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I am try to upgrade to 12.04 from 11.10 using alternative CD. I run this command

sudo gksu "sh /media/iso/cdromupgrade"

after mounted iso as CD. Its gives this error "An upgrade from 'oneric' to 'precise'"

My error message

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Any reason why you're not using sudo do-release-upgrade? –  SirCharlo Apr 26 '12 at 18:07
    
Yes, this is a very odd way of doing it Arul. Alternatively, you could just boot a LiveCD and upgrade the current install from the Installer. –  Jacob Johan Edwards Apr 26 '12 at 18:09
    
@SirCharlo I tried this command it gives "No new release found" –  Arul Apr 26 '12 at 18:39
    
@JacobJohanEdwards My internet is very slow. That's why using this method –  Arul Apr 26 '12 at 18:40

1 Answer 1

up vote 1 down vote accepted

Check my image carefully. There is a typo in codename oneiric is correct not oneric.

sudo gedit /etc/lsb-release

and correct this error.

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.10
DISTRIB_CODENAME=oneiric
DISTRIB_DESCRIPTION="Ubuntu oneiric"

Now everything is working fine.

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