I found that update-manager causes such wrong cache generation. If it fetches updated information about packages during "Checking for updates..." it will generate wrong cache and "apt show" will not display translated descriptions.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to apt in Ubuntu. https://bugs.launchpad.net/bugs/1907850 Title: Cache not generated for all translations Status in apt package in Ubuntu: Confirmed Bug description: [Impact] In bug 1161743 we discovered that if a system is configured with multiple locales, only the locales of the user who generated the apt-cache will be available for translated descriptions. [Test case] # apt install locales-all # get the locale # export LANG=sv_SE.UTF-8 # locale LANG=sv_SE.UTF-8 LANGUAGE= LC_CTYPE="sv_SE.UTF-8" LC_NUMERIC="sv_SE.UTF-8" LC_TIME="sv_SE.UTF-8" LC_COLLATE="sv_SE.UTF-8" LC_MONETARY="sv_SE.UTF-8" LC_MESSAGES="sv_SE.UTF-8" LC_PAPER="sv_SE.UTF-8" LC_NAME="sv_SE.UTF-8" LC_ADDRESS="sv_SE.UTF-8" LC_TELEPHONE="sv_SE.UTF-8" LC_MEASUREMENT="sv_SE.UTF-8" LC_IDENTIFICATION="sv_SE.UTF-8" LC_ALL= # apt update # apt-cache show tasksel | grep Desc Description-sv: tool for selecting tasks for installation on Debian systems Description-md5: cbbb747708986d11ea77c80b9b038fec # apt-cache showpkg tasksel Package: tasksel Versions: 3.34ubuntu16 (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_binary-amd64_Packages) Description Language: File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_binary-amd64_Packages MD5: cbbb747708986d11ea77c80b9b038fec Description Language: sv File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_i18n_Translation-sv MD5: cbbb747708986d11ea77c80b9b038fec Description Language: en File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_i18n_Translation-en MD5: cbbb747708986d11ea77c80b9b038fec [...] So far so good, but now assume the root user actually has C configured as locale, and e.g. runs apt-cache show (or apt-daily.service does an update): root@g:~# rm /var/cache/apt/*.bin root@g:~# LANG=C apt-cache show tasksel [...] Description-en: tool for selecting tasks for installation on Debian systems This package provides 'tasksel', a simple interface for users who want to configure their system to perform a specific task. root@g:~# apt-cache showpkg tasksel Package: tasksel Versions: 3.34ubuntu16 (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_binary-amd64_Packages) Description Language: File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_binary-amd64_Packages MD5: cbbb747708986d11ea77c80b9b038fec Description Language: en File: /var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_groovy_main_i18n_Translation-en MD5: cbbb747708986d11ea77c80b9b038fec This should show the sv locale as well given that it's still around (also we are still running with LANG=sv_SE.UTF-8), but it only generated the cache with the english language description in here. [Where problems could occur] Unknown so far, we've not investigated the cause or solution yet. [Other Info] N/A To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt/+bug/1907850/+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
