# We see that "4.15.0-34.37" has been installed, and then 2-3 minutes later 'uu' failed to upgrade to "4.15.0-36.39" :
Start-Date: 2018-10-10 10:45:05 Commandline: apt install linux-cloud-tools-common=4.15.0-34.37 Downgrade: linux-cloud-tools-common:amd64 (4.15.0-36.39, 4.15.0-34.37) End-Date: 2018-10-10 10:45:10 Start-Date: 2018-10-10 10:47:54 Commandline: /usr/bin/unattended-upgrade Upgrade: linux-cloud-tools-common:amd64 (4.15.0-34.37, 4.15.0-36.39) Error: Sub-process /usr/bin/dpkg exited unexpectedly End-Date: 2018-10-10 10:52:41 I also found curious the attempt to Downgrade from "4.15.0-36.39" to "4.15.0-34.37". apt/history.log:Commandline: apt install linux-cloud-tools-common=4.15.0-34.37 apt/history.log:Downgrade: linux-cloud-tools-common:amd64 (4.15.0-36.39, 4.15.0-34.37) apt/history.log:Upgrade: linux-cloud-tools-common:amd64 (4.15.0-34.37, 4.15.0-36.39) I don't have enough data to conclude things, but clearly something went wrong. Can you reproduce the issue every time ? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1796376 Title: Bug #1739107 fix causes linux-cloud-tools-common not to be upgradable with unattended-upgrades on shutdown mode Status in linux package in Ubuntu: Confirmed Bug description: Since the following linux-cloud-tools-common package versions : Xenial : 4.4.0-135.161 Bionic : 4.15.0-34.37 the Systemd service unit file for hv-kvp-daemon has been modified with new dependencies that make the package unable to be upgraded with unattended-upgrades on shutdown mode. Unattended-upgrades hangs with the linux-cloud-tools-common package during "Preparing to unpack". The server restarts after the unattended-upgrades service timeout expires. - Package state after reboot : iFR linux-cloud-tools-common 4.15.0-34.37 all Linux kernel version specific cloud tools for version 4.15.0 - Unattended-upgrades dpkg logs : Log started: 2018-10-05 17:59:04 (Reading database ... 52043 files and directories currently installed.) Preparing to unpack .../linux-cloud-tools-common_4.15.0-36.39_all.deb ... Log ended: 2018-10-05 18:00:54 - Impact : The current impact is very important as all security updates are blocked until you manually fix each server with : dpkg --configure -a apt install --only-upgrade linux-cloud-tools-common - Workaround/Fix : As a simple straightforward fix, replacing : Before=shutdown.target cloud-init-local.service walinuxagent.service with : Before=shutdown.target walinuxagent.service makes the package upgradable during shutdown. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1796376/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
