Just thinking out loud here, but I think Zika may have the most sensible
and certainly simplest solution. We already warn that we're disabling
PPA's so maybe we could warn in a very prominent manner (bold font) that
the user would be wise to actually purge PPA's. I need to perform a few
upgrades
** Changed in: ubuntu-release-upgrader (Ubuntu)
Importance: Undecided => Wishlist
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https://bugs.launchpad.net/bugs/1602052
Title:
ubuntu-release-upgrader should offer to actually
ppa-purge is in universe so this would need a MIR if it's decided to use
this feature.
https://wiki.ubuntu.com/MainInclusionProcess
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https://bugs.launchpad.net/bugs/1602052
Title:
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: ubuntu-release-upgrader (Ubuntu)
Status: New => Confirmed
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Support for stop/pause and instruction to user how to purge given a list
of PPA's to be offered...
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https://bugs.launchpad.net/bugs/1602052
Title:
ubuntu-release-upgrader should offer