dracut unable to process initqueue and find lv_root, lv_swap

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http://forums.fedoraforum.org – I am using fedora 17(64 bit). It was working fine. today I changed some bios setting. I disabled AMD K8 Cool 'n' Quiet. After that when I booted it, it showed an error after boot saying " Firmware Bug: powernow-k8: No compatible ACPI _PSS objects found Firmware Bug: powernow-k8: Try with latest bios." " and droped me to dracut shell. After that I revert back the bios setting. But now fedora is not working. After booting, it drop me to dracut shell by saying that " dracut Warning: Unable to process initqueue dracut Warning: /dev/mapper/vg_comp007-lv_root does not exist dra (HowTos)