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
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).