Hey, pre-fixed user ids would be an anti-pattern and would only work if debian would do it. If you need files to be owned by a specific user you chown and possibly chmod them in postinst. Using the name and not an id. You create that user in case it is not already there. https://github.com/ilbers/isar/blob/master/doc/user_manual.md#home-directory-contents-prefilling and here the example postinst https://github.com/ilbers/isar/blob/master/meta-isar/recipes-app/example-raw/files/postinst This is also how debian does things. i.e. when a webserver needs the user "www", all web-server packages would create that user if not there, and chown/chmod based on the name. I think every file in a debian package will always belong to root:root, and deviations need to be chowned in postinst. Henning Am Wed, 1 Sep 2021 12:04:57 +0000 schrieb "Schultschik, Sven" : > Hi ISAR users, > > > > I’m currently thinking about to freeze the users and group ids. > > > > I have different ideas in mind, but I wanted to ask which would be > the best way with ISAR to generate fixed user and group ids. > > > > Or do you just pre create all needed user accounts before installing > the packages within the build process? > > > > Mit freundlichen Grüßen > Sven Angelo Schultschik > > Siemens AG > Digital Industries > Process Automation > Software House Khe > DI PA DCP R&D 2 > Östliche Rheinbrückenstr. 50 > 76187 Karlsruhe, Deutschland > Tel.: +49 721 6672-0128 > Mobil: +49 162 4975705 > > mailto:sven.schultschik@siemens.com > www.siemens.com > > Siemens Aktiengesellschaft: Vorsitzender des Aufsichtsrats: Jim > Hagemann Snabe; Vorstand: Roland Busch, Vorsitzender; Cedrik Neike, > Matthias Rebellius, Ralf P. Thomas, Judith Wiese; Sitz der > Gesellschaft: Berlin und München, Deutschland; Registergericht: > Berlin-Charlottenburg, HRB 12300, München, HRB 6684; WEEE-Reg.-Nr. DE > 23691322 >