I have Elementary OS Loki and Ubuntu 16.04 installed as dual boot on my laptop. It was working fine; during boot both the OS were displayed in the grub menu and I was able to select whichever I desired to use.
Recently, I updated my Elementary OS (basically
sudo apt update and
sudo apt upgrade). But after restarting, I only see
elementary in the options and not my other Ubuntu. So, I booted into elementary OS and did
sudo update-grub but still it did not detect my other Ubuntu. Following is what I get.
$ sudo update-grub Generating grub configuration file ... Found linux image: /boot/vmlinuz-4.4.0-92-generic Found initrd image: /boot/initrd.img-4.4.0-92-generic Found linux image: /boot/vmlinuz-4.4.0-79-generic Found initrd image: /boot/initrd.img-4.4.0-79-generic Found linux image: /boot/vmlinuz-4.0.0-kali1-amd64 Found initrd image: /boot/initrd.img-4.0.0-kali1-amd64 Adding boot menu entry for EFI firmware configuration done
I believe Elementary OS is based of the newest Ubuntu LTS that is 16.04. Can't I install two OS of the same version?
What's the deal here? I really need to access my other OS.