Getting Xen DomU setup and running for first time
Tiago Cruz
tiagocruz at forumgdh.net
Fri Jun 20 16:24:57 UTC 2008
Use some like this:
# cat /etc/xen/teste2
name = "teste2"
uuid = "16c7b89e-417d-47ae-3013-8f6283b3620b"
maxmem = 512
memory = 512
vcpus = 1
bootloader = "/usr/bin/pygrub"
on_poweroff = "destroy"
on_reboot = "restart"
on_crash = "restart"
vfb = [ "type=vnc,vncunused=1" ]
disk = [ "phy:/dev/Vol_LVM/tiagoteste2,xvda,w" ]
vif = [ "mac=00:16:3e:dd:ff:dc,bridge=xenbr0" ]
On Thu, 2008-06-19 at 11:59 -0700, Susan Baur wrote:
> I have a fresh install of RHEL 5 fully updated with the
> virutalization software installed. I've gotten xen started and Dom0
> appears to be running correctly. However, whenever I attempt to start
> a guest OS, I get error 22, invalid argument. No matter what I
> change, I always get this same error. What am I missing? I google for
> this error and the only suggestions that seem to fix the problem for
> others are "uninstall the redhat kernel and install xen from source
> instead. I've included output from some commands below that I think
> are relevant. Please let me know if any other information would help.
>
>
> [root at myserver /etc/xen]# rpm -qa | grep xen
> xen-libs-3.0.3-64.el5_2.1
> kernel-xen-2.6.18-92.1.1.el5
> kernel-xen-2.6.18-8.el5
>
> [root at myserver /etc/xen]# xm create webapp.cfg
> Using config file "./webapp.cfg".
> Error: (22, 'Invalid argument')
>
> [root at myserver /etc/xen]# xm list
> Name ID Mem(MiB) VCPUs State
> Time(s)
> Domain-0 0 3917 8 r-----
> 29.8
>
> [root@ myserver /etc/xen]# uname -a
> Linux myserver 2.6.18-92.1.1.el5xen #1 SMP Thu May 22 09:31:19 EDT
> 2008 i686 i686 i386 GNU/Linux
>
> [root@ myserver /etc/xen]# cat xend-config.sxp | grep -v ^#
> (xend-unix-server yes)
> (xend-unix-path /var/lib/xend/xend-socket)
> (xend-relocation-hosts-allow '^localhost$ ^localhost\\.localdomain$')
> (network-script network-bridge)
> (vif-script vif-bridge)
> (dom0-min-mem 256)
> (dom0-cpus 0)
> (vncpasswd '')
>
> [root@ myserver /etc/xen]# cat webapp.cfg | grep -v ^#
> kernel = "/boot/vmlinuz-2.6.18-92.1.1.el5xen"
> ramdisk = "/boot/initrd-2.6.18-92.1.1.el5xen.img"
> builder='linux'
> memory = 512
> name = "WebApp"
> uuid = "06ed00fe-1162-4fc4-b5d8-11993ee4a8b9"
> vif = [ '' ]
> disk = [ 'phy:/dev/mapper/VolGroup00-lv_webapp,hda,w' ]
> root = "/dev/hda1 ro"
> extra = "4"
>
>
> [root at myserver /etc/xen]# cat /var/log/xen/xend.log
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] DEBUG (XendDomainInfo:
> 190) XendDomainInfo.create(['vm', ['name', 'WebApp'], ['memory', 512],
> ['vcpus', 1], ['uuid', '06ed00fe-1162-4fc4-b5d8-11993ee4a8b9'],
> ['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.18-92.1.1.el5xen'],
> ['ramdisk', '/boot/initrd-2.6.18-92.1.1.el5xen.img'], ['root', '/dev/
> hda1 ro'], ['args', '4']]], ['device', ['vbd', ['uname', 'phy:/dev/
> mapper/VolGroup00-lv_webapp'], ['dev', 'hda'], ['mode', 'w']]],
> ['device', ['vif']]])
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] DEBUG (XendDomainInfo:
> 296) parseConfig: config is ['vm', ['name', 'WebApp'], ['memory',
> 512], ['vcpus', 1], ['uuid', '06ed00fe-1162-4fc4-b5d8-11993ee4a8b9'],
> ['image', ['linux', ['kernel', '/boot/vmlinuz-2.6.18-92.1.1.el5xen'],
> ['ramdisk', '/boot/initrd-2.6.18-92.1.1.el5xen.img'], ['root', '/dev/
> hda1 ro'], ['args', '4']]], ['device', ['vbd', ['uname', 'phy:/dev/
> mapper/VolGroup00-lv_webapp'], ['dev', 'hda'], ['mode', 'w']]],
> ['device', ['vif']]]
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] DEBUG (XendDomainInfo:
> 397) parseConfig: result is {'shadow_memory': None, 'start_time':
> None, 'uuid': '06ed00fe-1162-4fc4-b5d8-11993ee4a8b9', 'on_crash':
> None, 'on_reboot': None, 'localtime': None, 'image': ['linux',
> ['kernel', '/boot/vmlinuz-2.6.18-92.1.1.el5xen'], ['ramdisk', '/boot/
> initrd-2.6.18-92.1.1.el5xen.img'], ['root', '/dev/hda1 ro'], ['args',
> '4']], 'on_poweroff': None, 'bootloader_args': None, 'cpus': None,
> 'name': 'WebApp', 'backend': [], 'vcpus': 1, 'cpu_weight': None,
> 'features': None, 'vcpu_avail': None, 'memory': 512, 'device':
> [('vbd', ['vbd', ['uname', 'phy:/dev/mapper/VolGroup00-lv_webapp'],
> ['dev', 'hda'], ['mode', 'w']]), ('vif', ['vif'])], 'bootloader':
> None, 'cpu': None, 'maxmem': None}
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] DEBUG (XendDomainInfo:
> 1264) XendDomainInfo.construct: None
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] ERROR (XendDomainInfo:
> 202) Domain construction failed
> Traceback (most recent call last):
> File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 194, in create
> vm.construct()
> File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 1268, in construct
> handle = uuid.fromString(self.info['uuid']))
> Error: (22, 'Invalid argument')
> [2008-06-19 11:55:06 xend.XendDomainInfo 3470] DEBUG (XendDomainInfo:
> 1463) XendDomainInfo.destroy: domid=None
> [2008-06-19 11:55:06 xend 3470] ERROR (xmlrpclib2:184) (22, 'Invalid
> argument')
> Traceback (most recent call last):
> File "/usr/lib/python2.4/site-packages/xen/util/xmlrpclib2.py",
> line 162, in _marshaled_dispatch
> response = self._dispatch(method, params)
> File "/usr/lib/python2.4/SimpleXMLRPCServer.py", line 406, in
> _dispatch
> return func(*params)
> File "/usr/lib/python2.4/site-packages/xen/xend/server/
> XMLRPCServer.py", line 64, in domain_create
> info = XendDomain.instance().domain_create(config)
> File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py",
> line 228, in domain_create
> dominfo = XendDomainInfo.create(config)
> File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 194, in create
> vm.construct()
> File "/usr/lib/python2.4/site-packages/xen/xend/XendDomainInfo.py",
> line 1268, in construct
> handle = uuid.fromString(self.info['uuid']))
> Error: (22, 'Invalid argument')
>
> Thanks,
> --
> Susan Baur
> System Administrator
> CSU Center for Distributed Learning
> 707-664-4408
> susan at cdl.edu
>
>
> --
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--
Tiago Cruz
http://everlinux.com
Linux User #282636
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