The reported error is fixed by changing the line 814 In file /usr/bin
/unattended-upgrade
subject = _("unattended-upgrades result for '%s': '%s'") % (
host(), res)
into
subject = _("unattended-upgrades result for '{}': '{}'").format(
host(), res)
Unfortunately the % formating is used in many places and changing this
line doesn't definitely fix the problem with unattended-updates.
Worse. Every time unattended-upgrades tries to upgrade packages I end up
with a broken package. I need to use synaptic to fix the broken package.
Not sure if it is properly fixed.
Could someone please fix this issue ? This means people don't get their
packages automatically upgraded. Doing it manually fails because of the
broken package.
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Touch seeded packages, which is subscribed to unattended-upgrades in
Ubuntu.
https://bugs.launchpad.net/bugs/1527106
Title:
Fatal exception failure of unattended-upgrade
Status in unattended-upgrades package in Ubuntu:
Incomplete
Bug description:
Every morning, since I upgraded to Ubuntu 15.10, I get a mail (root)
reporting a fatal exception in unatteded-upgrade containing the
following.
/etc/cron.daily/apt:
Exception: unsupported operand type(s) for %: 'bytes' and 'tuple'
Traceback (most recent call last):
File "/usr/bin/unattended-upgrade", line 1435, in <module>
main(options)
File "/usr/bin/unattended-upgrade", line 1382, in main
pkgs, pkg_install_success, pkgs_kept_back, mem_log, log_content)
File "/usr/bin/unattended-upgrade", line 815, in send_summary_mail
host(), res)
TypeError: unsupported operand type(s) for %: 'bytes' and 'tuple'
As a consequence no automatic updates are performed anymore, including
security updates. For this reason I flag this as a security
vulnerability although it is only indirect.
Manual updates is still working.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/unattended-upgrades/+bug/1527106/+subscriptions
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