xen:~ # xc_dom_create.py -f /etc/xc/test -D vmid=1
Parsing config file '/etc/xc/test'
/usr/lib/python2.3/site-packages/XenoUtil.py:96: FutureWarning: x<<y losing
bits or changing sign will return a long in Python 2.4 and up
a = ( (string.atoi(l[0])<<24) | (string.atoi(l[1])<<16) |
VM image : "/boot/xenolinux-new.gz"
VM ramdisk : ""
VM memory (MB) : "64"
VM IP address(es) : "10.0.0.4; 169.254.1.1"
VM block device(s) : "vd:1,sda1,w; vd:2,sda2,w"
VM cmdline : " root=/dev/sda1 VMID=1 "
Traceback (most recent call last):
File "/usr/bin/xc_dom_create.py", line 308, in ?
current_id = make_domain()
File "/usr/bin/xc_dom_create.py", line 266, in make_domain
extents=segments):
SystemError: NULL result without error in PyObject_Call
xen:~ # xc_dom_control.py list
Dom Name Mem(kb) CPU State Time(s)
0 Domain-0 131072 0 r- 58
1 Test domain [1] 65536 0 -s 0
xen:~ # cat /etc/xc/test
##### Edit this python file to reflect the configuration of your system
##### This example script expects a variable called 'vmid' to be set.
def config_usage ():
print >>sys.stderr,"""
The config file '%s' requires the following variable to be defined:
vmid -- Numeric identifier for the new domain, used to calculate
the VM's IP address and root partition. E.g. -Dvmid=1
""" % config_file
try:
vmid=int(vmid) # convert to integer
except:
print >>sys.stderr,"%s: This script expects 'vmid' to be set using -D
vmid=X" % config_file
assert()
if vmid == 0:
print >>sys.stderr,"%s: 'vmid' must be greater than 0" % config_file
assert()
# STEP 1. Specify kernel image file and otional ramdisk. Can be gzip'ed.
image = "/boot/xenolinux.gz"
ramdisk = ""
#ramdisk = "/boot/initrd.gz"
builder_fn='linux' # this is a linux domain
# STEP 2. The initial memory allocation (in megabytes) for the new domain.
mem_size = 64
# STEP 3. A handy name for your new domain.
domain_name = "Test domain [%d]" % vmid
# STEP 4. Specify IP address(es), for the new domain. You need to
# configure IP addrs within the domain just as you do normally. This
# is just to let Xen know about them so it can route packets
# appropriately.
#vfr_ipaddr = ["111.222.333.444","222.333.444.555"]
vfr_ipaddr =
[XenoUtil.add_offset_to_ip(XenoUtil.get_current_ipaddr(),vmid+1),
XenoUtil.add_offset_to_ip('169.254.1.0',vmid),]
# STEP 5a. Identify any physcial partitions or virtual disks you want the
# domain to have access to, and what you want them accessible as
# e.g. vbd_list = [ ('phy:sda1','sda1', 'w'),
# ('phy:sda%d' % (3+vmid), 'hda2', 'r'),
# ('vd:as73gd784dh','hda1','w'),
# ('phy:cdrom','hdd','r')
vbd_list = [ ( 'vd:1','sda1','w' ),
( 'vd:2','sda2','w' ) ]
# STEP 5b. Set the VBD expertise level. Most people should leave this
# on 0, at least to begin with - this script can detect most dangerous
# disk sharing between domains and with this set to zero it will only
# allow read only sharing.
vbd_expert = 0
# STEP 6. Build the command line for the new domain. Edit as req'd.
# You only need the ip= line if you're NFS booting or the root file system
# doesn't set it later e.g. in ifcfg-eth0 or via DHCP
# You can use 'extrabit' to set the runlevel and custom environment
# variables used by custom rc scripts (e.g. VMID=, usr= )
netmask = XenoUtil.get_current_ipmask()
gateway = XenoUtil.get_current_ipgw()
nfsserv = '169.254.1.0'
#cmdline_ip =
"ip="+vfr_ipaddr[0]+":"+nfsserv+":"+gateway+":"+netmask+"::eth0:off"
cmdline_root = "root=/dev/sda1 VMID=%d" % vmid
#cmdline_root = "root=/dev/nfs nfsroot=/full/path/to/root/directory"
#cmdline_extra = "4 VMID=%d usr=/dev/sda6" % vmid
# STEP 7. Set according to whether you want the script to watch the domain
# and auto-restart it should it die or exit.
auto_restart = False
#auto_restart = True
-------------------------------------------------------
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