So I had memory full and couldn't boot(biggest culprit was docker volumes). during the cleanup I accidentally deleted all kernels hence nothing in the boot loader. I installed a new 18.04 in /dev/sda3. But i dont want to copy all the data over to this and install everything again.
Ideally what I want is, if possible,
- Somehow install new kernel to the old /dev/sda2 the /boot/ is kinda empty now and /boot/efi is totally empty.
- Delete the newly installed OS and free the all the space and add into the old partition.
Any help would be appreciated. Thanks