I decided to "scratch my own itch" and submitted a PR upstream. https://github.com/shadow-maint/shadow/issues/219
** Bug watch added: github.com/shadow-maint/shadow/issues #219 https://github.com/shadow-maint/shadow/issues/219 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to shadow in Ubuntu. https://bugs.launchpad.net/bugs/1822501 Title: chpasswd mishandles --root option Status in shadow package in Ubuntu: New Bug description: I did echo root:secret | chpasswd --root=/mnt/img I expected the password to be changed on the mounted filesystem at /mnt/img Instead, it changed the password on the host filesystem. Although the chpasswd(1) manual page does not list --root=CHROOT_DIR as valid syntax, it is common for programs to accept both --arg param and --arg=param as valid syntax (as per gnu getopt_long). At the very least, chpasswd should fail with an error report if unacceptable option syntax is used, rather than ignoring it. passwd 1:4.5-1ubuntu1 on Ubuntu 18.04.2 LTS (though bug tracker seems to think this does not exist in Ubuntu) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1822501/+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
