There is no bug in the glibc/expat dependencies here. The libexpat1 in bionic Depends: libc6 (>= 2.25), which is the version that provides this symbol. The problem is that new libexpat1 has been unpacked (but not configured) before the new libc6, so anything which depends on libexpat1 does not have its dependencies satisfied, and the xenial version of gir1.2-ibus-1.0 appears to invoke python3 in its prerm script, which fails.
I'm not sure if it's possible for apt to fix this, or if it would need to be fixed in the gir1.2-ibus-1.0 maintainer script to handle the case where py3clean is executable but fails. Of course this maintainer script is also generated by dh_python3, so fixing it might take a bit of effort. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to ibus in Ubuntu. https://bugs.launchpad.net/bugs/1872016 Title: package gir1.2-ibus-1.0 1.5.17-3ubuntu5.3 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 Status in glibc package in Ubuntu: New Status in ibus package in Ubuntu: New Bug description: Following an upgrade from 16.4 to 18.4 this error occured I can also not see any desktop ProblemType: Package DistroRelease: Ubuntu 18.04 Package: gir1.2-ibus-1.0 1.5.17-3ubuntu5.3 ProcVersionSignature: Ubuntu 4.15.0-96.97-generic 4.15.18 Uname: Linux 4.15.0-96-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia ApportVersion: 2.20.1-0ubuntu2.23 Architecture: amd64 Date: Fri Apr 10 15:37:48 2020 ErrorMessage: subprocess new pre-removal script returned error exit status 1 InstallationDate: Installed on 2017-04-12 (1093 days ago) InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2) RelatedPackageVersions: dpkg 1.18.4ubuntu1.6 apt 1.6.12 SourcePackage: ibus Title: package gir1.2-ibus-1.0 1.5.17-3ubuntu5.3 failed to install/upgrade: subprocess new pre-removal script returned error exit status 1 UpgradeStatus: Upgraded to bionic on 2020-04-10 (0 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/1872016/+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
