ubuntu one 11.10 lost all passwords

I lost all my passwords...and I wanted to update to a later Ubunto os.
Is there anything I can do???would there be a way to uninstall or format the
HD????

thanks....pupuli
pupuliAsked:
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pupuliConnect With a Mentor Author Commented:
To technodweeb....I went to this site....http://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password....On booting up I then pressed Left Shift when the
Bios came up & scrolled down to [root]. After pressing enter I then got this...
root@dell4100:~#
I then typed in [mount -rw -o remount /] pressed enter and got this.......

[901.684401] Ext4-fs (sda1): remounted. OPTS: errors=remount -ro............
when I hit enter it then went back to [root@dell4100:~#] again.

I am not able to type in the rest of the commands needed.

what am I doing wrong??

thank poupuli
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Gregory MillerGeneral ManagerCommented:
You can always boot to a new CD/DVD and just rebuild the disks with a new OS... OR... You can use the following guide to reset your lost password:
http://askubuntu.com/questions/24006/how-do-i-reset-a-lost-administrative-password
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pupuliAuthor Commented:
problem solved
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pupuliAuthor Commented:
I left a note, but got no comment...B
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