This is pertaining Ubuntu 18.04 LTS. I tried to save space by removing unneeded Linux kernel, but looks like it will still install other kernel image that is "Unsigned". Why is this?
Here is the log:
root@ubuntu18:~# apt-get remove linux-image-4.18.0-15-generic Reading package lists... Done Building dependency tree Reading state information... Done The following additional packages will be installed: linux-image-unsigned-4.18.0-15-generic Suggested packages: fdutils linux-hwe-doc-4.18.0 | linux-hwe-source-4.18.0 linux-hwe-tools The following packages will be REMOVED: linux-image-4.18.0-15-generic linux-modules-extra-4.18.0-15-generic The following NEW packages will be installed: linux-image-unsigned-4.18.0-15-generic 0 upgraded, 1 newly installed, 2 to remove and 8 not upgraded. Need to get 8,219 kB of archives. After this operation, 168 MB disk space will be freed. Do you want to continue? [Y/n]
The original Linux kernel version that ships with the distro appears to be version 4.18. The new version that was just installed was 5.0. So I wonder if there is a reason to "preserve" 4.18.