The following reply was made to PR usb/109397; it has been noted by GNATS.
From: "M. Warner Losh" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Cc: [EMAIL PROTECTED]
Subject: Re: usb/109397: [panic] on boot from USB flash
Date: Wed, 21 Feb 2007 09:01:38 -0700 (MST)
In message: <[EMAIL PROTECTED]>
Alexander Shiryaev<[EMAIL PROTECTED]> writes:
:
: >Number: 109397
: >Category: usb
: >Synopsis: [panic] on boot from USB flash
: >Confidential: no
: >Severity: serious
: >Priority: medium
: >Responsible: freebsd-usb
: >State: open
: >Quarter:
: >Keywords:
: >Date-Required:
: >Class: sw-bug
: >Submitter-Id: current-users
: >Arrival-Date: Wed Feb 21 15:40:04 GMT 2007
: >Closed-Date:
: >Last-Modified:
: >Originator: Alexander Shiryaev
: >Release: RELENG_6
: >Organization:
: MSU
: >Environment:
: FreeBSD aix-lame.hackers 6.2-STABLE FreeBSD 6.2-STABLE #3: Tue Feb 6
14:16:42 MSK 2007 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/Lassie_Kernel_2
i386
: >Description:
: I have installed FreeBSD to USB flash:
:
: # dd if=/dev/zero of=/dev/da0 bs=32k count=1
: # fdisk -B da0
: # fdisk -v da0
: # bsdlabel -r -w -B da0s1 auto
: # bsdlabel -e da0s1
:
: # size offset fstype [fsize bsize bps/cpg]
: a: 256m 0 4.2BSD 1024 8192
: c: <do not touch>
: d: * * 4.2BSD 2048 16384
:
: # newfs /dev/da0s1a
: # newfs -U /dev/da0s1d
:
: # mkdir /mnt/da0
: # mount /dev/da0s1a /mnt/da0
: # mkdir /mnt/da0/var
: # mkdir /mnt/da0/tmp
: # mkdir /mnt/da0/usr
: # mount /dev/da0s1d /mnt/usr
: # chmod 1777 /mnt/da0/tmp
:
: # cd /usr/src
: # make installworld DESTDIR=/mnt/da0
: # cd etc
: # make distribution DESTDIR=/mnt/da0
: # cd ..
: # make installkernel DESTDIR=/mnt/da0
:
: # cat > /mnt/da0/etc/fstab <<DATA
: /dev/da0s1a / ufs rw 1 1
: /dev/da0s1d /usr ufs rw 2 2
: /dev/cd0 /cdrom cd9660 ro,-C=KOI8-R,noauto 0 0
: DATA
Try adding 'sync; sync; sync' here.
: # reboot
:
: Then I try to boot system from USB flash and get a panic:
: http://users.msu.dubna.ru/~shiryaev/files/fbsd/nokia015_1.jpg
This looks like the filesystem is corrupted, and the kernel is hitting
one of the internal consistancy checks.
Warner
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