What's different about the 11.2-RELEASE-U1 ISO from 11.1?

[averyfreeman]

I am having an issue creating a bootable installation USB that works with a Lenovo-branded J1800 motherboard that offers UEFI and 'CSM' (BIOS, legacy, etc.) boot methods.

Here are specifics:

Code:

FreeNAS-11.2-RELEASE-U1.iso
Burning in Windows LTSC 2019
Rufus 3.4
CSM enabled in BIOS of target system
DD Mode auto-detected

Auto-detect UEFI or 'CSM':

Code:

UEFI boot operating system not found

Legacy-boot first or only:

Code:

Insert bootable media (blah blah)

Switched to FreeNAS-11.1-RELEASE.iso

Burned with Rufus 2.18.1213 I found in a backup, not sure if it's available for download anymore - I'll attach a copy

Settings:

Code:

MBR for BIOS or UEFI-CSM
ISO image write
Quick Format
Create bootable disk
Create extended label and icons

Booted fine from UEFI (my preferred boot method)
Seems to be installing on another USB flash drive just fine now

tl;dr

What could potentially be the issue with the new 11.2-U1 ISO?

 

[averyfreeman]

Note: I found this guide useful but only applied to FreeNAS 11.1 and Rufus <=2.18 (did not work with 11.2 and Rufus 3.4)

As a side note, CrystalDiskMark tests using a mounted NFS share were 3-4x faster (60-80 MBs vs 20 MBs) for sequential reads/writes in OpenMediaVault vs FreeNAS presumably due to lighter OS framework and ext4 vs zfs file system, which seems more appropriate for J1800 processor system - but FreeNAS DOES work (it's just slower on this particular underpowered, obviously far from supported, system).