boot1.efi and ZFS

Victor Sudakov vas at
Tue Oct 22 07:33:56 UTC 2019

Dear Colleagues,

Out of curiousity. UEFI(8) says that 

"boot1.efi searches partitions of type freebsd-ufs and
freebsd-zfs for	loader.efi.  The search	begins with partitions
on the device from which boot1.efi was loaded, and continues
with other available partitions.  If both freebsd-ufs and
freebsd-zfs partitions exist on	the same device	the
freebsd-zfs partition is preferred.  boot1.efi then loads and
executes loader.efi."

This means that boot1.efi (with binary size 80k) includes a ZFS
filesystem driver (even if just readonly)? Really, a ZFS implementation
can be so small in size?

Is _all_ the ZFS access code really in /src/stand/efi/boot1/zfs_module.c ? 

Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
2:5005/49 at fidonet
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