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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?

Community
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Sanghyuk Jung
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2 Answers2

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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.

Alvar
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  • I tried, but got same result. – Sanghyuk Jung May 16 '12 at 11:47
  • @SanghyukJung what did you try? what exactly did you do? :) – Alvar May 16 '12 at 15:56
  • Why fresh install 11.10 only to upgrade?? Just do a fresh install of 12.04. – amc May 16 '12 at 16:27
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    @amc it's not a fresh install it's an upgrade via live-cd! – Alvar May 16 '12 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 '12 at 17:31
  • @Nirmik I've never heard that before. Can you confirm it in any way possible? – Alvar May 16 '12 at 17:36
  • Well i dint get any such statment as to it cannot be done but from the ubuntu community update notes it seems you are correct.. :) – Nirmik May 16 '12 at 18:17
  • @Alvar I tried online update from 11.10 to 12.04. It was failed yesterday, but it works now. I guess there are temporarily problems in accessing http://kr.archive.ubuntu.com/ubuntu/pool/main/t/ttf-alee/ttf-alee_12+nmu1ubuntu1_all.deb. – Sanghyuk Jung May 17 '12 at 02:03
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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.

Sanghyuk Jung
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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 '12 at 16:35