On the newer install media (OPNsense-26.1.2-dvd-amd64.iso) and (OPNsense-26.1.2-vga-amd64.img) when installing onto a machine with a unformated hard drive, you can't use the Install (UFS) option without being presented with this error:

The only workaround is to Install via other modes >> then use Auto (UFS)
for some reason it will create the proper partitions, if you need a bigger swap partition like 8GB as presented with the main installer you can do it then.
If you have a partition table or any partitions already written to target disk, then this bug isn't present. For some reason the newer install media 26.1.2 tries to destroy a geom before formatting a blank disk. The 26.1 install media before this worked just fine.
I've tested my hardware and verified my hashes, and i'd suggest you try this on a blank VM.

The only workaround is to Install via other modes >> then use Auto (UFS)
for some reason it will create the proper partitions, if you need a bigger swap partition like 8GB as presented with the main installer you can do it then.
If you have a partition table or any partitions already written to target disk, then this bug isn't present. For some reason the newer install media 26.1.2 tries to destroy a geom before formatting a blank disk. The 26.1 install media before this worked just fine.
I've tested my hardware and verified my hashes, and i'd suggest you try this on a blank VM.
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