Red Hat ENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE Guia de Instalação descarregar pdf (Página 345)

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1 localhost.localdomain localhost

localhost.localdomain. localhost

You receive the following error (in the xen-xend.logfile ):

Bridge xenbr1 does not exist!

This happens when the guest's bridge is incorrectly configured and this forces the Xen hotplug

scripts to timeout. If you move configuration files between hosts, you must ensure that you update the

guest configuration files to reflect network topology and configuration modifications. When you

attempt to start a guest that has an incorrect or non-existent Xen bridge configuration, you will

receive the following errors:

# xm create mySQL01

Using config file " mySQL01"

Going to boot Red Hat Enterprise Linux Server (2.6.18.-1.2747 .el5xen)

kernel: /vmlinuz-2.6.18-12747.el5xen

initrd: /initrd-2.6.18-1.2747.el5xen.img

Error: Device 0 (vif) could not be connected. Hotplug scripts not working.

In addition, the xend.log displays the following errors:

[2006-11-14 15:07:08 xend 3875] DEBUG (DevController:143) Waiting for devices vif

[2006-11-14 15:07:08 xend 3875] DEBUG (DevController:149) Waiting for 0

[2006-11-14 15:07:08 xend 3875] DEBUG (DevController:464) hotplugStatusCallback

/local/domain/0/backend/vif/2/0/hotplug-status

[2006-11-14 15:08:09 xend.XendDomainInfo 3875] DEBUG (XendDomainInfo:1449)

XendDomainInfo.destroy: domid=2

[2006-11-14 15:08:09 xend.XendDomainInfo 3875] DEBUG (XendDomainInfo:1457)

XendDomainInfo.destroyDomain(2)

[2006-11-14 15:07:08 xend 3875] DEBUG (DevController:464) hotplugStatusCallback

/local/domain/0/backend/vif/2/0/hotplug-status

To resolve this problem, open the guest's configuration file found in the /etc/xen directory. For

example, editing the guest mySQL01

# vim /etc/xen/mySQL01

Locate the vif entry. Assuming you are using xenbr0 as the default bridge, the proper entry should

resemble the following:

# vif = ['mac=00:16:3e:49:1d:11, bridge=xenbr0',]

You receive these python deprecation errors:

# xm shutdown win2k3xen12

# xm create win2k3xen12

Using config file "win2k3xen12".

/usr/lib64/python2.4/site-packages/xenxm/opts.py:520: Deprecation Warning:

Non ASCII character '\xc0' in file win2k3xen12 on line 1, but no encoding

⁠Chapt er 35. T roub leshoo t ing Xen

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Red Hat ENTERPRISE LINUX 5 - VIRTUALIZATION GUIDE Guia de Instalação Página 345