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 resolve your bug please set its status to Invalid. Thanks in advance! ** Changed in: casper (Ubuntu) Status: New => Incomplete ** Tags added: needs-new-casper -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/805973 Title: package initramfs-tools 0.98.1ubuntu6 [modified: usr/sbin/update- initramfs] failed to install/upgrade: subprocess installed post- installation script returned error exit status 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/casper/+bug/805973/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs