Verified 1.1ubuntu1.18.04.7~16.04.3 on Xenial: root@x-lp-1823872:~# cat acpid.equivs Source: acpid Section: misc Priority: optional Standards-Version: 3.9.2
Package: acpid File: /etc/acpi/events/powerbtn/powerbtn # /etc/acpi/events/powerbtn # This is called when the user presses the power button and calls # /etc/acpi/powerbtn.sh for further processing. . # Optionally you can specify the placeholder %e. It will pass # through the whole kernel event message to the program you've # specified. . # We need to react on "button power.*" and "button/power.*" because # of kernel changes. . event=button[ /]power action=/etc/acpi/powerbtn.sh root@x-lp-1823872:~# equivs-build acpid.equivs ... root@x-lp-1823872:~# dpkg -i acpid_1.0_all.deb dpkg: warning: downgrading acpid from 1:2.0.26-1ubuntu2 to 1.0 (Reading database ... 32148 files and directories currently installed.) Preparing to unpack acpid_1.0_all.deb ... Unpacking acpid (1.0) over (1:2.0.26-1ubuntu2) ... Setting up acpid (1.0) ... Processing triggers for man-db (2.7.5-1) ... root@x-lp-1823872:~# dpkg -l unattended-upgrades | cat Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-===================-==========================-============-=========================================== ii unattended-upgrades 1.1ubuntu1.18.04.7~16.04.2 all automatic installation of security upgrades root@x-lp-1823872:~# unattended-upgrade --dry-run Traceback (most recent call last): File "/usr/bin/unattended-upgrade", line 1998, in <module> sys.exit(main(options)) File "/usr/bin/unattended-upgrade", line 1714, in main if conffile_prompt(item.destfile): File "/usr/bin/unattended-upgrade", line 929, in conffile_prompt with open(prefix + conf_file, 'rb') as fp: IsADirectoryError: [Errno 21] Is a directory: '/etc/acpi/events/powerbtn' root@x-lp-1823872:~# apt install -y -qq unattended-upgrades The following package was automatically installed and is no longer required: libfreetype6 Use 'apt autoremove' to remove it. Suggested packages: bsd-mailx default-mta | mail-transport-agent needrestart The following packages will be upgraded: unattended-upgrades 1 upgraded, 0 newly installed, 0 to remove and 9 not upgraded. Need to get 41.4 kB of archives. After this operation, 8,192 B of additional disk space will be used. Preconfiguring packages ... (Reading database ... 32136 files and directories currently installed.) Preparing to unpack .../unattended-upgrades_1.1ubuntu1.18.04.7~16.04.3_all.deb ... Unpacking unattended-upgrades (1.1ubuntu1.18.04.7~16.04.3) over (1.1ubuntu1.18.04.7~16.04.2) ... Processing triggers for man-db (2.7.5-1) ... Processing triggers for ureadahead (0.100.0-19.1) ... Processing triggers for systemd (229-4ubuntu21.21) ... Setting up unattended-upgrades (1.1ubuntu1.18.04.7~16.04.3) ... root@x-lp-1823872:~# unattended-upgrade --dry-run --verbose Initial blacklisted packages: Initial whitelisted packages: Starting unattended upgrades script Allowed origins are: o=Ubuntu,a=xenial, o=Ubuntu,a=xenial-security, o=UbuntuESM,a=xenial Option --dry-run given, *not* performing real actions Packages that will be upgraded: acpid Writing dpkg log to /var/log/unattended-upgrades/unattended-upgrades-dpkg.log /usr/bin/dpkg --status-fd 9 --unpack --auto-deconfigure /var/cache/apt/archives/acpid_1%3a2.0.26-1ubuntu2_amd64.deb /usr/bin/dpkg --status-fd 11 --configure acpid:amd64 /usr/bin/dpkg --status-fd 13 --configure --pending All upgrades installed # ** Tags removed: verification-needed verification-needed-xenial ** Tags added: verification-done verification-done-xenial -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to unattended-upgrades in Ubuntu. https://bugs.launchpad.net/bugs/1823872 Title: Fixing fsfreeze-hook can break unattended upgrades Status in qemu package in Ubuntu: Invalid Status in unattended-upgrades package in Ubuntu: Fix Released Status in unattended-upgrades source package in Trusty: Confirmed Status in unattended-upgrades source package in Xenial: Fix Committed Status in unattended-upgrades source package in Bionic: Fix Committed Status in unattended-upgrades source package in Cosmic: Fix Committed Status in unattended-upgrades source package in Disco: Fix Committed Bug description: [Impact] * If an update has a new conffile at a path that in a former version was a directory like old: /a/b/c new: a/b Here b is the new file name and was a directory in the old