Thanks for reporting this bug. Please reply if you have some situation where this might still occur.
** Changed in: shadow (Ubuntu) Status: New => Invalid -- 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/1547907 Title: package login 1:4.1.5.1-1ubuntu9.2 failed to install/upgrade: unable to install new version of `/bin/su': Device or resource busy Status in shadow package in Ubuntu: Invalid Bug description: This happens on every startup ProblemType: Package DistroRelease: Ubuntu 14.04 Package: login 1:4.1.5.1-1ubuntu9.2 ProcVersionSignature: Ubuntu 3.13.0-77.121-generic 3.13.11-ckt32 Uname: Linux 3.13.0-77-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.19 Architecture: amd64 Date: Thu Feb 18 22:39:20 2016 DpkgTerminalLog: Preparing to unpack .../login_1%3a4.1.5.1-1ubuntu9.2_amd64.deb ... Unpacking login (1:4.1.5.1-1ubuntu9.2) over (1:4.1.5.1-1ubuntu9.1) ... DuplicateSignature: package:login:1:4.1.5.1-1ubuntu9.2:unable to install new version of `/bin/su': Device or resource busy ErrorMessage: unable to install new version of `/bin/su': Device or resource busy InstallationDate: Installed on 2015-01-31 (385 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) RelatedPackageVersions: dpkg 1.17.5ubuntu5.5 apt 1.0.1ubuntu2.11 SourcePackage: shadow Title: package login 1:4.1.5.1-1ubuntu9.2 failed to install/upgrade: unable to install new version of `/bin/su': Device or resource busy UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1547907/+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