Could it have something to do with the splash image? In the ISO, it's png, 24bpp RGB.

"vbeinfo" (or is it "videoinfo"?) at grub prompt might give some clue..

Just noticed, I forgot to use  "-isohybrid-gpt-basdat" in the xorriso command. That's probably why the isohbrid failed for efi. I'll post a new ISO later but I don't have any way of testing it.

For the record, http://www.syslinux.org/wiki/index.php?title=Isohybrid explains why (and gdisk shows if the image has a valid gpt part, it didn't).

I don't need to do anything about "union=aufs", it's already there in the cfg files. Except to remind anyone interested who didn't know or forgot, the new live-boot default is overlay (but can also do aufs), aufs is removed fom newer kernels, older kernels can't do overlay. Best to specify union type if you use a custom cfg file.

New Exe GNU/Linux live-images for i386 and amd64 are now available:

http://exegnulinux.net/downloads
https://sourceforge.net/projects/exegnulinux/

These ISO's are originally built from a Devuan bootstrap. Apart from TDE (Trinity Desktop), consolekit2 and a few custom applications (e.g. installer) they are current Devuan Jessie. There is now less need for 3rd party "nosystemd" builds. TDE does not need gvfs (nor anything else GTK).

The installer should support uefi, this is not much tested so thanks in advance to anyone who does.

Thanks to Devuan and to TDE for making this possible. Special thanks to fsmithred (Refracta). Although refractasnapshot was not used to produce this, the research efforts revolving around Refracta towards a systemd-free live environment have been of essential value and influence. Refracta tools are included here but not much tested yet with TDE.

BTW, for the record, Refracta probably was the first proper Devuan (-derivative) live-image. My TDE builds were heavily reliant on 3rd party system packages in Devuan's early days and TDE itself is not actually in Devuan repos.

There are new isos ready now but I can't upload them till a server problem gets fixed. The currently available isos do dist-upgrade without a problem.

The new isos have less 3rd party packages, a uefi-capable installer and Refracta tools preinstalled.  They are originally built from a Devuan debootstrap.

At Devuan's beginning (and shortly before) we relied heavily on temporary hacks, 3rd party repos and custom package recompilations. Much of this was done in conjunction with Refracta (thanks fsmithred). Devuan's public presence was only IRC, heavily spammed by systemd fanboys. I had never properly compiled a deb package before, had to learn quick else accept systemd.

Now Devuan is almost complete, only a few 3rd-party package recompilations are still needed.

Exegnu was actually the first Debian live image with Trinity desktop and possibly the first systemd-free Jessie image. It's base switched to Devuan from day one, therefore was probably the first Devuan-based live-image (or was it Refracta ?)

Whether or not you get on with exegnu depends if you get on with Trinity Desktop. TDE advantages are active development, no systemd dependence, no gtk3 dependence, ram usage comparable to xfce4, old-style amarok...

I don't know why this never got noticed by Devuan. Probably because I'm not very good with updating documentation. It has also an outdated Distrowatch listing as a Debian derivative.