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I have a experienced a slightly odd behaviuour in the Ubuntu upgrade utility and am lefting wanting to know. Also I am trying to replicate an environment as closely as possible, and upgrading from 12.10 to 13.04 may be relevant.

I downloaded 12.10.4 server, installed it as close to "defaults" as possible, and ran do-release-upgrade -- this bumped me straight up to 13.10, without first trying to move me to 13.04

How do I define a specific release for this process? (id est, where are the configs for do-release-upgrade)

I've only found this post to be vaguely relevant but does not answer my question...

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taifwa
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  • Why do you want to upgrade to 13.04? It's already end-of-life, so it's probably not the best idea. – zymhan Jun 16 '14 at 19:27
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    To replicate a "production" environment. Yes maybe that env should also be upgraded, but baby steps. First I'm trying to replicate my environment as it is, so that I can test my procedures before hosing my live env. – taifwa Jun 16 '14 at 21:10

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the file is in /etc/update-manager/release-upgrades

i assume this happens because 13.04 is already end-of-life and therefor the next supported version is 13.10 though not 100% sure, see wikipedia

change

prompt=normal

or try

do-release-upgrade -d

after the config change.

This seems to be the official solution to upgrade from 12.10 to 13.04

Source: Ubuntu.com

check though which version you get

for completion to know which version is LTS and which is not: 

Ubuntu 12.04 LTS (Precise Pangolin)
Ubuntu 12.10 (Quantal Quetzal)
Ubuntu 13.04 (Raring Ringtail)
Ubuntu 13.10 (Saucy Salamander)
Ubuntu 14.04 LTS (Trusty Tahr)

Source: Wikipedia List of Ubuntu Versions

Dennis Nolte
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  • For some reason the VPS provider was still offering 12.10 a few weeks ago when I created a new account (and I selected it, thinking I was getting 12.04). So I upgraded to 13.04 thinking "18 months support" mixing my distro EOL offerings up... Long story short I did the 12.10->13.04 upgrade when 13.04 was already out of date (just a couple of weeks ago) so I doubt that's the explanation. It may be that I'll simply have to do a backup of everything, ask the provider to reinitialize my host to a vanilla 14.04 and hope everything is resolved that way.. Thanks though! – taifwa Jun 16 '14 at 21:17