Fwd: [Xen-users] full virtualization

["benjamin henrion" <benjhenrion@xxxxxxxxx>]

---------- Forwarded message ----------
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: 5 févr. 2007 06:12
Subject: Re: [Xen-users] full virtualization
To: xen-users@xxxxxxxxxxxxxxxxxxx
Cc: Henning Sprang <henning_sprang@xxxxxx
>, benjamin henrion <benjhenrion@xxxxxxxxx>

> Please show us your domU config.
>
> Are you sure the disk you are trying tpo run you domain on is not
> mounted at the same time in dom0?

Sounds like something is accessing the disk... Xen is preventing the domain
from starting as a safety precaution, since having several domains accessing
the same disk can be unsafe.

Is the virtual disk mounted in dom0?  Have you allowed another domain (either
paravirt or full virt) to have access to it?

Cheers,
Mark

--
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!



Ok ! this is my conf

#  -*- mode: python; -*-
#============================================================================
# Python configuration setup for 'xm create'.
# This script sets the parameters used when a domain is created using 'xm create'.
# You use a separate script for each domain you want to create, or 
# you can set the parameters for the domain on the xm command line.
#============================================================================

import os, re
arch = os.uname()[4]
if re.search('64', arch):
    arch_libdir = 'lib64'
else:
    arch_libdir = 'lib'

#----------------------------------------------------------------------------
# Kernel image file.
kernel = "/usr/lib/xen/boot/hvmloader"

# The domain build function. HVM domain uses 'hvm'.
builder='hvm'

# Initial memory allocation (in megabytes) for the new domain.
#
# WARNING: Creating a domain with insufficient memory may cause out of
#          memory errors. The domain needs enough memory to boot kernel
#          and modules. Allocating less than 32MBs is not recommended.
memory = 512

# Shadow pagetable memory for the domain, in MB.
# Should be at least 2KB per MB of domain memory, plus a few MB per vcpu.
shadow_memory = 8

# A name for your domain. All domains must have different names.
name = "debianFull"
vif = ['type=ioemu, mac=aa:00:0b:00:00:11, bridge=xenbr0' ]

# 128-bit UUID for the domain.  The default behavior is to generate a new UUID
# on each call to 'xm create'.
#uuid = "06ed00fe-1162-4fc4-b5d8-11993ee4a8b9"

#-----------------------------------------------------------------------------
# The number of cpus guest platform has, default=1
#vcpus=1

# Enable/disable HVM guest PAE, default=1 (enabled)
#pae=1

# Enable/disable HVM guest ACPI, default=1 (enabled)
#acpi=1

# Enable/disable HVM APIC mode, default=1 (enabled)
# Note that this option is ignored if vcpus > 1
#apic=1

# List of which CPUS this domain is allowed to use, default Xen picks
#cpus = ""         # leave to Xen to pick
#cpus = "0"        # all vcpus run on CPU0
#cpus = "0-3,5,^1" # run on cpus 0,2,3,5

# Optionally define mac and/or bridge for the network interfaces.
# Random MACs are assigned if not given.
#vif = [ 'type=ioemu, mac=00:16:3e:00:00:11, bridge=xenbr0, model=ne2k_pci' ]
# type=ioemu specify the NIC is an ioemu device not netfront
#vif = [ 'type=ioemu, bridge=xenbr0' ]

#----------------------------------------------------------------------------
# Define the disk devices you want the domain to have access to, and
# what you want them accessible as.
# Each disk entry is of the form phy:UNAME,DEV,MODE
# where UNAME is the device, DEV is the device name the domain will see,
# and MODE is r for read-only, w for read-write.

#disk = [ 'phy:hda1,hda1,r' ]
disk = [ 'phy:/dev/VG_Guests/Debian1.img,ioemu:hda,w']
#disk = ['file:/var/images/min-el3-i386.img,hda,w', ',hdc:cdrom,r' ]

#----------------------------------------------------------------------------
# Configure the behaviour when a domain exits.  There are three 'reasons'
# for a domain to stop: poweroff, reboot, and crash.  For each of these you
# may specify:
#
#   "destroy",        meaning that the domain is cleaned up as normal;
#   "restart",        meaning that a new domain is started in place of the old
#                     one;
#   "preserve",       meaning that no clean-up is done until the domain is
#                     manually destroyed (using xm destroy, for example); or
#   "rename-restart", meaning that the old domain is not cleaned up, but is
#                     renamed and a new domain started in its place.
#
# The default is
#
#   
#   on_reboot   = 'restart'
#   on_crash    = 'restart'
#
# For backwards compatibility we also support the deprecated option restart
#
# restart = 'onreboot' means 
#                            on_reboot   = 'restart'
#                            on_crash    = 'destroy'
#
# restart = 'always'   means >#                            on_reboot   = 'restart'
#                            on_crash    = 'restart'
#
# restart = 'never'    means >#                            on_reboot   = 'destroy'
#                            on_crash    = 'destroy'

#>#on_reboot   = 'restart'
#on_crash    = 'restart'

#============================================================================

# New stuff
device_model = '/usr/' + arch_libdir + '/xen/bin/qemu-dm'

#-----------------------------------------------------------------------------
# boot on floppy (a), hard disk (c) or CD-ROM (d) 
# default: hard disk, cd-rom, floppy
cdrom="/tmp/debian-testing-i386-netinst.iso
"
#boot="d"

#-----------------------------------------------------------------------------
#  write to temporary files instead of disk image files
#snapshot=1

#----------------------------------------------------------------------------
# enable SDL library for graphics, default = 0
sdl=1

#----------------------------------------------------------------------------
# enable VNC library for graphics, default = 1
vnc=1
vmcviewer=0
#----------------------------------------------------------------------------
# address that should be listened on for the VNC server if vnc is set.
# default is to use 'vnc-listen' setting from /etc/xen/xend-
config.sxp
#vnclisten="127.0.0.1"

#----------------------------------------------------------------------------
# set VNC display number, default = domid
#vncdisplay=1

#----------------------------------------------------------------------------
# try to find an unused port for the VNC server, default = 1
#vncunused=1

#----------------------------------------------------------------------------
# enable spawning vncviewer for domain's console
# (only valid when vnc=1), default = 0
#vncconsole=0

#----------------------------------------------------------------------------
# set password for domain's VNC console
# default is depents on vncpasswd in xend-config.sxp
vncpasswd=''

#----------------------------------------------------------------------------
# no graphics, use serial port
#nographic=0
#------------------------
ne2000=0
#------------------------
#----------------------------------------------------------------------------
# enable stdvga, default = 0 (use cirrus logic device model)
#stdvga=0

#-----------------------------------------------------------------------------
#   serial port re-direct to pty deivce, /dev/pts/n 
#   then xm console or minicom can connect
#serial='pty'


#-----------------------------------------------------------------------------
#   enable sound card support, [sb16|es1370|all|..,..], default none
#soundhw='sb16'


#-----------------------------------------------------------------------------
#    set the real time clock to local time [default=0 
i.e. set to utc]
#localtime=1


#-----------------------------------------------------------------------------
#    start in full screen
#full-screen=1   


#-----------------------------------------------------------------------------
#   Enable USB support (specific devices specified at runtime through the
#            monitor window)
#usb=1

#   Enable USB mouse support (only enable one of the following, `mouse' for
#                  PS/2 protocol relative mouse, `tablet' for
#                  absolute mouse)
#usbdevice='mouse'
#usbdevice='tablet'

#-----------------------------------------------------------------------------
#   Set keyboard layout, default is en-us keyboard. 
#keymap='ja'



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users