7446 zpool create should support efi system partition

root@test:~# zpool create -B tank c0t1d0s0

create boot partition can only be used with wholedisk: c0t1d0s0

root@test:~# zpool create -B -o bootsize= tank c0t1d0s0

bad boot partition size '': bad numeric value ''

root@test:~# zpool create -B -o bootsize=asd tank c0t1d0s0

bad boot partition size 'asd': bad numeric value 'asd'

root@test:~# zpool create -B -o bootsize=a1 tank c0t1d0s0

bad boot partition size 'a1': bad numeric value 'a1'

root@test:~# zpool create -B -o bootsize=1a tank c0t1d0s0

bad boot partition size '1a': invalid numeric suffix 'a'

root@test:~# zpool create -B -o bootsize=1m tank c0t1d0s0

create boot partition can only be used with wholedisk: c0t1d0s0

root@test:~# zpool create -B -o bootsize=1m tank c0t1d0

Warning: EFI System partition size 1M is not allowing to create FAT32 file

system, which may result in unbootable system.

root@test:~#
root@test:~# zpool get bootsize tank

NAME  PROPERTY  VALUE     SOURCE

tank  bootsize  1M        local

root@test:~#
root@test:~# zpool set bootsize=2M tank

cannot set property for 'tank': property 'bootsize' can only be set during pool creation

root@test:~#
root@test:~# zpool destroy tank

root@test:~# zpool create tank c0t1d0

root@test:~# zpool get bootsize tank

NAME  PROPERTY  VALUE     SOURCE

tank  bootsize  -         default

root@test:~#
root@test:~# zpool destroy tank

root@test:~# zpool create -B tank c0t1d0

root@test:~# zpool get bootsize tank

NAME  PROPERTY  VALUE     SOURCE

tank  bootsize  256M      local

root@test:~#
format> ver
Volume name = <        >

ascii name  = <lofi-test-1.0-2.00GB>

bytes/sector    =  512

sectors = 4194303

accessible sectors = 4194270

Part      Tag    Flag     First Sector       Size       Last Sector

  0     system    wm               256    256.00MB        524543  

  1        usr    wm            524544      1.74GB        4177886  

  2 unassigned    wm                 0         0             0  

  3 unassigned    wm                 0         0             0  

  4 unassigned    wm                 0         0             0  

  5 unassigned    wm                 0         0             0  

  6 unassigned    wm                 0         0             0  

  8   reserved    wm           4177887      8.00MB        4194270    
format>
sample setup with mirror:

tsoome@uefi-oi:~$ zpool get bootsize

NAME   PROPERTY  VALUE     SOURCE

rpool  bootsize  256M      local

tsoome@uefi-oi:~$ zpool list

NAME    SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT

rpool  15,6G  5,93G  9,70G         -    26%    37%  1.00x  ONLINE  -

tsoome@uefi-oi:~$ zpool status

  pool: rpool

 state: ONLINE

  scan: resilvered 4,51G in 0h1m with 0 errors on Tue Nov 22 23:19:50 2016

config:
    NAME        STATE     READ WRITE CKSUM
    rpool       ONLINE       0     0     0
      mirror-0  ONLINE       0     0     0
        c3t0d0  ONLINE       0     0     0
        c3t1d0  ONLINE       0     0     0

errors: No known data errors

tsoome@uefi-oi:~$
and with raidz1:
root@beastie:~# zpool get bootsize rpool

NAME   PROPERTY  VALUE     SOURCE

rpool  bootsize  256M      local

root@beastie:~# zpool list

NAME    SIZE  ALLOC   FREE  EXPANDSZ   FRAG    CAP  DEDUP  HEALTH  ALTROOT

rpool  14,5T  60,6G  14,4T         -     0%     0%  1.00x  ONLINE  -

root@beastie:~# zpool status

  pool: rpool

 state: ONLINE

  scan: none requested

config:
    NAME        STATE     READ WRITE CKSUM
    rpool       ONLINE       0     0     0
      raidz1-0  ONLINE       0     0     0
        c3t0d0  ONLINE       0     0     0
        c3t1d0  ONLINE       0     0     0
        c3t3d0  ONLINE       0     0     0
        c3t4d0  ONLINE       0     0     0

errors: No known data errors

root@beastie:~#