Your message dated Tue, 06 Sep 2022 13:49:34 +0000 with message-id <[email protected]> and subject line Bug#1019035: fixed in systemd-cron 1.15.19-2 has caused the Debian Bug report #1019035, regarding systemd-cron: prerm fails in unbooted systems to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 1019035: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1019035 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: systemd-cron Version: 1.15.19-1 Severity: minor Tags: patch The package fails to remove when the system is not booted. I think this is a bug; I think any package should be removable, regardless of the boot status of the system. #v+ Spawning container 220903 on /backup/220903. Press ^] three times within 1s to kill container. root@220903:~# apt remove systemd-cron Reading package lists... Done Building dependency tree... Done Reading state information... Done The following packages will be REMOVED: cron-daemon-common* systemd-cron* 0 upgraded, 0 newly installed, 2 to remove and 1 not upgraded. After this operation, 211 kB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 58695 files and directories currently installed.) Removing systemd-cron (1.15.19-1) ... System has not been booted with systemd as init system (PID 1). Can't operate. Failed to connect to bus: Host is down dpkg: error processing package systemd-cron (--remove): installed systemd-cron package pre-removal script subprocess returned error exit status 1 dpkg: too many errors, stopping Errors were encountered while processing: systemd-cron Processing was halted because there were too many errors. E: Sub-process /usr/bin/dpkg returned an error code (1) #v- Now as you can see in the above reproduction transcript that when I experienced the error I was nspawn'ed into a copy of the live system. This was to perform some "trial surgery" on the copy without fear of breaking the real one. But please consider also the case of performing maintenance in rescue or emergency mode. I think packages should remain removable even in such instances. The fix is simple: do not call deb-systemd-invoke without first checking for /run/systemd/system. This allows the package to be removed as expected. It is worth noting the automatically added debhelper section has the same check. #v+ --- prerm.orig 2022-07-16 20:42:24.000000000 +0100 +++ prerm 2022-09-03 10:06:10.254464031 +0100 @@ -1,7 +1,7 @@ #!/bin/sh set -e -if [ "$1" = "remove" ]; then +if [ "$1" = "remove" ] && [ -d /run/systemd/system ]; then deb-systemd-invoke stop cron-update.path fi #v- Thus, the package may now be removed as expected. #v+ root@220903:~# apt remove systemd-cron Reading package lists... Done Building dependency tree... Done Reading state information... Done The following packages will be REMOVED: cron-daemon-common* systemd-cron* 0 upgraded, 0 newly installed, 2 to remove and 1 not upgraded. After this operation, 211 kB disk space will be freed. Do you want to continue? [Y/n] (Reading database ... 58695 files and directories currently installed.) Removing systemd-cron (1.15.19-1) ... Removing cron-daemon-common (3.0pl1-149) ... Processing triggers for man-db (2.10.2-2) ... (Reading database ... 58652 files and directories currently installed.) Purging configuration files for systemd-cron (1.15.19-1) ... Purging configuration files for cron-daemon-common (3.0pl1-149) ... #v- Thank you in advance for your consideration. I hope you will agree this is a bug and apply the (trivial) patch, not send me away with an admonishment that this is user error. :) -- https://rjy.org.uk/--- prerm.orig 2022-07-16 20:42:24.000000000 +0100 +++ prerm 2022-09-03 10:06:10.254464031 +0100 @@ -1,7 +1,7 @@ #!/bin/sh set -e -if [ "$1" = "remove" ]; then +if [ "$1" = "remove" ] && [ -d /run/systemd/system ]; then deb-systemd-invoke stop cron-update.path fi
