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Date:      Sun, 1 Jul 2001 11:12:23 -0700 (PDT)
From:      Yoshiji Emoto <alumina@jcom.home.ne.jp>
To:        freebsd-gnats-submit@FreeBSD.org
Subject:   i386/28592: Please support boot from ATA RAID-0 device. (/dev/ar0s1a)
Message-ID:  <200107011812.f61ICNJ75426@freefall.freebsd.org>

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>Number:         28592
>Category:       i386
>Synopsis:       Please support boot from ATA RAID-0 device. (/dev/ar0s1a)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          wish
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jul 01 11:20:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     Yoshiji Emoto
>Release:        4.3-RELEASE
>Organization:
free programmer
>Environment:
HighPoint HPT370 RAID card.(ABIT)
IBM DTLA-305040 x 2
>Description:
can't boot from HPT370 created RAID-0 device.
can read kernel from RAID-0 device, but fail the mount-root.


description:
1.I modify the setroot() function (in /sys/i386/i386/autoconf.c),
  force set boot device to 'ar0 s1 a'.
  but can't boot from RAID-0 device.

2.after, call the makebdev() function by setroot() is fail.
  because ATA RAID device's bmaj is -1.

3.change the bmaj to 33 (in /sys/dev/ata/ata-raid.c), and
  re-compile the kernel and challenge boot from ATA RAID device.
  but can't boot from ATA RAID device too.

  ... sorry, my brain is overflow.;-(

>How-To-Repeat:
create the RAID-0 (stripe)
boot the FreeBSD from network.
use /sysinstall (fdisk & newfs).
make buildworld & installworld into the created RAID-0 device.
boot FreeBSD from RAID-0 device.

>Fix:
I don't know.

>Release-Note:
>Audit-Trail:
>Unformatted:

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