Comment 2 for bug 1990525

Thank you for your bug report. Please run APT_EDSP_DUMP_FILENAME=/tmp/lp1990525.edsp apt dist-upgrade --solver dump and attach /tmp/lp1990525.edsp to the bug (if that works).

If that does not work, please pass

-o Debug::pkgDepCache::Marker=1
-o Debug::pkgDepCache::AutoInstall=1
-o Debug::pkgProblemResolver=1

to the dist-upgrade and attach the output, and optimally also a tarball of /etc/apt /var/lib/apt/lists /var/lib/dpkg/status, e.g.

tar cJf lp1990525.tar.xz /etc/apt /var/lib/apt/lists /var/lib/dpkg/status

and attach the resulting tarball ` lp1990525.tar.xz`.

Also my hunch: Try passing -o APT::Get::Phase-Policy=1 to dist-upgrade and see if that works. This might be a regression from the new phaser (sigh).