FreeBSD 10.3 slow boot on Supermicro X11SSW-F

[Larry Rosenman]

On 2016-07-14 13:36, Kurt Jaeger wrote:
> 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...
there were some buffering changes and other stuff in the boot 
blocks/loader.

-- 
Larry Rosenman                     http://www.lerctr.org/~ler
Phone: +1 214-642-9640                 E-Mail: ler at lerctr.org
US Mail: 17716 Limpia Crk, Round Rock, TX 78664-7281