You seem to have run out of space on your /boot partition. Please remove some old kernels and run 'sudo apt-get -f install'.
update-initramfs: Generating /boot/initrd.img-4.4.0-57-generic^M ^M gzip: stdout: No space left on device^M E: mkinitramfs failure cpio 141 gzip 1^M update-initramfs: failed for /boot/initrd.img-4.4.0-57-generic with 1.^M dpkg: error processing package initramfs-tools (--configure):^M subprocess installed post-installation script returned error exit status 1^M Processing triggers for ureadahead (0.100.0-19) ...^M Processing triggers for libapache2-mod-php7.0 (7.0.8-0ubuntu0.16.04.3) ...^M Processing triggers for ca-certificates (20160104ubuntu1) ...^M Updating certificates in /etc/ssl/certs...^M 0 added, 0 removed; done.^M Running hooks in /etc/ca-certificates/update.d...^M done.^M Errors were encountered while processing:^M linux-image-extra-4.4.0-57-generic^M linux-image-generic^M linux-generic^M initramfs-tools^M -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1654766 Title: Update failed to 16.04.1 LTS To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1654766/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs