Bug 28592

Summary:	Please support boot from ATA RAID-0 device. (/dev/ar0s1a)
Product:	Base System	Reporter:	Yoshiji Emoto <alumina>
Component:	i386	Assignee:	Søren Schmidt <sos>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	4.3-RELEASE
Hardware:	Any
OS:	Any

Description Yoshiji Emoto 2001-07-01 19:20:02 UTC

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.;-(

Fix: 

I don't know.
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.

Comment 1 Johan Karlsson freebsd_committer

2002-08-19 19:56:42 UTC

Responsible Changed
From-To: freebsd-bugs->sos

Over to ATA maintainer.

Comment 2 Søren Schmidt freebsd_committer

2002-08-19 20:00:05 UTC

State Changed
From-To: open->closed

This should work from 4.6 forward.