Date: Wed, 18 Nov 2009 21:50:25 -0800 From: Jeremy Chadwick <freebsd@jdc.parodius.com> To: freebsd-stable@freebsd.org Subject: Re: HEADS UP: major CAM ATA MFC Message-ID: <20091119055025.GA30911@icarus.home.lan> In-Reply-To: <4B04B908.1020505@rdtc.ru> References: <4B03322A.2080608@FreeBSD.org> <4B038E75.1010501@rdtc.ru> <20091118061726.GA1675@icarus.home.lan> <4B04B908.1020505@rdtc.ru>
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On Thu, Nov 19, 2009 at 10:18:32AM +0700, Eugene Grosbein wrote: > Jeremy Chadwick wrote: > > > I didn't have this problem. System has AHCI in use, and the kernel is > > built to make use of modular atacore. Specifically: > > > > # Modular ATA > > device atacore # Core ATA functionality > > device ataisa # ISA bus support > > device atapci # PCI bus support; only generic chipset support > > device ataahci # AHCI SATA > > device ataintel # Intel > > How should STABLE user (not tracking freebsd-current@) learn about CAM ATA configuration? > There is ahci(4) manual page in 8.0-PRERELEASE but no ada(4) that is linked here. I don't know. I'm waiting for someone to actually write documentation on this. I keep seeing commits talking about ATA disks via CAM (e.g. SCSI emulation for ATA disks), but the only thing I'm aware of that exists is SCSI emulation for ATAPI devices. > I've just tried "Modular ATA" configuration of Intel ICH7-based system plus "device ahci" > minus all traditional ata(4) kernel configuration, the kernel builds fine > but boot messages do not show any attempt to detect my SATA HDD, > so root mount just fails (I use GEOM UFS labels in my /etc/fstab). > Typing ? at "mounroot" prompt I see only daX devices standing for my USB cardreader > and no device for HDD. This sounds like a different problem. You may want to talk to mav@ about this. > It seems I miss ada(4) device and I cannot find it in 8.0 - not ada.ko nor "device ada". Same. -- | Jeremy Chadwick jdc@parodius.com | | Parodius Networking http://www.parodius.com/ | | UNIX Systems Administrator Mountain View, CA, USA | | Making life hard for others since 1977. PGP: 4BD6C0CB |
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