dracut unable to process initqueue and find lv_root, lv_swap

[chhabi2050]

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
dracut Warning: /dev/vg_comp007/lv_root does not exist
dracut Warning: /dev/vg_comp007/lv_swap does not exist

Dropping to debug shell
dracut:/#
"
here comp007 is my computer name.
What to do now?
Please help

[mikee]

Set teh bios settings back the way they were.

[chhabi2050]

I hav done that too and then anothr problm appeard (mentioned in the earlier post)...