check /boot to see what are your old kernels that you're not necessarily using. the system keeps two latest kernels. so if you're upgrading your kernel to 4.13.0-38, you don't need 4.13.0-36 or older anymore( unless you want a specific kernel for testing or something ), so you can delete em.
/boot$[sudo] rm -rf *4.13.0-36 (or older ones, depending on what you have **don't delete the ones you use or need**) after that: sudo apt-get update && sudo apt-get dist-upgrade sudo apt-get auto remove these should do it. please be careful with rm -rf(it can be pretty devastating if you type wrong things in there) -- 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/798414 Title: update-initramfs should produce a more helpful error message when there isn't enough free space Status in initramfs-tools: Confirmed Status in Ubuntu Software Center: Invalid Status in dpkg package in Ubuntu: Invalid Status in initramfs-tools package in Ubuntu: Fix Released Bug description: Binary package hint: initramfs-tools When installing a kernel, /boot may become full during execution of post-installation script typically when update-initramfs is creating or updating an initrd.img file. This is resulting in kernel installation error. For example: Setting up initramfs-tools (0.98.8ubuntu3) ... update-initramfs: deferring update (trigger activated) Processing triggers for initramfs-tools ... update-initramfs: Generating /boot/initrd.img-2.6.38-8-generic gzip: stdout: No space left on device E: mkinitramfs failure cpio 141 gzip 1 update-initramfs: failed for /boot/initrd.img-2.6.38-8-generic dpkg: error processing initramfs-tools (--configure): subprocess installed post-installation script returned error exit status 1 Ideal behavior: Give a more helpful error message when this unfortunate situation occurs so that user can fix the broken system and keep it going. Workaround: As the bug reporting system forwards user to this bug report, such instructions can be given here: https://help.ubuntu.com/community/RemoveOldKernels To manage notifications about this bug go to: https://bugs.launchpad.net/initramfs-tools/+bug/798414/+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