Virtualization Problem Solutions

This section of Virtuatopia is dedicated to providing solutions to common virtualization problems.

• Device not visible in Xen domainU guest when using xm block-attach command to add a disk or CD-ROM/DVD drive
• Xen domainU Guest has an IP address on 192.168.122 subnet instead of the subnet to which the domain0 host belongs
• Ubuntu DomainU Fails to boot with "Error: Device 0 (vif) could not be connected. Could not find bridge, and none was specified".
• Ubuntu Xen Guest (DomU) Hangs after EXT3-fs: mounted filesystem with ordered data mode message
• Ubuntu Xen System Boot Hangs After Setting System Clock Message
• Xen domainU fails to boot with a "Xen Guest OS Fails to Boot with Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)" error message
• A Xen Guest OS fails to boot with a "switchroot: mount failed: No such file or directory error message" error message.
• Xen CentOS/Fedora/Red Hat Guest OS Hangs During Boot
• Xen domainU Boot Fails with Invalid kernel / ERROR: Not a Xen-ELF image Message