[DevilMaster]

I have read the article at https://www.gamingalexandria.com/wp/2019...4-and-sgi/ . At one point it says:

The demo will fail if you use the XFS file system on your workstation due to an error in old IRIS Performer libraries. Mount (read-write) an EFS volume to /mnt (or any other mounting point) and use ‘export PFTMPDIR=/mnt’.

I have asked around about the EFS file system, and I got the following answer:

Never heard of it.
Wikipedia says it's an ancestor of XFS which I've been using for decades, but they're not compatible.
The best thing seems to try NetBSD.
Judging by the commits to the source code, it is well up to date, last changes 22 months ago. http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/fs/efs/
For an obsolete FS it means it is supported, so NetBSD 9.x or 10.x on recent machines or virtual machines, e.g. VirtualBox.

So I installed NetBSD 10.0 on a VirtualBox virtual machine, downloaded the demo ISO, unzipped it and tried to mount it. Result:

mount: Unknown special file or file system `SGI-Nintendo-Ultra-64.iso'

Is there really no hope without an SGI machine? I'd like to explore the assets and see what I can do with them.