[Bug 989018] Re: Update Manager does not offer 10.04 -> 12.04 upgrade

[Daniel Grund]

I found the following that may help people that arrived here at this
"bug":

https://wiki.ubuntu.com/PrecisePangolin/ReleaseNotes/UbuntuDesktop#Upgrading_from_Ubuntu_10.04_LTS_to_Ubuntu_12.04_LTS

This, however, immediately triggers the following questions:

Starting from 10.04, will "update-manager -d" install the same thing as
a fresh install of 12.04?

Will the system then be on a devel release branch? Or will it stay on
the stable release branch? Do such things exist? How to switch between
them?

What's the difference between "update-manager -d" and "do-release-
upgrade -d"?

n.b. Sad that Ubuntu needs fine print, too. Proven, practical, precise
-- and pointless for the 10.04 folks. ;-) !?

** Changed in: update-manager (Ubuntu)
       Status: Incomplete => Invalid

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https://bugs.launchpad.net/bugs/989018

Title:
  Update Manager does not offer 10.04 -> 12.04 upgrade

Status in “update-manager” package in Ubuntu:
  Invalid

Bug description:
  The 12.04 release notes today suggest that it should be possible to
  upgrade from 10.04 to 12.04 desktop version by selecting "Long term
  support releases only" under "Show new distribution releases:" in
  Update Manager and refreshing the package information. However, no
  button offering to launch the upgrade process appears.

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