RAMDISK_XENU
cpu0: Intel(R) Pentium(R) 4 CPU 2.66GHz ("GenuineIntel" 686-class) 2.66 GHz
cpu0:
FPU,V86,DE,TSC,MSR,PAE,MCE,CX8,APIC,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID
real mem  = 128950272 (125928K)
avail mem = 117112832 (114368K)
using 1599 buffers containing 6549504 bytes (6396K) of memory
mainbus0 (root)
cpu0 at mainbus0
hypervisor0 at mainbus0
debug virtual interrupt using event channel 3
xenbus0 at hypervisor0: Xen Virtual Bus Interface
xencons0 at hypervisor0: Xen Virtual Console Driver
xencons0: console major 86, unit 0
xencons0: using event channel 2
npx0 at hypervisor0: using exception 16
Xen clock: using event channel 4
rd0: fixed, 3800 blocks
xenbus0: using event channel 1
root on rd0a
rootdev=0x1100 rrootdev=0x2f00 rawdev=0x2f02
panic: root filesystem has size 0
Stopped at      Debugger+0x4:   popl    %ebp
RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC!
DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION!
ddb>
-------------------------------------------------------------------------------------------------------><--------------------------

Cheers
Ben




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