You seem to have run out of disk space, likely in /boot if that is a separate partition.
Examining /etc/kernel/postinst.d. run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-38-generic /boot/vmlinuz-4.4.0-38-generic run-parts: executing /etc/kernel/postinst.d/dkms 4.4.0-38-generic /boot/vmlinuz-4.4.0-38-generic run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-38-generic /boot/vmlinuz-4.4.0-38-generic update-initramfs: Generating /boot/initrd.img-4.4.0-38-generic W: plymouth module (/usr/lib/x86_64-linux-gnu/plymouth//.so) missing, skipping that theme. gzip: stdout: No space left on device E: mkinitramfs failure cpio 141 gzip 1 update-initramfs: failed for /boot/initrd.img-4.4.0-38-generic with 1. run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 1 Please try removing some old kernels and running 'sudo apt-get -f install'. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1640645 Title: subprocess installed post-installation script returned error exit status 2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-release-upgrader/+bug/1640645/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
