36.8. Fully-virtualized 64 bit guest fails to boot

If you have moved the configuration file to a Red Hat Enterprise Linux 5 causing your fully-virtualized guest to fail to boot and present the error, Your CPU does not support long mode. Use a 32 bit distribution. This problem is caused by a missing or incorrect pae setting. Ensure you have an entry “pae=1” in your guest's configuration file.

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