[ckan-dev] How do I upgrade from 2.0 to 2.2

[Hildegard Gerlach]

Hello,

it is not clear to me how I have to upgrade to version 2.2 (using 
Redhat). I was following this page
http://docs.ckan.org/en/latest/upgrade-source.html

If I do

git fetch
git checkout release-v2.2

I get the following error.
error: pathspec 'release-v2.2' did not match any file(s) known to git

What do I have to do ? And what about the extensions I have installed 
(harvest and spatial), do I have to upgrade them as well and how ?

The command git branch gives this:
> (pyenv)[ckan at mtester ckan]$ git branch
> * (no branch)
>   master
> (pyenv)[ckan at mtester ckan]$

Thanks

Hilde