Fedora 7 and lv problems

[scott-DPNOqEs/LNQ at public.gmane.org (Scott Ehrlich)]

I have a laptop running FC7 installed out-of-box with /boot as its own 
partition and swap and / under Linux LVM.

I now need to access /etc/passwd to force-change the password to blank to 
log into an account.   Knoppix 5.1.1 can see the lvm via lvdisplay but 
cannot do anything with it.

What CD/DVD can I use/burn than can help me mount the lvm successfully and 
change the /etc/passwd file?

Thanks.

Scott

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