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Possible Duplicate:
Can I skip over releases?

I tried to upgrade from 11.04 to 12.04 by Update manager, but failed.

The error message was:

Failed to fetch http://kr.archive.ubuntu.com/ubuntu/pool/main/t/ttf-alee/ttf-alee_12+nmu1ubuntu1_all.deb'

How can I fix it?

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  • Can the person that down voted please add a comment. Thank you.
    – Switchkick
    May 15, 2012 at 21:44
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    @Ants You mustn't add a comment after a down vote. it's optional.
    – Alvar
    May 15, 2012 at 21:45
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    I think if you add a comment it helps the user to refine their question next time. Simply down voting doesn't let the user know what they've done wrong.
    – Switchkick
    May 15, 2012 at 21:49
  • @SanghyukJung If you say 11.04 and mean 11.10 you really deserve a down vote.
    – Alvar
    May 17, 2012 at 6:36

2 Answers 2

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You can't upgrade from 11.04 to 12.04. You must upgrade to 11.10 and then to 12.04. You can only skip upgrades if you upgrade from an LTS (10.04) to a LTS (12.04). You can't skip in-between.

I suggest you download an 11.10 image from here. And then upgrades via a usb-stick (live-cd). and then upgrades to 12.04, via the same method.

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  • I tried, but got same result. May 16, 2012 at 11:47
  • @SanghyukJung what did you try? what exactly did you do? :)
    – Alvar
    May 16, 2012 at 15:56
  • Why fresh install 11.10 only to upgrade?? Just do a fresh install of 12.04.
    – amc
    May 16, 2012 at 16:27
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    @amc it's not a fresh install it's an upgrade via live-cd!
    – Alvar
    May 16, 2012 at 16:47
  • But i think when you use a live cd you can upgrade from 11.04 to 12.04 directly!! The online upgrade needs 11.10! Just confirm once...!
    – Nirmik
    May 16, 2012 at 17:31
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I fixed it.

I guess there was a temporarily problem in accessing http://kr.archive.ubuntu.com/ubuntu/pool/main/t/ttf-alee/ttf-alee_12+nmu1ubuntu1_all.deb

I downloaded 'ttf-alee_12+nmu1ubuntu1_all.deb' from a mirror site and install it manually, then completed the online update.

But now 'ttf-alee_12+nmu1ubuntu1_all.deb' is available on 'kr.archive.ubuntu.com'. I guess there is no problem now.

Thank you for all comments.

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  • you said it was 11.04 to 12.04, which you can't do. But now you say it was 11.10 to 12.04! it's impossible to help you if you don't give us the correct information.
    – Alvar
    May 17, 2012 at 16:35

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