On Sun, Dec 18, 2011 at 07:24:27PM +0700, Fajar A. Nugraha wrote:
> On Sun, Dec 18, 2011 at 6:52 PM, Pawel Jakub Dawidek <p...@freebsd.org> wrote:
> > BTW. Can you, Cindy, or someone else reveal why one cannot boot from
> > RAIDZ on Solaris? Is this because Solaris is using GRUB and RAIDZ code
> > would have to be licensed under GPL as the rest of the boot code?
> >
> > I'm asking, because I see no technical problems with this functionality.
> > Booting off of RAIDZ (even RAIDZ3) and also from multi-top-level-vdev
> > pools works just fine on FreeBSD for a long time now.
> Really? How do they do that?

Well, the boot code has access to all the disks, so it is just matter of
being able to intepret the data, which our boot code can do.

> In Linux, you can boot from disks with GPT label with grub2, and have
> "/" on raidz, but only as long as /boot is on grub2-compatible fs
> (e.g. single or mirrored zfs pool, ext4, etc).

This is not the same. On FreeBSD everything, including root file system
and boot directory, can be on RAIDZ.

Pawel Jakub Dawidek                       http://www.wheelsystems.com
FreeBSD committer                         http://www.FreeBSD.org
Am I Evil? Yes, I Am!                     http://yomoli.com

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