[Expired for ubuntu-release-upgrader (Ubuntu) because there has been no
activity for 60 days.]
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: Incomplete => Expired
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oibaf PPA is definitely causing problems, so run:
sudo apt-get install ppa-purge
sudo ppa-purge ppa:oibaf/graphics-drivers
You also have a bunch of other PPA's and 3rd party repos (look in
/etc/apt/sources.list.d ).
It would be a good idea to remove/disable those before upgrading, even if they
