[Xen-users] xen 3.0.2 does fail without configuration file.

[Julian Hagenauer <chaosbringer@xxxxxx>]

Hi,
i am running debian sarge with selfcompiled xen 3.0.2.
I can easily start and halt domains, if i create them woith a 
configurationfile...
/etc/xen/vm01:
name="vm01"
kernel="/boot/vmlinuz-2.6-xenU"
root="/dev/hda1"
memory=64
disk=['file:/vserver/images/vm01.img,hda1,w']

# network
vif = [ '' ]
dhcp="off"
ip="192.168.1.4"
netmask="255.255.255.0"
gateway="192.168.1.1"
hostname=""

extra="3"

I run 'xm create vm01',' xm console vm01',' xm shutdown vm01'... Works 
pretty.
Than i tried to start a vm without a configurationfile by running  'xm 
create "/dev/null" kernel="/boot/vmlinuz-2.6.16-xenU" name=test 
memory=64 disk=['file:/vserver/images/base.img,hda1,w'] root="/dev/hda1" 
extra=3'.
Unfortunately this returns:
Using config file "/dev/null".
Error: Device 769 (vbd) could not be connected. Hotplug scripts not working.

xend.log:

[2006-07-19 11:53:49 xend.XendDomainInfo] DEBUG (XendDomainInfo:178) 
XendDomainInfo.create(['vm', ['name', 'test'], ['memory', 64], ['vcpus', 1], 
['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.16-xenU'], ['root', 
'/dev/hda1'], ['args', '3']]], ['device', ['vbd', ['uname', 
'[file:/vserver/images/base.img'], ['dev', 'hda1'], ['mode', 'w]']]]])
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:284) 
parseConfig: config is ['vm', ['name', 'test'], ['memory', 64], ['vcpus', 1], 
['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.16-xenU'], ['root', 
'/dev/hda1'], ['args', '3']]], ['device', ['vbd', ['uname', 
'[file:/vserver/images/base.img'], ['dev', 'hda1'], ['mode', 'w]']]]]
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:380) 
parseConfig: result is {'ssidref': None, 'uuid': None, 'on_crash': None, 
'on_reboot': None, 'image': ['linux', ['kernel', '/boot/vmlinuz-2.6.16-xenU'], 
['root', '/dev/hda1'], ['args', '3']], 'on_poweroff': None, 'cpus': None, 
'name': 'test', 'backend': [], 'vcpus': 1, 'cpu_weight': None, 'vcpu_avail': 
None, 'memory': 64, 'device': [('vbd', ['vbd', ['uname', 
'[file:/vserver/images/base.img'], ['dev', 'hda1'], ['mode', 'w]']])], 
'bootloader': None, 'cpu': None, 'maxmem': None}
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:1164) 
XendDomainInfo.construct: None 0
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:1196) 
XendDomainInfo.initDomain: 11 1.0
[2006-07-19 11:53:50 xend] DEBUG (balloon:126) Balloon: free 178; need 65; done.
[2006-07-19 11:53:50 xend] INFO (image:135) buildDomain os=linux dom=11 vcpus=1
[2006-07-19 11:53:50 xend] DEBUG (image:173) dom            = 11
[2006-07-19 11:53:50 xend] DEBUG (image:174) image          = 
/boot/vmlinuz-2.6.16-xenU
[2006-07-19 11:53:50 xend] DEBUG (image:175) store_evtchn   = 1
[2006-07-19 11:53:50 xend] DEBUG (image:176) console_evtchn = 2
[2006-07-19 11:53:50 xend] DEBUG (image:177) cmdline        =  root=/dev/hda1 3
[2006-07-19 11:53:50 xend] DEBUG (image:178) ramdisk        = 
[2006-07-19 11:53:50 xend] DEBUG (image:179) vcpus          = 1
[2006-07-19 11:53:50 xend] DEBUG (image:180) features       = 
[2006-07-19 11:53:50 xend] DEBUG (DevController:103) DevController: writing {'virtual-device': '769', 'backend-id': '0', 'state': '1', 'backend': '/local/domain/0/backend/vbd/11/769'} to /local/domain/11/device/vbd/769.
[2006-07-19 11:53:50 xend] DEBUG (DevController:105) DevController: writing 
{'domain': 'test', 'frontend': '/local/domain/11/device/vbd/769', 'dev': 
'hda1', 'state': '1', 'params': '/vserver/images/base.img', 'mode': 'w]', 
'frontend-id': '11', 'type': '[file'} to /local/domain/0/backend/vbd/11/769.
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:671) Storing VM 
details: {'ssidref': '0', 'uuid': '0a43fd07-d274-54f3-5428-9dee355c39a1', 
'on_reboot': 'restart', 'start_time': '1153302830.36', 'on_poweroff': 
'destroy', 'name': 'test', 'vcpus': '1', 'vcpu_avail': '1', 'memory': '64', 
'on_crash': 'restart', 'image': '(linux (kernel /boot/vmlinuz-2.6.16-xenU) 
(root /dev/hda1) (args 3))', 'maxmem': '64'}
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:696) Storing 
domain details: {'console/ring-ref': '62464', 'console/port': '2', 'name': 
'test', 'console/limit': '1048576', 'vm': 
'/vm/0a43fd07-d274-54f3-5428-9dee355c39a1', 'domid': '11', 
'cpu/0/availability': 'online', 'memory/target': '65536', 'store/ring-ref': 
'62465', 'store/port': '1'}
[2006-07-19 11:53:50 xend.XendDomainInfo] DEBUG (XendDomainInfo:877) 
XendDomainInfo.handleShutdownWatch
[2006-07-19 11:53:50 xend] DEBUG (DevController:132) Waiting for devices vif.
[2006-07-19 11:53:50 xend] DEBUG (DevController:132) Waiting for devices usb.
[2006-07-19 11:53:50 xend] DEBUG (DevController:132) Waiting for devices vbd.
[2006-07-19 11:53:50 xend] DEBUG (DevController:138) Waiting for 769.
[2006-07-19 11:53:50 xend] DEBUG (DevController:403) hotplugStatusCallback 
/local/domain/0/backend/vbd/11/769/hotplug-status.
[2006-07-19 11:54:00 xend.XendDomainInfo] DEBUG (XendDomainInfo:1327) 
XendDomainInfo.destroy: domid=11
[2006-07-19 11:54:00 xend.XendDomainInfo] DEBUG (XendDomainInfo:1335) 
XendDomainInfo.destroyDomain(11)
[2006-07-19 11:54:00 xend] DEBUG (DevController:403) hotplugStatusCallback 
/local/domain/0/backend/vbd/11/769/hotplug-status.
[2006-07-19 11:54:00 xend] DEBUG (DevController:403) hotplugStatusCallback 
/local/domain/0/backend/vbd/11/769/hotplug-status.





The xen-installscript copied the dist-files for hotpluged-systems, so i 
should not mind udev, should i?
Why does xen behave different when passing configuration via commandline?


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