Bug#775395: partman-zfs in d-i jessie image does not create grub-compatible /boot ZFS mirror

[Michael Milligan <milli@acmeps.com>]

On 01/27/2015 02:02 PM, Steven Chamberlain wrote:
> Hi,
> 
> Michael Milligan wrote:
>> But installing Grub failed with "unknown filesystem".  In
>> troubleshooting the issue, it seems grub2 (version currently is
>> 2.02~beta2-19) does not recognize the "feature@lz4_compress" option (and
>> had been previously reported) of the ZFS pools that kFreeBSD kernel 10.1
>> creates.
> 
> Thanks for the report.
> 
> It is actually expected that grub2 since 2.02 should understand these
> feature flags, including LZ4 compression.  I thought it was working for
> me when I last tested.
> 
> Hopefully this can be figured out without having to default to using
> "-d" (disabling new features including LZ4 metadata compression).

Yeah, failed for me using 10.1 kfreebsd image...   I did not have time
to retry it with each individual feature flag turned on/off to find the
exact combination it was choking on, but at least one of them is still
not recognized by grub-probe, not necessarily lz4_compress.

Regards,
Mike

-- 
Michael Milligan                                   -> milli@acmeps.com
Acme Professional Services LLC