As the title says, I also added a common storage partition that is independent of both for steam games and such… how much incompatible both distros programs are?
I know is a not that easy to install a .deb in suse ad such.
The only issue I could potentially see with doing this, would be with your bootloader. Not sure about other bootloaders, but there’s potential for some weirdness with grub if both systems are trying to do their own thing and constantly overwrite each other’s config every time you upgrade the kernel. You’d probably want to use something other than grub (although some of the others may have similar issues, so make sure you do your research - I think rEFInd used to be recommended for things like this, but it’s been a while and that might no longer be the best route anymore) or, configure one of your distros to not automatically update grub after updates, but in that case you’d need to login to whatever system you still have managing your grub and update grub on that system, every time the kernel updates on the other distro.
But other than that, there shouldn’t be any issues with dual booting both, outside of the fact that you’ll basically have everything installed twice.
How does something like that happen?
The configs are in each distro’s boot partition or root directory.
In ESP, the EFI files are going to be in their own directories. An exception to this may be dualbooting distros built on same base. For example Linux Mint and Ubuntu. They both place the EFI file in /ubuntu/grubx64.efi inside the ESP. This means, they just overwrite them. This may be viewed as a positive though, as no matter which distro updated GRUB as last, it will always be up-to-date.Anyway, I dualboot Manjaro with Linux Mint. I just set Manjaro’s GRUB as default in UEFI and had no problems. The only annoyance is that as you mentioned, after updating Linux Mint’s kernel I need to boot into Manjaro to update GRUB.
DISCLAIMER: I may be wrong, I am often wrong.
