kernel-remove v1.7 [27 Aug 2024] by Dominic

Description

Command line program to shows installed Linux kernels in a Debian-based distro. It can remove superfluous ones, including related packages, updating grub or grub2 appropriately. Does not require a GUI. You are prompted before any dangerous stuff happens, and it will not allow removal of the kernel that is currently in use, but should still be used with care: once a kernel is gone, it's gone!

Tested under Ubuntu 10.04 to 22.04. May not work under Lubuntu (because kernel packages are differently named).

Usage

kernel-remove.sh [options] kernelnumbertoremove-filter

Examples

./kernel-remove.sh # list kernel packages and exit
./kernel-remove.sh 2.6.32-24 # remove 2.6.32-24 kernel
./kernel-remove.sh 2.6.32 # remove all 2.6.32-* kernels

Options

-h show this help and exit
-l show changelog and exit
-o remove all kernels older than the active kernel

License

Copyright © 2024 Dominic Raferd. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at https://www.apache.org/licenses/LICENSE-2.0. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Changelog

1.7 [27 Aug 2024] - allow removal of specified subdirectories of /lib/modules - which can be left behind after matching kernels are removed by apt
1.6 [17 Nov 2022] - conform (where appropriate) with shellcheck
1.5 [23 Mar 2022] - also remove any leftover directory/ies in /lib/modules
1.4 [12 May 2015] - allow deletion of any kernel series
1.3 [11 Dec 2014] - add -o option (new different code)

Download kernel-remove.sh

Donation

I have provided this software free gratis and for nothing. If you would like to thank me with a contribution, please let me know and I will send you a link. Thank you!

My Other Sites

TimeDicer - Onsite/offsite data backup for Windows (uses rdiff-backup)
Finding a 4D Backup Solution
Web Scraping How To - extracting data from web sites

My Programs

Here is a selection of some (other) programs I have written, most of which run under GNU/Linux from the command line (CLI), are freely available and can be obtained by clicking on the links. Dependencies are shown and while in most cases written and tested on an x86-based Linux server, they should run on a Raspberry Pi, and many can run under Windows using Windows Subsystem for Linux (WSL) or Cygwin. Email me if you have problems or questions, or if you think I could help with a programming requirement.

Backup Utilities

rdiff-backup-regress - GNU/Linux script to regress an rdiff-backup archive. [ GNU/Linux: 2012-24 ]

Debian/Ubuntu kernel and LVM Utilities

lvm-usage - GNU/Linux script to show available disk space and how it is used; run as cron job to warn if usage is above a set percentage. Provides additional information if LVM is in use. [ GNU/Linux: 2012-24 ]
lvm-delete-snapshot - GNU/Linux script to remove LVM snapshot that has been left over by another process. [ GNU/Linux: 2012-21 ]
netnames - GNU/Linux script shows current name, biosdevname and 'predictable name' of network device - helps with network device name scheme migration. [ GNU/Linux-Debian/Ubuntu: 2020-20 ]
lv-convert2cache - GNU/Linux script to convert an existing LV into a cache LV using a smaller faster device as a cache. [ GNU/Linux: 2022-24 ]

Miscellaneous Programs

sleepwalker - Windows© program which can be run from a remote machine to 'wake up' a Windows© machine behind a router, wait for it to start and then initiate Remote Desktop session. [MS Windows©: 2008-22]
numliststat - GNU/Linux program giving statistical value(s) for a piped-in list of numbers. [ GNU/Linux: 2022-24 ]
relay-enforcer - GNU/Linux program enabling a postfix-based mail server relaying to Gmail to act on reports from Gmail about blocked emails. [ GNU/Linux: 2016-24 ]
pdf-compress - GNU/Linux program to create smaller b/w pdf file from an original large pdf file, especially when original resulted from scanning. [ GNU/Linux: 2016-24 ]
tiny-device-monitor - GNU/Linux program to test webpages (including password-protected) or machines to check they are live; use as a cron job for your own websites, for hardware presenting a webpage, or for any machines with a presence on your local LAN or on the internet. [ GNU/Linux: 2009-24 ]
form-extractor - GNU/Linux program to extract form tags from a web page or downloaded file. [ GNU/Linux: 2012-24 ]
mythic-dns-sync - GNU/Linux program to update DNS record at mythic-beasts.com to match local external ip. [ GNU/Linux: 2016-23 ]
saynoto0870 - For UK, a GNU/Linux script which performs automated lookup of the www.saynoto0870.com database, finding cheap or free geographic number replacements for expensive non-geographic (087* or 084*) numbers. [ GNU/Linux: 2012-12 ]
bind9-resolved-switch - GNU/Linux program for switching permanently between using bind9 or systemd-resolved as the system DNS resolver. [ GNU/Linux: 2016-24 ]
unlock - GNU/Linux remote program for easy entering of decrypt passphrase on a remote machine which has root dm-crypt+LUKS. [ GNU/Linux: 2017-18 ]
wifi-updown - GNU/Linux program to take down wifi interface if there is a working wired interface (or restore wifi if not). [ GNU/Linux: 2018-23 ]
routefix - GNU/Linux program to restore a default ip traffic route if there is none such (e.g. after running wifi-updown). [ GNU/Linux: 2018-23 ]
dutree - GNU/Linux program to show a tree-style list of files and directories at the specified location which are greater than the specified size (default 1GB). [ GNU/Linux: 2012-24 ]
Rents Program - Residential lettings/landlord front office program, with many special features for UK market [MS Windows©: 1991-2024]

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