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--- Begin Message ---Source: systemd-cron Source-Version: 1.15.19-2 Done: Alexandre Detiste <[email protected]> We believe that the bug you reported is fixed in the latest version of systemd-cron, which is due to be installed in the Debian FTP archive. A summary of the changes between this version and the previous one is attached. Thank you for reporting the bug, which will now be closed. If you have further comments please address them to [email protected], and the maintainer will reopen the bug report if appropriate. Debian distribution maintenance software pp. Alexandre Detiste <[email protected]> (supplier of updated systemd-cron package) (This message was generated automatically at their request; if you believe that there is a problem with it please contact the archive administrators by mailing [email protected]) -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Format: 1.8 Date: Tue, 06 Sep 2022 15:36:20 +0200 Source: systemd-cron Architecture: source Version: 1.15.19-2 Distribution: unstable Urgency: low Maintainer: Debian Systemd Maintainers <[email protected]> Changed-By: Alexandre Detiste <[email protected]> Closes: 1019035 Changes: systemd-cron (1.15.19-2) unstable; urgency=low . * Enable removal in an unbooted filesystem (Closes: #1019035). Thanks RjY. Checksums-Sha1: af5eb09383934b8f65f1d0bbe6a9ee632a7d8d20 2035 systemd-cron_1.15.19-2.dsc 928eb732906c8a9062d10b74de8602e03d63422f 7244 systemd-cron_1.15.19-2.debian.tar.xz d345a3626220446553a76e8086f5a96164b4c9b4 7149 systemd-cron_1.15.19-2_source.buildinfo Checksums-Sha256: d5030f33686fc97cf902f3819e41695f3b24a74f889f0bb19f3e8d679bbd8ddc 2035 systemd-cron_1.15.19-2.dsc d512a0cc7584a84b119f89d2f9b75b9533ebf3f3a7fd974762e74526553f7a25 7244 systemd-cron_1.15.19-2.debian.tar.xz 78c8166387e742d2addbc81cbb5ca01e6132f4b3e8d0d8dd6936c165b3d8d3a3 7149 systemd-cron_1.15.19-2_source.buildinfo Files: 20db4ce75a2f2c447b4811ccce0dba69 2035 admin optional systemd-cron_1.15.19-2.dsc 49b14d872babe077edf7b9ff5a12cd3b 7244 admin optional systemd-cron_1.15.19-2.debian.tar.xz 32b3eb4985c7575bc596a9e03ac0fb5f 7149 admin optional systemd-cron_1.15.19-2_source.buildinfo -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEj23hBDd/OxHnQXSHMfMURUShdBoFAmMXTQoACgkQMfMURUSh dBrdpg/+I3LmkpXLR1ZX63Ud9N2S+fazBmIikOyk/FSiMJITHlJwRLpAFZ+tKVK/ lfFOtX6wXPAnKAWg5qPn2kLKjZtXxeX3OUPGlSRkI6L8vJRRGtcuUx2YUT3TYwvV XZDppY/oEewjcMJ5k0LPhMWKjLbgdBn0C1zwBPZE9CZ7nNrGakYw6aXuIGZd0ArY NTga7JM7qpDB8vA0ZM8FluVVAAwtTA2RLvsHMOFggYHZUe+Ia3DBu/c6Wz8osUQ3 Q6qkzURVoCx5bUaZJdLrxK850jBGJw4jqD3SlAn2pGi63AZm4oEKa4Aw42oWTSyY 5+zaGZF36Pm/6vbEuyOFbVmLZSutat40oJU079mcva8pwT2yZBrUORi5nwvYQKh5 LA8eVTY55CZZ0qS6+1yiiE5zX/Jiqr6pwKZikanCsB/xWXpstxBY1J5JwJVQev+a JoPvR5htT6d58oa3zTZROCnziEi+qFOoFRDLzaf/cQRz9mMIvsOriqsBaTeBel31 oSaD3s47H32H2RqdtHWm2a55o8T3YUSYVhjVHviCeNm5o7DzyMy8aD/bUuWrjmAg 9gjkwM9vSlXZEOrXbGhbcjdK7eJD7oijX8o5CmNxLO6Auxrx8Xw6A4EOXwEGYTkW CR/MGdSYcJzAWR+ushAXblZetfJQjwnN2ZOAO2UPn8DdN/D8BeE= =9a71 -----END PGP SIGNATURE-----
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