Re: [Fedora-xen] vnc trick?

[Justin Conover]

On 10/27/06, Daniel P. Berrange <berrange(a)redhat.com&gt; wrote:
>  On Thu, Oct 26, 2006 at 08:25:04PM -0500, Justin Conover wrote:
>  > Is there something I'm missing with VNCserver/viewer?
>  >
>  > # xenguest-install
>  > Would you like a fully virtualized guest (yes or no)?  This will allow
>  you
>  > to run unmodified operating systems. yes
>  > What is the name of your virtual machine? fc6-httpd01
>  > How much RAM should be allocated (in megabytes)? 512
>  > What would you like to use as the disk (path)? /home/xen/fc6-httpd01
>  > How large would you like the disk to be (in gigabytes)? 6
>  > Would you like to enable graphics support? (yes or no) yes
>  > What would you like to use for the virtual CD image?
>  /home/xen/FC-6-x86_64-
>  > DVD.iso
>  >
>  >
>  > Starting install...
>  > libvir: Xen Daemon error : GET operation failed: No such domain
>  fc6-httpd01
>  >
>  > VNC Viewer Free Edition 4.1.2 for X - built Oct 25 2006 09:08:37
>  > Copyright (C) 2002-2005 RealVNC Ltd.
>  > See http://www.realvnc.com for information on VNC.
>  >
>  > Thu Oct 26 20:21:19 2006
>  > main:        unable to connect to host: Connection refused (111)
>  > Domain installation still in progress.  You can reconnect
>  > to the console to complete the installation process.
>  > [root@kainos xen]# xm list
>  > Name                                      ID Mem(MiB) VCPUs State
>  Time(s)
>  > Domain-0                                   0     1477     2 r-----
>  1003.2
>  > fc6-httpd01                               12      512     1 r-----
>  34.2
>  > [root@kainos xen]# xm console fc6-httpd01
>  > xenconsole: Could not read tty from store: No such file or directory
>
>  Ok, a couple of things to check:
>
>  - Run  'virsh dumpxml fc6-httpd01'  and look to see if there is a
>     <graphics type='vnc'> tag, and whether it has a port number in it
>  - Run 'ps -axuwwf | grep vnc' to see if there is a 'xen-vncfb'
>     server daemon running in Dom0
>  - Run 'netstat -t -l -n -p' to see if this server daemon is listening
>     on the port indicated by the XML dump in step 1. This will also tell
>     you if its listening on 127.0.0.1, or all interfaces
>
>  If any of that is missing/wrong, then /var/log/xen/xend-debug.log is
>  where the VNC server stucks its logs.
>
>  Regards,
>  Dan.
>  --
>  |=- Red Hat, Engineering, Emerging Technologies, Boston.  [phone]
>  -=|
>  |=-           Perl modules: http://search.cpan.org/~danberr/
>                -=|
>  |=-               Projects: http://freshmeat.net/~danielpb/
>  -=|
>  |=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B
>  9505  -=|
>  
# virsh dumpxml fc6-httpd01
<domain type='xen' id='1'>
  <name>fc6-httpd01</name>
  <uuid>5ba9787fba6a82a1d3780ca7be1101ff</uuid>
  <os>
    <type>linux</type>
    <kernel>/var/lib/xen/vmlinuz.7EPZk8</kernel>
    <initrd>/var/lib/xen/initrd.img.4S_Xjg</initrd>
    <cmdline> method=
http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os
</cmdline>
  </os>
  <memory>524288</memory>
  <vcpu>1</vcpu>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>destroy</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <interface type='bridge'>
      <source bridge='xenbr0'/>
      <mac address='00:16:3e:71:6c:62'/>
      <script path='vif-bridge'/>
    </interface>
    <disk type='file' device='disk'>
      <source file='/home/xen/fc6-httpd01'/>
      <target dev='xvda'/>
    </disk>
    <graphics type='vnc' port='5900'/>
    <console tty='/dev/pts/3'/>
  </devices>
</domain>



# cat xend.log
[2006-10-27 21:27:29 xend 2845] INFO (SrvDaemon:283) Xend Daemon started
[2006-10-27 21:27:29 xend 2845] INFO (SrvDaemon:287) Xend changeset:
unavailable .
