Xen users - Feb 2007 - unable to create the Unpriviledge domain

hi,

i have a problem while creating the guest domain.

i have three partitions

/dev/VolGroup00/LogVol00 as ''/'' root partition
/dev/VolGroup00/LogVol01 as /home
/dev/VolGroup00/LogVol02 as swap partition

i have exported the root filesystem as the root file system in the
virtual machine. ( Can i do so ??? )

My config file for the domainU is as follows:

<<<<<==================[ Start File
]=============================>>>>>>

#  -*- 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.
#===========================================================================
#----------------------------------------------------------------------------
# Kernel image file.
kernel = "/boot/vmlinuz-2.6.16.33-xenU"

# Optional ramdisk.
ramdisk = "/boot/initrd-2.6.16.33-xenU.img"

# The domain build function. Default is ''linux''.
#builder=''linux''

# 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 = 256

# A name for your domain. All domains must have different names.
name = "ExampleDomain"

# 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"

# 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

# Number of Virtual CPUS to use, default is 1
#vcpus = 1

#----------------------------------------------------------------------------
# Define network interfaces.

# By default, no network interfaces are configured.  You may have one
created
# with sensible defaults using an empty vif clause:
#
# vif = [ '''' ]
#
# or optionally override backend, bridge, ip, mac, script, type, or
vifname:
#
# vif = [ ''mac=00:16:3e:00:00:11, bridge=xenbr0'' ]
#
# or more than one interface may be configured:
#
# vif = [ '''', ''bridge=xenbr1'' ]

vif = [ '''' ]

#----------------------------------------------------------------------------
# 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:VolGroup00/LogVol00,sda1,r'' ]

#----------------------------------------------------------------------------
# Define to which TPM instance the user domain should communicate.
# The vtpm entry is of the form
''instance=INSTANCE,backend=DOM''
# where INSTANCE indicates the instance number of the TPM the VM
# should be talking to and DOM provides the domain where the backend
# is located.
# Note that no two virtual machines should try to connect to the same
# TPM instance. The handling of all TPM instances does require
# some management effort in so far that VM configration files (and thus
# a VM) should be associated with a TPM instance throughout the lifetime
# of the VM / VM configuration file. The instance number must be
# greater or equal to 1.
#vtpm = [ ''instance=1,backend=0'' ]

#----------------------------------------------------------------------------
# Set the kernel command line for the new domain.
# You only need to define the IP parameters and hostname if the
domain''s
# IP config doesn''t, e.g. in ifcfg-eth0 or via DHCP.
# You can use ''extra'' to set the runlevel and custom
environment
# variables used by custom rc scripts (e.g. VMID=, usr= ).

# Set if you want dhcp to allocate the IP address.
dhcp="dhcp"
# Set netmask.
#netmask# Set default gateway.
#gateway# Set the hostname.
#hostname= "vm%d" % vmid

# Set root device.
root = "/dev/sda2 ro"

# Root device for nfs.
#root = "/dev/nfs"
# The nfs server.
#nfs_server = ''169.254.1.0''  
# Root directory on the nfs server.
#nfs_root   = ''/full/path/to/root/directory''

# Sets runlevel 4.
extra = "4"

#----------------------------------------------------------------------------
# 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_poweroff = ''destroy''
#   on_reboot   = ''restart''
#   on_crash    = ''restart''
#
# For backwards compatibility we also support the deprecated option
restart
#
# restart = ''onreboot'' means on_poweroff =
''destroy''
#                            on_reboot   = ''restart''
#                            on_crash    = ''destroy''
#
# restart = ''always''   means on_poweroff =
''restart''
#                            on_reboot   = ''restart''
#                            on_crash    = ''restart''
#
# restart = ''never''    means on_poweroff =
''destroy''
#                            on_reboot   = ''destroy''
#                            on_crash    = ''destroy''

on_poweroff = ''destroy''
on_reboot   = ''restart''
on_crash    = ''restart''

#===========================================================================
<<<<<===========================[ End File
]======================>>>>>>

Whenever i try to create the Unprivileged domain it says :

[root@localhost ~]# xm create -c vm1
Using config file "./vm1".
Error: string index out of range
[root@localhost ~]# 

can anybody please explain me what is wrong with the configuration file.




Regards
vijay shankar yadav.
 




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On 2/19/07, vijay shankar yadav <vijay.yadav@nechclst.in>
wrote:
>
> can anybody please explain me what is wrong with the configuration file.
I think you have a simple error in you domU config, but I am not
looking at it with all these comments and wrong linebreaks.
Please repost it without all the unneeded comments, and we can look at it.

Henning

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yeh Henning is Right. No time to look and search for the right info in your
config. So if you repost your config with deleting unnecesary parts, then i
guess we can have a look to your problem...
RAM could be a error but i am not going through ur config....so not sure...
All the Best



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