thanks @kieran, yeah, on my librem 15v4 I had the same partition structure for ubuntu. 512M EFI and the root partition mounted on /
but, not to go down the rabbit hole of UEFI and MBR, etc. I guess my basic question in the context of this forum, is does Purism, Librem, Librem Key, Pureboot, etc. support these other OSes? in the documentation, FAQ’s etc. they do state that other OSes can be installed, but is that with Pureboot or does it require coreboot / seaBIOS? In these forum postings people have said other OSes can be installed with PureBoot and LK. So, I’m just wondering then are there special procedures that need to be followed which just haven’t been documented? I"m not finding any documentation I can folow. Or, is it possible I do have osme hardware issue with my laptop? Or have there been changes to the Fedora or ubuntu, etc such that the latest versions of these OSes are not compatible with PureBoot and LK?
I’m just trying to understand where the disconnect is from what what I have read as it should be possible, and my own experiences.