To see how many linux kernel image versions you have, do ls /lib/modules. You will see a list of directories (e.g. 2.6.32-51-generic, 2.6.32-52-generic, etc.)---one directory per kernel image version.
Note down the versions that you want to remove (usually, you should keep the last two versions---the last one for normal booting, and the previous one as a fallback).
Open Synaptic. Search for the version number (e.g. "2.6.32-51"). Scroll down the entries for the kernel image and kernel headers, e.g.
After the Synaptic finishes applying the changes, you can see that the corresponding directories have been deleted from /lib/modules. The next time you start Ubuntu, the removed kernel images will not appear in the (GRUB) boot menu.
Note down the versions that you want to remove (usually, you should keep the last two versions---the last one for normal booting, and the previous one as a fallback).
Open Synaptic. Search for the version number (e.g. "2.6.32-51"). Scroll down the entries for the kernel image and kernel headers, e.g.
- linux-image-2.6.32-51-generic
- linux-headers-2.6.32-51-generic
- linux-headers-2.6.32-51
After the Synaptic finishes applying the changes, you can see that the corresponding directories have been deleted from /lib/modules. The next time you start Ubuntu, the removed kernel images will not appear in the (GRUB) boot menu.
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