You are right, this happens even when deboostrapping Debian. Reported against adduser' in Debian: https://bugs.debian.org/cgi- bin/bugreport.cgi?bug=1012492
** Bug watch added: Debian Bug tracker #1012492 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1012492 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to adduser in Ubuntu. https://bugs.launchpad.net/bugs/1977710 Title: /etc/adduser.conf.dpkg-save created by postinst since 3.121ubuntu1 Status in adduser package in Ubuntu: Incomplete Bug description: Since version 3.121ubuntu1 adduser's postinst script creates /etc/adduser.conf.dpkg-save file on debootstrap's root filesystem, that is, even when /etc/adduser.conf doesn't exist prior to package installation. Because of the change below the postinst script changes packaged /etc/adduser.conf and creates /etc/adduser.conf.dpkg-save as a backup: - Enable private home directories by default (LP: #48734) + Set DIR_MODE=0750 in the default adduser.conf + Change the description and default value to select private home directories by default in debconf template + Change the DIR_MODE when private home directories is configured via debconf from 0751 to 0750 to ensure files are truly private The .dpkg-save file shouldn't be present on debootstrapped system. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/adduser/+bug/1977710/+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
