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   2  What can you do if you forget your root password? To reset it to a different password, boot into rescue mode or single-user mode, and use the passwd command to reset the root password.
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   4  By booting the system from the Red Hat Enterprise Linux CD-ROM #1.
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   6  Once you have booted using one of the described methods, add the keyword rescue as a kernel parameter. For example, for an x86 system, type the following command at the installation boot prompt:
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   8  linux rescue
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  10  chroot /mnt/sysimage
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  12  passwd
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