Messed up password

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http://www.unix.com – I am unable to change my password even in root (recovery mode), or to unlock it. I can still access my account, but without password protection. In GUI Administrator account 'disabled' is displayed. This is what I have done so far: In root: Code: # <usermod -U roy> usermod:cannot lock /etc/passwd; try again later ~#<passwd roy> <Enter new Unix password:done> <Retype new Unix password:done> passwd:Authentication token manipulation error passwd: password unchanged <passwd -a -S> roy L 09/05/2012 0 99999 7 -1 <passwd -d roy> passwd:cannot lock /etc/sha (HowTos)