Public bug reported:
Updating from Trusty 14.04.
Steps to reproduce:
sudo apt-get install update-manager-core python-apt
sudo sed -i -e 's/Prompt=lts/Prompt=normal/'
/etc/update-manager/release-upgrades
sudo do-release-upgrade -d -f DistUpgradeViewNonInteractive
After while, it shows text that looks like:
b'\r'b'E'b'x'b't'b'r'b'a'b'c'b't'b'i'b'n'b'g'b'. You can extract some meaning
out of it using sed to remove the 'b':
sed -e "s/'b'//g" upgrade.log | sed -e 's/\\r\\n/|/g' | tr '|' '\n'
And I can see that the upgrade is actually interactive:
---
Configuration file 'b"'"b'/etc/upstart-xsessions'b"'"b'
==> Modified (by you or by a script) since installation.
==> Package distributor has shipped an updated version.
What would you like to do about it ? Your options are:
Y or I : install the package maintainer'b"'"b's version
N or O : keep your currently-installed version
D : show the differences between the versions
Z : start a shell to examine the situation
The default action is to keep your current version.
*** upstart-xsessions (Y/I/N/O/D/Z) [default=N] ? '
---
This used to work fine (precise->trusty, saucy->trusty). Is there a new
frontend that replaces DistUpgradeViewNonInteractive?
** Affects: update-manager-core (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "upgrade.log (output of command)"
https://bugs.launchpad.net/bugs/1382707/+attachment/4239281/+files/upgrade.log
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https://bugs.launchpad.net/bugs/1382707
Title:
trusty->utopic non-interactive upgrade outputs garbage, and is
interactive
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