Sorry for posting this again there was a formatting issue (Whitext/White bg)
I found a strange issue with XFS filesystem when used for `/boot`. Out of <100%> it fails to install grub with the Calamares installer. However when the commit ef7850c757fb3dd2462a512cfa0ff19c89fcc0b1 (fs/xfs: Fix issues found while fuzzing the XFS filesystem) gets reverted installing on XFS `/boot` works. You can reproduce it 100% with this ISO and a positive result is possible with that ISO. Also not that installing it locally sometimes fails also but not so often
Here are the ISOs same exact ISO only difference is one is using modded Grub with commit reverted and the other unmodded grub from upstream...
Distro Base :
ArchLinux
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Best Regards.
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N: Steve, Chaanine
P: Hardware specialist / IT support