** Tags added: xenial2bionic
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https://bugs.launchpad.net/bugs/1900857
Title:
I tried to update my 16.04 version to 18.04, but this problem occurred
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Thanks for taking the time to report this bug and helping to make Ubuntu
better. We appreciate the difficulties you are facing, but this appears
to be a "regular" (non-security) bug. I have unmarked it as a security
issue since this bug does not show evidence of allowing attackers to
cross