Re: ZFS feature compatibility?

From: Toomas Soome <tsoome_at_me.com>
Date: Mon, 25 Jan 2021 23:59:08 +0200
> On 25. Jan 2021, at 23:08, Allan Jude <allanjude_at_freebsd.org> wrote:
> 
> 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/> <http://zoo.freebsd.org/ <http://zoo.freebsd.org/>>, mjg_at_freebsd.org <mailto:mjg_at_freebsd.org> <mailto: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?
> 
> 

zstd would be interesting…  

rgds,
toomas
Received on Mon Jan 25 2021 - 20:59:13 UTC

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