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] DEBUG (XendDomainInfo:212)
XendDomainInfo.recreate({'paused': 0, 'cpu_time': 23507757604L,
'ssidref':
0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb':
1925252, 'maxmem_kb':
17179869180, 'max_vcpu_id': 1, 'crashed': 0, 'running': 1,
'shutdown': 0,
'online_vcpus': 2, 'blocked': 0})
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] INFO (XendDomainInfo:224)
Recreating domain 0, UUID 00000000-0000-0000-0000-000000000000.
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] WARNING (XendDomainInfo:246)
No vm path in store for existing domain 0
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] DEBUG (XendDomainInfo:712)
Storing VM details: {'shadow_memory': '0', 'uuid':
'00000000-0000-0000-0000-000000000000', 'on_reboot': 'restart',
'on_poweroff': 'destroy', 'name': 'Domain-0',
'xend/restart_count': '0',
'vcpus': '2', 'vcpu_avail': '3', 'memory':
'1881', 'on_crash': 'restart',
'maxmem': '1881'}
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] DEBUG (XendDomainInfo:747)
Storing domain details: {'cpu/0/availability': 'online',
'memory/target':
'1926144', 'cpu/1/availability': 'online', 'name':
'Domain-0',
'console/limit': '1048576', 'vm':
'/vm/00000000-0000-0000-0000-000000000000', 'domid': '0'}
[2006-10-27 21:27:29 xend 2845] DEBUG (XendDomain:153) number of vcpus to
use is 0
[2006-10-27 21:27:29 xend 2845] INFO (SrvServer:116) unix
path=/var/lib/xend/xend-socket
[2006-10-27 21:27:29 xend.XendDomainInfo 2845] DEBUG (XendDomainInfo:933)
XendDomainInfo.handleShutdownWatch
[2006-10-27 21:34:29 xend 3032] INFO (SrvDaemon:283) Xend Daemon started
[2006-10-27 21:34:29 xend 3032] INFO (SrvDaemon:287) Xend changeset:
unavailable .
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:212)
XendDomainInfo.recreate({'paused': 0, 'cpu_time': 24158646940L,
'ssidref':
0, 'handle': [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
'shutdown_reason': 0, 'dying': 0, 'dom': 0, 'mem_kb':
1925252, 'maxmem_kb':
17179869180, 'max_vcpu_id': 1, 'crashed': 0, 'running': 1,
'shutdown': 0,
'online_vcpus': 2, 'blocked': 0})
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] INFO (XendDomainInfo:224)
Recreating domain 0, UUID 00000000-0000-0000-0000-000000000000.
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] WARNING (XendDomainInfo:246)
No vm path in store for existing domain 0
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:712)
Storing VM details: {'shadow_memory': '0', 'uuid':
'00000000-0000-0000-0000-000000000000', 'on_reboot': 'restart',
'on_poweroff': 'destroy', 'name': 'Domain-0',
'xend/restart_count': '0',
'vcpus': '2', 'vcpu_avail': '3', 'memory':
'1881', 'on_crash': 'restart',
'maxmem': '1881'}
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:747)
Storing domain details: {'cpu/0/availability': 'online',
'memory/target':
'1926144', 'cpu/1/availability': 'online', 'name':
'Domain-0',
'console/limit': '1048576', 'vm':
'/vm/00000000-0000-0000-0000-000000000000', 'domid': '0'}
[2006-10-27 21:34:29 xend 3032] DEBUG (XendDomain:153) number of vcpus to
use is 0
[2006-10-27 21:34:29 xend 3032] INFO (SrvServer:116) unix
path=/var/lib/xend/xend-socket
