The minimal change is probably moving update-alternatives --quiet --remove pager /bin/less
from postinst to preinst. The pager alternative will fallback to 'more' at least until the new alternative is set up. Strictly speaking it is probably the most correct thing to do, as 'pager' is never left wrongly configured. However there are several packages calling `update-alternatives --install` from preinst [1]. That's probably OK too. [1] https://codesearch.debian.net/search?q=path%3Adebian%2Fpreinst +update-alternatives&literal=1 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to less in Ubuntu. https://bugs.launchpad.net/bugs/1874953 Title: dpkg: conffile difference visualizer subprocess returned error exit status 127 Status in dpkg package in Ubuntu: Triaged Status in less package in Ubuntu: In Progress Status in smartmontools package in Ubuntu: Invalid Status in dpkg source package in Focal: New Status in less source package in Focal: Triaged Status in smartmontools source package in Focal: New Status in dpkg source package in Groovy: Triaged Status in less source package in Groovy: In Progress Status in smartmontools source package in Groovy: Invalid Status in dpkg package in Debian: New Bug description: Issue occurred on upgrade from 19.10 to 20.04 ProblemType: Package DistroRelease: Ubuntu 20.04 Package: smartmontools 7.1-1build1 ProcVersionSignature: Ubuntu 5.3.0-46.38-generic 5.3.18 Uname: Linux 5.3.0-46-generic x86_64 ApportVersion: 2.20.11-0ubuntu27 Architecture: amd64 CasperMD5CheckResult: skip Date: Fri Apr 24 21:33:08 2020 ErrorMessage: conffile difference visualizer subprocess returned error exit status 127 InstallationDate: Installed on 2011-06-18 (3233 days ago) InstallationMedia: Ubuntu-Server 11.04 "Natty Narwhal" - Release amd64 (20110426) Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2 PythonDetails: /usr/bin/python2.7, Python 2.7.18rc1, python-is-python2, 2.7.17-4 RelatedPackageVersions: dpkg 1.19.7ubuntu3 apt 2.0.2 SourcePackage: smartmontools Title: package smartmontools 7.1-1build1 failed to install/upgrade: conffile difference visualizer subprocess returned error exit status 127 UpgradeStatus: Upgraded to focal on 2020-04-25 (0 days ago) mtime.conffile..etc.default.smartmontools: 2017-12-08T19:12:02.064375 mtime.conffile..etc.smartd.conf: 2017-12-08T20:27:28.727282 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dpkg/+bug/1874953/+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
