hello,

Is there a tutorial to install Fedora (33/34) as a 2nd OS after an existing Linux OS has been installed? (In my case, after ArchLinux)

I have done numerous multi boot situations with Fedora as the 1st install, but Fedora's Anaconda installer installs it's own boot loader. As a 2nd, yes...Anaconda can overwrite the boot installer and one can run utilities to map the other Linux OS or OS(s). But when using the Anaconda installer and selecting Manual Partitioning, the installer is unhappy unless one installs its own boot partition settings. (I was trying to preserve the current Grub2 boot loader)

Thanks.

I'm sure you can search as well as the rest of us. That said, I couldn't understand what you were getting at. If you are practiced at dual-boot installs, the order shouldn't matter. So I went and found a laptop with only Mint on it - a UEFI machine - and shrunk it down so I could test a F34 install. It's gotta be said the (not-so) new Anaconda partitioning is crap, but anyway ...
- assign the existing EFI partition to /boot/efi
- assign some space to / (standard ext4 partition, not btrfs)
- ditto /home

Mark it as done, go back to the install screen. Everything seemed to be accepted, but I didn't actually install.

So, tell us what you are actually having issues with rather than generalities. If it's not a EFI machine (in EFI mode) say so.

1 members found this post helpful.

read the section on boot instllation:
https://docs.fedoraproject.org/en-US...ing-bootloader

no. I just wanted you to do some work. Mission accomplished.

Thank you. I have been looking through this document. I'll continue to dig into it and try to figure it out. Appreciate the help.

Interesting attitude for someone wanting others to give up their time to help you.
You might find people will be more reticent.

Hopefully just you sunshine.

Hi,

Figured out a solution within Anaconda. The confusion point was in the documentation indicating a checkbox to "do not install the boot loader." Did not see it either in Fedora 34 or CentOS8.

modification to existing boot loader succeeded for both distributions. thx again.