Thank you for taking the time to report this bug and helping to make Ubuntu better. The version of update-initramfs that you likely have installed is unable to work on a persistent usb stick. You can resolve this issue by upgrading the version of casper on your system. This can be done via the commands:
sudo apt-get update; sudo apt-get install casper Then performing the software update or installation that you were originally trying. If this does not resolve your bug please set its status back to New. Thanks in advance! ** Tags added: needs-new-casper ** Changed in: bcmwl (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1545195 Title: package bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6 Status in bcmwl package in Ubuntu: Invalid Bug description: i dont know ProblemType: Package DistroRelease: Ubuntu 14.04 Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1 ProcVersionSignature: Ubuntu 3.19.0-25.26~14.04.1-generic 3.19.8-ckt2 Uname: Linux 3.19.0-25-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.14.1-0ubuntu3.11 Architecture: amd64 CasperVersion: 1.340.2 Date: Sat Feb 13 00:09:01 2016 DpkgTerminalLog: Log started: 2016-02-13 00:06:04 Log ended: 2016-02-13 00:06:28 Log started: 2016-02-13 00:08:04 ErrorMessage: subprocess installed post-installation script returned error exit status 6 LiveMediaBuild: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805) SourcePackage: bcmwl Title: package bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 6 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1545195/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp