Forgot user and root password(Fedora 16 Verne)!!

[shanx]

how do I reset both?
Fedora 16 Verne

[jpollard]

Boot into recovery using a CD, and have it mount the target.

You can then change the password by something like:

# chroot /mnt/syslinux
# passwd                          (this will change roots password)
# passwd <username>      (this will change the users password)
# exit

And reboot without the recovery CD.

[weitjong]

Alternatively, if you are able to access grub/grub2 entries then you can reset the root password by booting into single-user mode (runlevel 1). That is, append "1" at then end of the kernel line. After Fedora boots, just use the passwd as suggested jpollard.

p.s. This shows how important to protect the grub entries with password. But then again, if some stranger can access your machine physically then all bets are lost. I hope you are not playing the "stranger" role here .