mountroot> while booting r255342 memstick

[Joel Dahl]

On Thu, Sep 12, 2013 at 12:32:12AM +0000, Uzumaki Naruto wrote:
> Hi,
> I downloaded FreeBSD-10.0-CURRENT-amd64-20130907-r255342-memstick.img and dd into KINGSTON DT 101 G2 1.00 USB pendrive

Looks similar to what I reported back in February:
http://lists.freebsd.org/pipermail/freebsd-current/2013-February/039542.html

mav@ committed a fix for this here:
http://lists.freebsd.org/pipermail/svn-src-head/2013-February/045143.html

Perhaps a quirk is needed for your USB pendrive as well. 

-- 
Joel