How do I remove old Linux kernels?

How do I remove old Linux kernels from grub?

7 Answers

  1. Open up a terminal ( Ctrl + Alt + T ).
  2. Type uname -r . …
  3. Run the following command: dpkg –list | grep linux-image . …
  4. Note down the names of all the kernels which you want to remove.
  5. To remove the kernels, run: sudo apt-get purge linux-image-x.x.x.x-xyz (replace the kernel name with an appropriate one).

How do I delete a kernel?

Remove Older Kernel Entries

  1. Select “Package Cleaner” on the left and “Clean Kernel” from the right panel.
  2. Press the “Unlock” button at the lower right, enter your password.
  3. Select from the displayed list the kernel images and headers you wish to remove.

How do I change kernels in Linux?

How to switch kernels on Arch Linux

  1. Step 1: Install the kernel of your choice. You can use the pacman command to install the Linux kernel of your choice. …
  2. Step 2: Tweak the grub configuration file to add more kernel options. …
  3. Step 3: Re-generate the GRUB configuration file.

How do I clean up grub menu?

Clean up your grub menu from the kernels you do not use

  1. Determine which Kernel you are using. Just run: uname -r. and write down the result, in my case this was my output: $ uname -r 2.6.22-14-generic.
  2. Look for all installed kernel images. Go to /boot/ and list its contents. cd /boot ls vmlinuz* …
  3. Remove the kernels you want.

How do I remove old packages from Ubuntu?

7 Ways to Uninstall Ubuntu Packages

  1. Remove With Ubuntu Software Manager. If you run Ubuntu with the default graphical interface, you may be familiar with the default software manager. …
  2. Use the Synaptic Package Manager. …
  3. Apt-Get Remove Command. …
  4. Apt-Get Purge Command. …
  5. Clean Command. …
  6. AutoRemove Command.

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:

  1. rm /boot/{config-,initrd. img-,System. map-,vmlinuz- }`uname -r`
  2. rm -rf /lib/modules/`uname -r`
  3. sudo update-grub.
  4. reboot – this should not reboot you back to the previous version of the kernel.

How do I get rid of old Vmlinuz?

Approach 3:

  1. Type sudo mkdir /boot2 to create the /boot2 directory that will temporarily house your kernels.
  2. Type sudo umount /boot/efi . …
  3. Type sudo cp -a /boot/* /boot2/ to copy everything from /boot to /boot2 .
  4. Type sudo umount /boot to unmount the /boot directory.
  5. Type sudo rm -rf /boot . …
  6. Type sudo mv /boot2 /boot .

How do I downgrade my kernel version?

When the computer loads GRUB, you may need to hit a key in order to select non-standard options. On some systems, the older kernels will be shown here, while on Ubuntu you’ll need to select “Advanced options for Ubuntu” to find older kernels. Once you select the older kernel, you’ll boot into your system.

How do I change my default kernel?

Open /etc/default/grub with a text editor, and set GRUB_DEFAULT to the numeric entry value for the kernel you chose as the default. In this example, I choose the kernel 3.10. 0-327 as the default kernel. Finally, re-generate GRUB configuration.

Can I change kernel version?

The only way to change the kernel version is you download the kernel source, modify the defconfig of your device and compile.. “Kernel Kitchen” Just un/pack the ramdisk..

How do I boot into a different kernel?

From the GRUB screen select Advanced options for Ubuntu and press Enter . A new purple screen will appear showing a list of kernels. Use the ↑ and ↓ keys to select which entry is highlighted. Press Enter to boot the selected kernel, ‘e’ to edit commands before booting or ‘c’ for a command line.

How do I remove old kernels from grub2 Fedora?

2. Delete / Remove Old Kernels

  1. 2.1 Delete / Remove Old Kernels on Fedora. ## dnf repoquery set negative –latest-limit ## ## as how many old kernels you want keep ## dnf remove $(dnf repoquery –installonly –latest-limit=-2 -q)
  2. 2.2 Delete / Remove Old Kernels on CentOS / Red Hat (RHEL)

How do I remove old kernels in RedHat 7?

Remove old kernels from Redhat 7.4 / CentOS 7

  1. Step 1: First check, do you have any old kernel images on your RedHat / CentOS system.
  2. Step 2: Install yum-utils package.
  3. Step 3: Remove old kernels.
  4. Step 4: Remove unwanted dependencies not required any more in the system.
Like this post? Please share to your friends:
OS Today