Re: ZFS feature compatibility?

On 2021-01-25 16:03, Toomas Soome via freebsd-current wrote:
> 
> 
>> On 25. Jan 2021, at 22:15, mike tancsa <mike_at_sentex.net> wrote:
>>
>> On 1/25/2021 2:37 PM, Toomas Soome via freebsd-current wrote:
>>>
>>>> On 25. Jan 2021, at 21:31, Michael Butler via freebsd-current <freebsd-current_at_freebsd.org> wrote:
>>>>
>>>> I have a few machines on which I've been hesitant to run 'zpool upgrade' as I'm not sure of the (boot?) implications. They report like this ..
>>>>
>>>> imb_at_toshi:/home/imb> uname -a
>>>> FreeBSD toshi.auburn.protected-networks.net 14.0-CURRENT FreeBSD 14.0-CURRENT #25 main-eb61de5b78: Fri Jan 22 10:03:02 EST 2021 root_at_toshi.auburn.protected-networks.net:/usr/obj/usr/src/amd64.amd64/sys/TOSHI amd64
>>>>
>>>> imb_at_toshi:/home/imb> zpool status
>>>> pool: zroot
>>>> state: ONLINE
>>>> status: Some supported features are not enabled on the pool. The pool can
>>>>       still be used, but some features are unavailable.
>>>> action: Enable all features using 'zpool upgrade'. Once this is done,
>>>>       the pool may no longer be accessible by software that does not support
>>>>       the features. See zpool-features(5) for details.
>>>>
>>>> Is it safe to upgrade the root pool?
>>>>
>>>> 	imb
>>> We can not boot from encrypted pool and draid. Rest is all ok. Please note, you may need to update the bootblocks.
>>>
>> last Friday on zoo.freebsd.org <http://zoo.freebsd.org/>, mjg_at_freebsd.org <mailto:mjg_at_freebsd.org> and I could not boot
>> again because v2 bookmarks were on the boot pool.  I had to boot from
>> another disk, remove the bookmarks and then boot. This was on RELENG_13
>> (stable/13-c256203-g51d73a3e46c)
>>
>>     —Mike
> 
> /*
>  * List of ZFS features supported for read
>  */
> static const char *features_for_read[] = {
>         "org.illumos:lz4_compress",
>         "com.delphix:hole_birth",
>         "com.delphix:extensible_dataset",
>         "com.delphix:embedded_data",
>         "org.open-zfs:large_blocks",
>         "org.illumos:sha512",
>         "org.illumos:skein",
>         "org.zfsonlinux:large_dnode",
>         "com.joyent:multi_vdev_crash_dump",
>         "com.delphix:spacemap_histogram",
>         "com.delphix:zpool_checkpoint",
>         "com.delphix:spacemap_v2",
>         "com.datto:encryption",
>         "com.datto:bookmark_v2",
>         "org.zfsonlinux:allocation_classes",
>         "com.datto:resilver_defer",
>         "com.delphix:device_removal",
>         "com.delphix:obsolete_counts",
>         "com.intel:allocation_classes",
>         "org.freebsd:zstd_compress",
>         "com.delphix:bookmark_written",
>         NULL
> };
> 
> Are you sure you have bootblocks updated? ESP for UEFI boot and freebsd-boot for BIOS boot.
> 
> rgds,
> toomas
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> 

Toomas: how difficult do we think it would be to make a ports version of
the updated boot code, especially for the case of people using the
openzfs-kmod on 12.2?


-- 
Allan Jude