If you receive an error about deleting unused kernel files on your computer, check out the suggested fixes. First, run them one at a time in a new specific kernel.List all old other kernels with the la dpkg command.Note the disk space usage for the configuration in which the df -H command is run.Purge unused kernels, run sudo apt –purge autoremove.
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How do I remove old kernels from Yum?
With Package-cleanup, a command that can be described as part of the yum-utils package, we can all automatically remove any number of current kernels. For example, if the –oldkernels –count=2 option is implemented with the package purge command line, the command removes the entire kernel, leaving the last three most important current kernel versions installed.
What is the main way to reduce the size of the kernel?
Sometimes the size reduction is achieved by reducing the quantity operations for certain functions (such as, of course, the number of possible exchange zones and/or the number of TTY training structures). Sometimes size reduction is achieved at the cost of removing features or functions ions from the core.
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The benefit of this excellent answer is that Bash is commonly used on Ubuntu without installing third party applications. Kernel users who have not configured or
dpkg can modify this bash script to control the configuration or even need it.This one is based on an answer to Into (how to selectively purge all available old kernels at once). Suggestions
zenity is a convenient graphical terminal interface for processing a single list and selecting elements contained in radio buttons:
As the name suggests, the current kernel you started with cannot be deleted and is not included in the database. The reported size is the amount of
/boot stored in the directory. Your CD has more because the kernel binaries are in other good places. Note dated July 27, 2017 Almost always includedThe directories are
The modification date is determined using the
stat command. On my system, this date often “falls out” every time the kernel is booted from it (how does your company know when a unique kernel version was last booted?) cron runs my pc script. However, on your system, any date corresponds to a kernel dump, not the date your site was last run.
How do I remove old kernels in RHEL 7?
Step One, 1: Make sure you have the old kernel images on this RedHat/CentOS system.Step 2: Install the Yum-utils.3 package:Step Remove obsolete kernels.Step 4: Unwanted Remove dependencies that are no longer needed in the system.
You have the option to look at everything that will also be deleted and see the (slightly misleading) disk space that is supposed to be recovered:
The following packages will always be removed: header-linux-4.7.1-040701* header-linux-4.7.1-040701-general* header-linux-4.7.2-040702* header-linux-4.7.2-040702-general* header-linux-4.7.3-040703* header-linux-4.7.3-040703-general* header-linux-4.8.1-040801* header-linux-4.8.1-040801-general* header-linux-4.8.10-040810* header-linux-4.8.10-040810-general* header-linux-4.8.11-040811* header-linux-4.8.11-040811-general* header-linux-4.8.4-040804* header-linux-4.8.4-040804-general* header-linux-4.8.5-040805* header-linux-4.8.5-040805-general* Linux Image-4.7.1-040701-Generic* Linux Image-4.7.2-040702-general* Linux Image-4.7.3-040703-Shared* Linux Image-4.8.1-040801-Shared* Linux Image-4.8.10-040810-Shared* Linux Image-4.8.11-040811-Shared* Linux Image-4.8.4-040804-Shared* Linux Image-4.8.5-040805-Shared*0 updated, 0 reinstalled, 24 removed and 2 should not be updated.After processing, these 2330 MB of disk space will be permanently freed.Do you want to continue? [We]
Copy this code to help an executable named
#!/bin/bash# NAME: rm-kernels# PATH: /usr/local/bin# DESC: Provide a list of Zenity popcorn kernels to be removed.# DATE: March 10, 2017 28 Updated July 2017# NOTE: The current kernel is not removed.# With ten cores and one SSD, flush the memory cache from the sudo (#) prompt with:# Free number && && echo sync on three > /proc/sys/vm/drop_caches && First free# times for `du` 34 seconds.# small Time For `you` 1 second.# PARM: If parameter a is 1, use the REAL size of the kernel, otherwise use the approximate size.Par# by default `du` is not and the estimated size is generated.# Must run sudoif like this [[ $(id -u)!= 0 ]] then ; --error zenity --text "Simple root access required. Use: sudo rm-kernels" exit 99IfOLDIFS="$IFS"IFS="|"select = ()current_version=$(r-name)for v /boot/vmlinuz*do in if [[ $f == *"$current_version"* Continue; ]]; fi # ignore updated version [[ $f =~ vmlinuz-(.*) ]] V=$BASH_REMATCH #4 example:.9.21-040921-universal # v_main="$v%-*" Example 4:.9. 21-040921 # Kernel size only in /boot/*4.9. 21-040921-general* -ch s=$(du /boot/*-$v* Awk | '/total/print $1') [[if $# -ne 6 ]]; then number Was a parameter passed? in [[ -d "/usr/src/linux-headers-"$v_main ]] . . . then # Kernel header size around /usr/src/*4.9.21-040921* s2=$(du -ch --max-depth=1 /usr/src/*-$v_main* | awk '/total/print $1') different s2="0M" number Linux headers will not be installed If # kernelsClick here to get a complimentary download that will help you clean up your PC.
How do I remove old kernels in Debian?
Step in particular - In starting a new kernel. Boot into the newly installed kernel first. Check this with the command:Step 1.5 below - remove unnecessary abandoned kernel images as well. You can purge kernel images individually using some of the following apt-get commands or the apt-get syntax:
Verwijder Ongebruikte Kernelbestanden
사용하지 않는 커널 파일 제거
Usun Nieuzywane Pliki Jadra
Remover Arquivos Do Kernel Nao Utilizados
Rimuovere I File Del Kernel Inutilizzati
Entfernen Sie Unbenutzte Kernel Dateien
Eliminar Archivos Del Nucleo No Utilizados
Supprimer Les Fichiers De Noyau Inutilises
Udalit Neispolzuemye Fajly Yadra
Ta Bort Oanvanda Karnfiler