Adding Old Kernel to Grub2

[jmadero]

Hi All,

I installed an old kernel (pre version 3 because 3 has a bug that is causing major headaches for me). So I did the reconfigure grub-pc and it showed the correct images (both the most recent and the one I just installed). When I reboot and go into the grub menu it only shows the most recent kernel and of course memtest.

How do I add the one I just installed to the menu? It's weird that it shows up when I do the dpkg reconfigure grub-pc but that it's not showing up in the menu. Appreciate the help, happy holidays

[Jonathan183]

You could try making the os-prober script in /etc/grub.d executable and re-run update-grub. If that does not work then you can manually add it to 40_custom or 41_custom which should be in the same folder. If you go down the add to custom route then I suggest you do the following ...

sudo -s
cat /boot/grub/grub.cfg >> /etc/grub.d/41_custom
nano /etc/grub.d/41_custom

and wipe everything except the entry with the latest kernel version, then just update it to use the old kernel version ... after that a re-run of update-grub should add the entry to the menu for you (if it fails check 41_custom is executable )