I have a desktop with 3 drives- 2 SSD's and a hard disk. I have kept each drive dedicated for an operating system. The hard disk for Windows 10, one SSD for Ubuntu Unity 20.04 and one for beta testing Ubuntu 22.10.
The install went without errors for all 3 OSes but I'm getting only one Ubuntu entry in my grub. I would like to add another entry to grub to detect my Ubuntu 22.10 install but I don't know how to(i have already tried grub-install /dev/sda and update grub with no luck). I can boot into all three installs through the default uefi boot manager that i access when i want to boot into a live USB version of Ubuntu.Edit: After reboot, I'm unable to boot into Ubuntu 22.10 through the default uefi boot manager.
Can anyone help me? Thanks in advance