RPI4 boot with ZFS supported? (was: Re: rpi4 no boot 20201112 snapshot (success with 20201105))

[Ronald Klop]

On Sat, 21 Nov 2020 09:05:04 +0100, Ronald Klop <ronald-lists at klop.ws>  
wrote:

> On Sat, 21 Nov 2020 00:14:48 +0100, Klaus Cucinauomo  
> <maciphone2 at googlemail.com> wrote:
>
>>
>>
>>> Am 20.11.2020 um 23:01 schrieb Ronald Klop <ronald-lists at klop.ws>:
>>> ….
>>> Next step is connecting SSD and move the root fs. Don’t care if  
>>> /boot/msdos stays on the SD. ….
>>
>> Hi,
>>
>> you could simply `dd‘ the whole SD-card to xy.img and dd that image to  
>> SSD(or use e.g. BalenaEtcher or so).
>> The 8GB model will boot straight from SSD(no SD-card needed) with :
>> https://reviews.freebsd.org/D26853
>> see:
>> https://dmesgd.nycbug.org/index.cgi?do=view&id=5719
>
>
> Nice. Might try that. Can that also boot from ZFS? Or do I still need a  
> small UFS /boot than?
>
> Regards,
> Ronald.


I suppose it does support ZFS:

[root at rpi4 /boot/msdos]# strings EFI/BOOT/bootaa64.efi | grep zfs
     zfs:%s
zfs_be_root
zfs-bootonce
zfs_be_pages
zfs_be_currpage
list child datasets of a zfs dataset
zfs:%s%s/%s
org.open-zfs:large_blocks
zfs bootonce: %s
zfs:
lszfs
org.zfsonlinux:allocation_classes
zfs:%s/%s
zfs_be_active
/usr/src/sys/contrib/openzfs/module/zstd/zfs_zstd.c
org.zfsonlinux:large_dnode


Regards,
Ronald.