Package: debian-reference-en Version: 2.69 Severity: normal The manual contains:
2.7.6. Tracking testing with some packages from unstable [...] Set the "/etc/apt/preferences" file as as the following. ^^^^^ First, there's a duplicate "as". Then... Package: * Pin: release a=unstable Pin-Priority: 100 This is incorrect, as not compatible with multiarch. The following should be used for the Package line: Package: *:any See: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881047#10 -- System Information: Debian Release: buster/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-updates'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.13.0-1-amd64 (SMP w/12 CPU cores) Locale: LANG=POSIX, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8), LANGUAGE=POSIX (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages debian-reference-en depends on: ii debian-reference-common 2.69 debian-reference-en recommends no packages. Versions of packages debian-reference-en suggests: pn doc-base <none> -- no debconf information