Comment 286 for bug 173890

 John Vivirito, while doing a clean install is best in certain circumstances
there can be cases where a clean install cannot be performed eg no way to
back up important data.

Also, according to the Ubuntu wiki one should be able upgrade from one LTS
release to next without having to upgrade to each middle release.
https://help.ubuntu.com/community/HardyUpgrades#Upgrade%20from%206.06%20LTS%20to%208.04%20LTS

On Tue, Jul 29, 2008 at 8:42 AM, John Vivirito <email address hidden> wrote:

> Savvas Radević wrote:
> >> In dapper, as of today, the install (still) fails
> >>
> > Are you trying to upgrade the version from dapper-backports?
> > open Applications > Accessories > Terminal and type: apt-cache policy
> > flashplugin-nonfree
> > If you see version 9.0.48.0.0ubuntu11~dapper3, then I think that the
> > new version 9 is not officially supported, since it's in
> > dapper-backports (right?)
> >
> > If I were you, I would be looking to smoothly upgrade to hardy :)
> >
> >
> Please do a clean install instead of upgrade.
> reasons:
> 1. we dont support upgrade when used to skip releases as in dapper
> > hardy isnt supported it would have to be dapper > edgy > feisty
> > gutsy > hardy
> 2. doing the above supported upgrade will only cause you problems
> with unofficial packages and some packages that changed names
> ect...
> 3. Take a lot longer to upgrade
>
> --
> Sincerely Yours,
> John Vivirito
>
> https://launchpad.net/~gnomefreak <https://launchpad.net/%7Egnomefreak>
> https://wiki.ubuntu.com/JohnVivirito
> Linux User# 414246
>
> --
> flashplugin-nonfree fails to install due to md5sum mismatch
> https://bugs.launchpad.net/bugs/173890
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> of a duplicate bug.
>