Earlier this week I upgraded two Pi's from Bookworm to Trixie. The 1st went successfully, the second at first glance too, at second glance .... not so much. There are about 350 packages being held back due to dependency issues.
From what I can tell, it's got to do with the t64-transition. There are packages being held back because the t64 version of a dependency cannot be installed because the non-t64 version cannot be uninstalled. The non-t64 version is a dependency of other packages and those other packages, are dependencies of other packages so if I temporarily remove those, lot's of things will be broken.
One of the 350-ish packages is exim4-base:Are there any troubleshooting guides for t64-transition issues?
From what I can tell, it's got to do with the t64-transition. There are packages being held back because the t64 version of a dependency cannot be installed because the non-t64 version cannot be uninstalled. The non-t64 version is a dependency of other packages and those other packages, are dependencies of other packages so if I temporarily remove those, lot's of things will be broken.
One of the 350-ish packages is exim4-base:
Code:
sudo aptitude install exim4-baseThe following packages will be upgraded: exim4-base{b}1 packages upgraded, 0 newly installed, 0 to remove and 354 not upgraded.Need to get 1,136 kB of archives. After unpacking 56.3 kB will be used.The following packages have unmet dependencies: exim4-base : Depends: libdb5.3t64 but it is not going to be installed Breaks: exim4-daemon-light (< 4.98.2) but 4.96-15+deb12u7 is installed and it is kept backopen: 976; closed: 12960; defer: 37; conflict: 53 (Ctrl-C'd because it kept going and going and going.... )sudo aptitude install libdb5.3t64The following NEW packages will be installed: libdb5.3t64The following packages will be REMOVED: libdb5.3{a}0 packages upgraded, 1 newly installed, 1 to remove and 355 not upgraded.Need to get 575 kB of archives. After unpacking 9,216 B will be used.The following packages have unmet dependencies: libperl5.36 : Depends: libdb5.3 but it is not going to be installed libjack-jackd2-0 : Depends: libdb5.3 but it is not going to be installed libsasl2-modules-db : Depends: libdb5.3 but it is not going to be installed exim4-base : Depends: libdb5.3 but it is not going to be installed libpam-modules : PreDepends: libdb5.3 but it is not going to be installed libaprutil1 : Depends: libdb5.3 but it is not going to be installed libpython3.11-stdlib : Depends: libdb5.3 but it is not going to be installed exim4-daemon-light : Depends: libdb5.3 but it is not going to be installed apt-utils : Depends: libdb5.3 but it is not going to be installed iproute2 : Depends: libdb5.3 but it is not going to be installedopen: 35; closed: 231; defer: 6; conflict: 6 .The following actions will resolve these dependencies: Keep the following packages at their current version:1) libdb5.3 [5.3.28+dfsg2-1 (now)]2) libdb5.3t64 [Not Installed]Statistics: Posted by bartgrefte — Fri Nov 28, 2025 6:40 pm