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: initramfs-tools (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to initramfs-tools in Ubuntu. https://bugs.launchpad.net/bugs/1390259 Title: failure installing Utopic package initramfs-tools 0.103ubuntu8 [modified: usr/sbin/update-initramfs] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 Status in “initramfs-tools” package in Ubuntu: Invalid Bug description: utopic installation image downloaded 2014-NOV-6 failed to install ProblemType: Package DistroRelease: Ubuntu 14.10 Package: initramfs-tools 0.103ubuntu8 [modified: usr/sbin/update-initramfs] ProcVersionSignature: Ubuntu 3.16.0-23.31-generic 3.16.4 Uname: Linux 3.16.0-23-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 CasperVersion: 1.345 Date: Thu Nov 6 16:05:44 2014 ErrorMessage: subprocess installed post-installation script returned error exit status 1 LiveMediaBuild: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) PackageArchitecture: all SourcePackage: initramfs-tools Title: package initramfs-tools 0.103ubuntu8 [modified: usr/sbin/update-initramfs] failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/initramfs-tools/+bug/1390259/+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