[2006-10-27 21:34:29 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:933)
XendDomainInfo.handleShutdownWatch
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:190)
XendDomainInfo.create(['vm', ['name', 'fc6-httpd01'],
['memory', '512'],
['maxmem', '512'], ['vcpus', '1'], ['uuid',
'5ba9787f-ba6a-82a1-d378-0ca7be1101ff'], ['on_poweroff',
'destroy'],
['on_reboot', 'destroy'], ['on_crash', 'destroy'],
['image', ['linux',
['kernel', '/var/lib/xen/vmlinuz.7EPZk8'], ['ramdisk',
'/var/lib/xen/initrd.img.4S_Xjg'], ['args', ' method=
http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os  '],
['vnc', '1'], ['vncunused', '1']]], ['device',
['vbd', ['dev', 'xvda'],
['uname', 'file:/home/xen/fc6-httpd01'], ['mode', 'w']]],
['device', ['vif',
['mac', '00:16:3e:71:6c:62'], ['bridge', 'xenbr0'],
['script',
'/etc/xen/scripts/vif-bridge']]]])
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:296)
parseConfig: config is ['vm', ['name', 'fc6-httpd01'],
['memory', '512'],
['maxmem', '512'], ['vcpus', '1'], ['uuid',
'5ba9787f-ba6a-82a1-d378-0ca7be1101ff'], ['on_poweroff',
'destroy'],
['on_reboot', 'destroy'], ['on_crash', 'destroy'],
['image', ['linux',
['kernel', '/var/lib/xen/vmlinuz.7EPZk8'], ['ramdisk',
'/var/lib/xen/initrd.img.4S_Xjg'], ['args', ' method=
http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os  '],
['vnc', '1'], ['vncunused', '1']]], ['device',
['vbd', ['dev', 'xvda'],
['uname', 'file:/home/xen/fc6-httpd01'], ['mode', 'w']]],
['device', ['vif',
['mac', '00:16:3e:71:6c:62'], ['bridge', 'xenbr0'],
['script',
'/etc/xen/scripts/vif-bridge']]]]
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:395)
parseConfig: result is {'shadow_memory': None, 'uuid':
'5ba9787f-ba6a-82a1-d378-0ca7be1101ff', 'on_crash': 'destroy',
'on_reboot':
'destroy', 'localtime': None, 'image': ['linux',
['kernel',
'/var/lib/xen/vmlinuz.7EPZk8'], ['ramdisk',
'/var/lib/xen/initrd.img.4S_Xjg'], ['args', ' method=
http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os  '],
['vnc', '1'], ['vncunused', '1']], 'on_poweroff':
'destroy',
'bootloader_args': None, 'cpus': None, 'name':
'fc6-httpd01', 'backend': [],
'vcpus': 1, 'cpu_weight': None, 'features': None,
'vcpu_avail': None,
'memory': 512, 'device': [('vbd', ['vbd', ['dev',
'xvda'], ['uname',
'file:/home/xen/fc6-httpd01'], ['mode', 'w']]), ('vif',
['vif', ['mac',
'00:16:3e:71:6c:62'], ['bridge', 'xenbr0'], ['script',
'/etc/xen/scripts/vif-bridge']])], 'bootloader': None, 'cpu':
None,
'maxmem': 512}
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:1253)
XendDomainInfo.construct: None
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:1285)
XendDomainInfo.initDomain: 1 1.0
[2006-10-27 21:42:14 xend 3032] INFO (image:214) configuring linux guest
[2006-10-27 21:42:14 xend 3032] INFO (image:232) setting use_graphics
[2006-10-27 21:42:14 xend 3032] DEBUG (balloon:133) Balloon: 129712 KiB
free; 0 to scrub; need 524288; retries: 20.
[2006-10-27 21:42:14 xend 3032] DEBUG (balloon:148) Balloon: setting dom0
target to 1494 MiB.
[2006-10-27 21:42:14 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:1014)
Setting memory target of domain Domain-0 (0) to 1494 MiB.
[2006-10-27 21:42:14 xend 3032] DEBUG (balloon:127) Balloon: 525108 KiB
free; need 524288; done.
