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Date: Tue, 17 May 2016 10:51:04 -0600 (MDT)
From: Warren Block <wblock@wonkity.com>
To: Andreas Nilsson <andrnils@gmail.com>
cc: Current FreeBSD <freebsd-current@freebsd.org>
Subject: Re: UEFI dual boot zfs root
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On Sun, 15 May 2016, Andreas Nilsson wrote:

> Hello,
>
> I'm trying to install current on my lenovo x1 yoga ( and keeping it dual
> boot for now).
>
> I have a fair amount of disk free after resizing. I can't seem to workout
> how to do the partitioning. Do I only need the freebsd-zfs partition (
> assuming no/zvol-swap?

I would think, but have not tested ZFS with UEFI.

> Do I manually copy boot1.efi to the existing EFI partition?

Yes.  Mount the EFI partition with msdosfs, then copy boot1.efi to 
/EFI/BOOT/.  Then comes the tricky part, getting the UEFI firmware to 
add that as a boot option.  In a Dell UEFI system, it could be added to 
the boot options, and the firmware has the user select the file from the 
EFI partition for that option.