Disk Usage Analyzer shows 4.4.0-45 and 4.4.0-47 under /lib/modules, why is that? Is it needed to have two kernels or has the old one stayed after an update? Is it safe to remove the older kernel?
Ubuntu – Why are there two kernels under `/lib/modules` on 16.04 LTS
kernel
Best Answer
It is common to keep one older kernel version around in case the new one breaks.
The previous version is available on grub's
Advanced Options
menu.Kernels that Ubuntu automatically installs can be automatically removed by using:
This removes older kernels (that Ubuntu automatically installed) but keeps the current version and the one before it.
When you manually install kernels (often necessary to get new hardware support or address a certain "glitch" you have) you need to manually remove them.