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


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).

Steven Chamberlain

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