[2006-10-27 21:42:14 xend 3032] INFO (image:138) buildDomain os=linux dom=1
vcpus=1
[2006-10-27 21:42:14 xend 3032] DEBUG (image:193) dom            = 1
[2006-10-27 21:42:14 xend 3032] DEBUG (image:194) image          =
/var/lib/xen/vmlinuz.7EPZk8
[2006-10-27 21:42:14 xend 3032] DEBUG (image:195) store_evtchn   = 1
[2006-10-27 21:42:14 xend 3032] DEBUG (image:196) console_evtchn = 2
[2006-10-27 21:42:14 xend 3032] DEBUG (image:197) cmdline        =   method=
http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os
[2006-10-27 21:42:14 xend 3032] DEBUG (image:198) ramdisk        =
/var/lib/xen/initrd.img.4S_Xjg
[2006-10-27 21:42:14 xend 3032] DEBUG (image:199) vcpus          = 1
[2006-10-27 21:42:14 xend 3032] DEBUG (image:200) features       =
[2006-10-27 21:42:15 xend 3032] DEBUG (blkif:24) exception looking up device
number for xvda: [Errno 2] No such file or directory: '/dev/xvda'
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:110) DevController:
writing {'backend-id': '0', 'virtual-device': '51712',
'device-type':
'disk', 'state': '1', 'backend':
'/local/domain/0/backend/vbd/1/51712'} to
/local/domain/1/device/vbd/51712.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:112) DevController:
writing {'domain': 'fc6-httpd01', 'frontend':
'/local/domain/1/device/vbd/51712', 'dev': 'xvda',
'state': '1', 'params':
'/home/xen/fc6-httpd01', 'mode': 'w', 'online':
'1', 'frontend-id': '1',
'type': 'file'} to /local/domain/0/backend/vbd/1/51712.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:110) DevController:
writing {'backend-id': '0', 'mac': '00:16:3e:71:6c:62',
'handle': '0',
'state': '1', 'backend':
'/local/domain/0/backend/vif/1/0'} to
/local/domain/1/device/vif/0.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:112) DevController:
writing {'bridge': 'xenbr0', 'domain': 'fc6-httpd01',
'handle': '0',
'script': '/etc/xen/scripts/vif-bridge', 'state': '1',
'frontend':
'/local/domain/1/device/vif/0', 'mac': '00:16:3e:71:6c:62',
'online': '1',
'frontend-id': '1'} to /local/domain/0/backend/vif/1/0.
[2006-10-27 21:42:15 xend 3032] INFO (image:261) spawning video:
['/usr/lib64/xen/bin/xen-vncfb', '--unused', '--listen',
'0.0.0.0',
'--domid', '1', '--title', 'fc6-httpd01']
[2006-10-27 21:42:15 xend 3032] INFO (image:263) device model pid: 3946
[2006-10-27 21:42:15 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:712)
Storing VM details: {'shadow_memory': '0', 'uuid':
'5ba9787f-ba6a-82a1-d378-0ca7be1101ff', 'on_reboot': 'destroy',
'start_time': '1162003335.19', 'on_poweroff': 'destroy',
'name':
'fc6-httpd01', 'xend/restart_count': '0', 'vcpus':
'1', 'vcpu_avail': '1',
'memory': '512', 'on_crash': 'destroy', 'image':
"(linux (kernel
/var/lib/xen/vmlinuz.7EPZk8) (ramdisk /var/lib/xen/initrd.img.4S_Xjg) (args
' method=http://download.fedora.redhat.com/pub/fedora/linux/core/6/x86_64/os
') (vnc 1) (vncunused 1))", 'maxmem': '512'}
[2006-10-27 21:42:15 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:747)
Storing domain details: {'console/ring-ref': '187866',
'console/port': '2',
'name': 'fc6-httpd01', 'console/limit': '1048576',
'vm':
'/vm/5ba9787f-ba6a-82a1-d378-0ca7be1101ff', 'domid': '1',
'cpu/0/availability': 'online', 'memory/target': '524288',
'store/ring-ref':
'187867', 'store/port': '1'}
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices vif.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:149) Waiting for 0.
[2006-10-27 21:42:15 xend.XendDomainInfo 3032] DEBUG (XendDomainInfo:933)
XendDomainInfo.handleShutdownWatch
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vif/1/0/hotplug-status.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:478)
hotplugStatusCallback 1.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices usb.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices vbd.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:149) Waiting for 51712.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vbd/1/51712/hotplug-status.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:464)
hotplugStatusCallback /local/domain/0/backend/vbd/1/51712/hotplug-status.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:478)
hotplugStatusCallback 1.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices irq.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices pci.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices ioports.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices tap.
[2006-10-27 21:42:15 xend 3032] DEBUG (DevController:143) Waiting for
devices vtpm.
[2006-10-27 21:42:15 xend 3032] INFO (XendDomain:370) Domain fc6-httpd01 (1)
unpaused.