usb/143790: can not boot from usb hdd

[Hans Petter Selasky]

The following reply was made to PR usb/143790; it has been noted by GNATS.

From: Hans Petter Selasky <hselasky at c2i.net>
To: freebsd-usb at freebsd.org
Cc: Crazy Alex <crazyalexnt at inbox.ru>,
 freebsd-gnats-submit at freebsd.org
Subject: Re: usb/143790: can not boot from usb hdd
Date: Thu, 11 Feb 2010 10:14:20 +0100

 On Thursday 11 February 2010 08:50:58 Crazy Alex wrote:
 > >Number:         143790
 > >Category:       usb
 > >Synopsis:       can not boot from usb hdd
 > >Confidential:   no
 > >Severity:       non-critical
 > >Priority:       low
 > >Responsible:    freebsd-usb
 > >State:          open
 > >Quarter:
 > >Keywords:
 > >Date-Required:
 > >Class:          sw-bug
 > >Submitter-Id:   current-users
 > >Arrival-Date:   Thu Feb 11 08:00:01 UTC 2010
 > >Closed-Date:
 > >Last-Modified:
 > >Originator:     Crazy Alex
 > >Release:        8.0-STABLE-201001
 > >Organization:
 > 
 > Atlantis
 > 
 > >Environment:
 > 
 > FreeBSD  8.0-STABLE-201001 FreeBSD 8.0-STABLE-201001 #0: Mon Feb  8
 >  20:44:06 YEKT 2010      root@:/usr/src/sys/i386/compile/ALEX_USB   i386
 > 
 > >Description:
 > 
 > I can not boot installed on the usb hdd (da0) system. An attempt to mount
 >  the root system is to define the system usb hdd:
 > 
 > Manual root filesystem specification:
 >   <fstype>:<device>  Mount <device> using filesystem <fstype>
 >                        eg. ufs:/dev/da0s1a
 >                        eg. cd9660:/dev/acd0
 >                        This is equivalent to: mount -t cd9660 /dev/acd0 /
 > 
 >   ?                  List valid disk boot devices
 >   <empty line>       Abort manual input
 > 
 > >How-To-Repeat:
 > >
 > >Fix:
 > 
 > edit /usr/src/sys/kern/vfs_mount.c
 > 
 > in 1655 line:
 > 
 > ....
 > options = NULL;
 > 
 > + pause("usbwait", hz * 10);
 > 
 > root_mount_prepare();
 > 
 > Add a pause of 10 seconds to mount the root filesystem during this time usb
 >  hdd will have time to define the system. Then recompile the kernel.
 > 
 > >Release-Note:
 > >Audit-Trail:
 > >Unformatted:
 > 
 
 This is a known issue.
 
 --HPS