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Determining the corrrect number may be the tricky part. There are also arch-specific kernel-parameters not documented here.( (I will never use grub-customizer again in order to select which one to run.)) ( (Grub-customizer spells Trouble.)) At boot, just ONE of those kernels appears How to get all three to appear (is it possible I am having a dumb moment. 10 Answers Sorted by: 77 The simplest way to display your Grub is to press and hold the SHIFT button while booting. While /etc/grub2.cfg and the files in /etc/grub.d are reserved for automated updates, the file /etc/default/grub is for user customizations. You can, however, make updates to GRUB yourself. Change the line GRUB_DEFAULT=0 which means "boot the first kernel entry in the list" (yes, counting starts with 0, not with 1) to specify the number which would correspond to the position of your 4.4.0 kernel in the Grub menu list. 1 Linux Mint 21 (Cinnamon) I have 3 kernels installed. Change GRUB When you update your Linux system, GRUB is also updated so that when you boot, your computer loads the latest kernel.With root privileges edit the file /etc/default/grub.In case you do not want to uninstall the 4.8.0-xx kernels at this point in time, then there is only the second way: Once the 4.8.0-xx kernels have been uninstalled properly, the Grub menu will start with the 4.4.0-xx kernels.Provided this works correctly, you might decide to uninstall all 4.8.0-xx kernels which are on your disk through Update Manager. there is any problem with booting the latest installed kernel, in my case, the one recommended for security, then I can boot to the grub menu by holding down the Shift key at the start of the boot process and from there, select the kernel recommended for stability to boot to instead.Linux Mint is also involved in the development of MATE, a classic desktop environment. From the Grub boot menu select the desired 4.4.0-xx kernel from the list. Patch the full stack, from kernel to library and applications.Keep the key pressed to make Grub display the boot menu. I assume that the new 4.4.0-xx kernel has already been installed. Community-driven, featuring Linux Mints Cinnamon Desktop with Ubuntu at the core, packed fast and full of features, here is the most traditionally modern. Overall, the Linux boot and startup process is fairly simple to understand. The startup process then takes over and finishes the task of getting the Linux computer into an operational state. Grub will always try to put the highest kernel number on top of the list and use it as the default kernel to boot, unless the user enters the Grub menu during startup and explicitly selects a different kernel from the list and boots it.Īs a consequence whoever switches back from a higher kernel series 4.8.0-xx to the lower kernel series 4.4.0-xx will face the same issue: making sure that Grub will boot the 4.4.0-xx kernel instead of the higher 4.8.0-xx kernel.īasically, there are 2 ways to achieve the goal: The boot sequence starts when the computer is turned on, and is completed when the kernel is initialized and systemd is launched. The kernel series 4.8.0-xx is a higher version than the default kernel series on Mint 18.x, kernel series 4.4.0-xx.
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