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.