version. Then unattended upgrades breaks on installing such a package. * a recent qemu update has such a case and due to that triggered the issue in >=Bionic * The fix is to harden unattended upgrades to be able to handle the case without aborting. [Test Case] Get a qemu guest e.g. of Bionic before the update to 1:2.11+dfsg-1ubuntu7.12 That can be done with: $ time uvt-simplestreams-libvirt --verbose sync --source http://cloud-images.ubuntu.com/daily arch=amd64 label=daily release=bionic $ uvt-kvm create --password ubuntu bionic-testuu arch=amd64 release=bionic label=daily Log in and apt update & upgrade all packages, then Install the release level qemu in there. $ uvt-kvm ssh bionic-testuu $ sudo apt update $ sudo apt dist-upgrade $ sudo apt install unattended-upgrades $ sudo apt install qemu-guest-agent=1:2.11+dfsg-1ubuntu7 All before was preparation, now force the unattended upgrade to trigger the bug. $ sudo unattended-upgrade -d With the bug you'll find some error like: found pkg: qemu-guest-agent conffile line: /etc/init.d/qemu-guest-agent f61a64ac1e48993023018fd1cff85191 current md5: f61a64ac1e48993023018fd1cff85191 conffile line: /etc/qemu/fsfreeze-hook/fsfreeze-hook 15f6ff42cbc5550a07ee21c2a471d905 /etc/qemu/fsfreeze-hook/fsfreeze-hook not in package conffiles /etc/init.d/qemu-guest-agent /etc/qemu/fsfreeze-hook found conffile /etc/qemu/fsfreeze-hook in new pkg but on dpkg status Traceback (most recent call last): File "/usr/bin/unattended-upgrade", line 2057, in <module> sys.exit(main(options)) File "/usr/bin/unattended-upgrade", line 1773, in main if conffile_prompt(item.destfile): File "/usr/bin/unattended-upgrade", line 988, in conffile_prompt with open(prefix + conf_file, 'rb') as fp: IsADirectoryError: [Errno 21] Is a directory: '/etc/qemu/fsfreeze-hook' [Regression Potential] * The fix is trying to detect moved conffiles by looking for /etc/foo/foo when the new package ships /etc/foo and /etc/foo is not a known conffile and also checking the renames in the opposite direction. The potential regression is breaking the logic for detecting changed conffiles and either holding back a package for no reason or trying to install a package with a modified conffile on the system and aborting the upgrade in the middle due to the appearing conffile prompt. To avoid such regressions the test_conffile.py tests are extended to cover rename scenarios. [Other Info] * n/a --- As reported on https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1820291/comments/20 We fixed an issue and we added workrounds since basic mv_conffile coudn't handle it and did all sort of upgrade tests. That all worked fine and moved the conffile. It was now reported that due to some pre-checks that unattended upgrades might do this might do some checks on its own. Next step: - check unattended upgrades through this change - check if it only affects cases were the former config was modified (minority) or the default file layout (majority) --- original report copied --- just wanted to add: This bug also crashes unattended-upgrade and thus prevents security updates on 18.04: root@mailin1:~# unattended-upgrade Traceback (most recent call last): File "/usr/bin/unattended-upgrade", line 1998, in <module> sys.exit(main(options)) File "/usr/bin/unattended-upgrade", line 1714, in main if conffile_prompt(item.destfile): File "/usr/bin/unattended-upgrade", line 929, in conffile_prompt with open(prefix + conf_file, 'rb') as fp: IsADirectoryError: [Errno 21] Is a directory: '/etc/qemu/fsfreeze-hook' Basically, unattended-upgrade wants to compare old/new conffiles and doesn't like it when the old conffile turns out to be a directory... This prevents security updates to be installed. The unattended-upgrade logs do not contain the trace, only the messages: 2019-04-05 13:24:24,851 INFO Initial blacklisted packages: 2019-04-05 13:24:24,853 INFO Initial whitelisted packages: 2019-04-05 13:24:24,853 INFO Starting unattended upgrades script 2019-04-05 13:24:24,854 INFO Allowed origins are: o=Ubuntu,a=bionic, o=Ubuntu,a=bionic-security, o=UbuntuESM,a=bionic' And that's it. You can't really get out of this without manually running 'apt-get install qemu-guest-agent' because at this point, unattended-upgrade can't update itself anymore. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qemu/+bug/1823872/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp