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Re: ZFS'ing my T5120 with Debian

On Fri, May 25, 2018 at 11:39:49PM +0200, John Paul Adrian Glaubitz wrote:
> On 05/25/2018 09:38 PM, Chris Ross wrote:
> > root@t5120:/var/tmp# grub-install /dev/sda
> > Installing for sparc64-ieee1275 platform.
> > grub-install: warning: this GPT partition label contains no BIOS Boot Partition; embedding won't be possible.
> > grub-install: error: filesystem `zfs' doesn't support blocklists.
> > root@t5120:/var/tmp# 
> That error message is quite clear: You have to set up a separate non-ZFS
> partition which serves as a boot partition. Booting from a ZFS partition
> using blocklists doesn't work.

Though, the conversation earlier covered that grub supports ZFS.  You say above
that booting from a ZFS partition using blocklists doesn't work.  There's
something I'm not understanding in the space across those two statements.

FreeBSD has a zfsbootloader, which is what I've been using.  And, whether
I can use ZFS or not, I don't think I want to start down the path of booting
from magnetic media that isn't replicated onto another spindle.  If debian
will let me boot from ZFS, how do I do it?  If it won't, are there other options
to boot from mirrored filesystems?

> Btw, I'm surprised to read that the T5120 supports GPT disk labels? I
> thought that GPT is supported on T4 and newer only.

I believe the same, I don't know what that error message means.  I know that
I do have sun labels, not GPT labels, on my disks.

          - Chris

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