From owner-freebsd-stable@freebsd.org  Thu Jul 14 18:36:38 2016
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Date: Thu, 14 Jul 2016 20:36:40 +0200
From: Kurt Jaeger <lists@opsec.eu>
To: Miroslav Lachman <000.fbsd@quip.cz>, freebsd-stable@freebsd.org
Subject: Re: FreeBSD 10.3 slow boot on Supermicro X11SSW-F
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Hi!

> > I installed FreeBSD 10.3 on brand new machine Supermicro X11SSW-F. It 
> > sits on top of 4x 1TB Samsung SSDs on ZFS RAIDZ2.
> > 
> > The booting is painfully slow from BTX to menu to kernel loading.
> 
> I have the same problem on a Supermicro X11SSH-LN4F.

> > I found this blog post solving the same problem
> > http://smyck.net/2016/06/15/freebsd-slow-zfs-bootloader/
> 
> I'll test that solution. Thanks for the pointer!

Tested, works -- I took the 12.0-CURRENT boot files:

gpart bootcode -b pmbr ada0
gpart -p gptzfsboot -i 1 ada0
cp zfsloader /boot/zfsloader

Before: ca. 660 seconds to reboot, now 77 seconds to reboot.

Now, if someone could explain, why...

-- 
pi@opsec.eu            +49 171 3101372                         4 years to go !