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When I open sortware update application I am not seeing any notification about a new release. So I tried to manually upgrade by running

sudo apt-get update
sudo do-release-upgrade

and I am getting this error:

Checking for a new Ubuntu release
Traceback (most recent call last):
File "/usr/bin/do-release-upgrade", line 145, in <module>
fetcher.run_options += ["--mode=%s" % options.mode,
AttributeError: type object 'DistUpgradeFetcherCore' has no attribute 'run_options'

How do I upgrade to 13.04?

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1 Answer 1

It's a known and solved bug, reported here:

You should now be able to upgrade by running:

sudo apt-get update
sudo apt-get upgrade
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Is there anything affected users can do to resolve the problem? Does it just work now? – djeikyb Jun 11 '13 at 6:52
It should work after running sudo apt-get update && sudo apt-get upgrade – grimpitch Jun 17 '13 at 4:45

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