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How do I remove old kernel versions?
The procedure to delete all unused old kernels on Ubuntu Linux version 18.04 and 20.04 LTS is as follows:
- First, boot into a new kernel.
- List all other older kernel using the dpkg command.
- Note down system disk space usage by running the df -H command.
- Delete all unused old kernels, run: sudo apt –purge autoremove.
How do I uninstall a newly installed kernel?
These steps are generally work for me, first make sure you boot into the desired version of the kernel you would want to remove:
- rm /boot/{config-,initrd. img-,System. map-,vmlinuz-}`uname -r`
- rm -rf /lib/modules/`uname -r`
- sudo update-grub.
- reboot – this should not reboot you back to the previous version of the kernel.
How do I uninstall kernel modules?
To unload a kernel module, we use the rmmod (remove module) command. The following example will unload or remove the speedstep-lib. ko module.
How do I force remove a kernel module?
You can use the -f option to force module removal even if the module is marked as being in use. Note that this option has no effect unless the CONFIG_MODULE_FORCE_UNLOAD kernel option was set when the kernel was compiled.
Is there a way to remove old kernels from Linux?
By default, modern Linux versions keep the current kernel, plus one older version. However, in some instances, Linux doesn’t remove old versions of the kernel. One common problem of having old kernels is having an extensive list of bootable kernels on the GRUB (boot) menu.
How to check the version of the Linux kernel?
Check Linux Kernel Version by tying the following command: I have a total of three different kernels installed. To remove kernel-smp-2.6.9-42.EL type the rpm command: Please note that you also need to remove kernel-headers, kernel-core-VERSION, and kernel-modules-VERSION packages too.
How to delete or remove kernel-nixcraft in Linux?
For instance, here are packages releated to Linux kernel 5.4.0-25 on my Ubuntu Linux 20.04 LTS desktop: If you have a custom compiled Linux kernel running, you need to remove the following files/dirs: Update grub configuration file /etc/grub.conf or /boot/grub/menu.lst to point to correct kernel version.
How do I remove old kernel versions to clean up the boot menu?
Ubuntu-Tweak will be available under Applications > System Tools. Remove Older Kernel Entries Select “Package Cleaner” on the left and “Clean Kernel” from the right panel. Press the “Unlock” button at the lower right, enter your password. Select from the displayed list the kernel images and headers you wish to remove.