30.7. Fully-virtualized x86_64 guest fails to boot

30.7. Fully-virtualized x86_64 guest fails to boot

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


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