2.4.1 and 2.4.0 MBR/ZFS installer is broken.

[bfeitell]

I support a number of HP T5730/T5735 thin clients that boot PFSense from USB.  These are 64bit devices with a socketed AMD mobile processor.

I have discovered that no variant of GPT partitioned USB flash drive will boot on these machines.  The hardware is already flashed to the latest available bios.

I have tried doing a ZFS install using an MBR partition scheme, but this does not yield a fully working install of PFSense.

After the system boots, everything seems to work, but there are hidden problems lurking.

While the /boot appears in directory listings, it is not accessible, and an attempt to cd to /boot will fail.

cd /boot yields: "boot: No such file or directory."

Attached are images of the output of "ls -al /" showing that /boot appears in a directory listing, and an image of the failure of an attempt to upgrade the system by choosing 13 from the CLI menu.  The upgrade fails with, "pkg-static: Fail to create /boot/kernel:No such file or directory"

A booted 2.4.1 install shows the same directory listing and cd failure.

Is ZFS on MBR intended to be a supported configuration?

Cheers,
Bennett