Is there a way to remove old kernels?
The apt package manager can automatically remove all old kernels. To do so, run the command: The system scans for unused kernels and displays a summary of the files it wants to delete. It prompts you to confirm your choice to remove old kernels by pressing y and Enter to delete.
How to delete all unused Linux kernels and headers?
Delete all unused old kernels, run: sudo apt –purge autoremove Verify it by running the df -H The above commands only work on newer systems as all old Linux kernels and headers automatically flagged as no more needed, and thus can be purged. Now I have used 6.7G disk space as compared 9.3G before deleting kernels.
How to uninstall old kernels in yum utils?
Using package-cleanup command which is a part of yum-utils package we can uninstall any number of old kernels automatically. As an example using –oldkernels –count=2 option with package-cleanup command the command will remove all unused kernel while keeping last three most recent kernel versions installed.
How to delete old kernels in Ubuntu 18.04 LTS?
The procedure to delete all unused old kernels on Ubuntu Linux version 18.04 and 20.04 LTS is as follows: List all other older kernel using the dpkg command Note down system disk space usage by running the df -H command
How to recover Linux VM from kernel-related boot issues?
To recover the Linux VM on Azure, you must either install a newer kernel or roll back to an earlier version manually by using one of the following repair options.
Is it safe to remove kernels from Ubuntu 18.04?
You should now know several methods to remove old kernels from Ubuntu 19.04, 18.04, & 16.04 or older. Purging kernels can help you recover wasted disk space in linux. It’s also considered a best practice for good system hygiene, to prune out old files and dependencies.
Why does yum update kernel not boot into new kernel?
Also, the file ‘/etc/grub.cfg’ is a symbolic link to ‘/boot/grub2/grub.cfg’ file (in case of EFI based systems /boot/efi/EFI/redhat/grub.cfg). Looking at your problem description I presume that system boots into older kernel without any issues. If this is the case then it could be due to the reason that ‘/etc/grub.cfg’ symbolic link file not there.