Ubuntu installation software Tips boot space is low

The "Gzip:stdout:No space left on device" issue will appear with the sudo apt-get install Gitlab-ci-multi-runner installation application.

Boot files are stored in the system boot files and the kernel of some things, the general space is enough, we all know that the Linux kernel has been updated, with the new, the old kernel is not in use, but the old kernel files are still in the boot, occupy space, updated several times after the boot file will be full, Display boot disk space is low. In order to update the need to remove the unused kernel files, free space.

Look at the old installed kernel (or remote login with Shell) under the terminal:

Dpkg--get-selections| grep Linux

Linux-behind the image is the old kernel. Because I have already deleted the old kernel, so the deinstall is shown later, the install is not deleted.
All we have to do is remove the Linux kernel with the image behind it.

sudo apt-get remove <name>

or use automatic deletion

sudo apt-get autoremove

But the actual operation found that the automatic deletion is not ideal, so I remove the old kernel from the new to the old order, and delete the successful flag is deinstall

Ubuntu installation software Tips boot space is low