usb/109397: [panic] on boot from USB flash

[Alexander Shiryaev]

The following reply was made to PR usb/109397; it has been noted by GNATS.

From: Alexander Shiryaev <coumarin at gmail.com>
To: "M. Warner Losh" <imp at bsdimp.com>
Cc: freebsd-gnats-submit at freebsd.org
Subject: Re: usb/109397: [panic] on boot from USB flash
Date: Thu, 22 Feb 2007 01:09:22 +0300

 M. Warner Losh wrote:
 > Are you using boot0 (the FreeBSD boot manager)?  That might write it
 > back.  Are you using packet mode?
 > 
 
 No, I'm not using FreeBSD boot manager (don't use boot0cfg and sysinstall):
 
 # dd if=/dev/zero of=/dev/da0 bs=32k count=1
 # fdisk -B da0
 # bsdlabel -B -r -w da0s1 auto
 ...
 
 I also try to use GRUB:
 
 grub> root (hd1,0,a)
 grub> kernel /boot/loader
 grub> boot
 ...
 
 but get the same result.
 
 > Also, are you sure that the usb flash is good before you try to boot
 > it?  I'm guessing it is, but I have to ask...
 > 
 > Warner
 > 
 
 USB flash works well, problem only on boot FreeBSD from it.
 
 Alexander.