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[quote]"microcode device doesn't exist?"[/quote] Try grepping for 'microcode' in /var/log/messages, try dmesg | grep microcode, either or both may give you the exact text. chkconfig --list | grep microcode may also give you a hit, if yes, the problem is easy to cure: turn off the service (man chkconfig). If these don't give hits, then it's time to build a kernel for