Wednesday, April 15, 2009

Migrating RedHat from VMware to XenServer

Fixing RedHat virtual machines after migration

After import: RedHat will boot, detect new hardware, and install new device drivers. Nothing else needs to be done.

If VMware Tools was installed within the virtual machine then the following X server error will be seen.

The X Windows server will fail to start due to new video devices being detected. This is because of custom video devices and drivers that depended on the underlying VMware host. The system will prompt the user to repair the X server. If the user accepts the automated repair, X Windows will be functioning properly.


To repair the X Server:

Selecting Yes presents diagnosis screens. Selecting No skips the diagnosis screens and goes straight to repairing XWindows.


Select Yes to begin repair.


Enter the password for the Root user account.

RedHat begins the process of detecting the hardware and devices and modifying the configuration of X windows. A new settings dialog box is presented.


Click OK to accept a known working configuration.


Acknowledge the information box.


Select <Enter> to accept the dialog that the configuration has completed.

At this time X server restarts and you are able to logon to the graphical desktop.

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