Date: Wed, 26 Mar 2003 10:47:01 -0800 From: Steve Willoughby <steve@ichips.intel.com> To: freebsd-questions@freebsd.org Subject: Can't boot from ad0 anymore (Did the WDC AC2540H stop being supported?) Message-ID: <200303261847.h2QIl11c003296@plxs0062.pdx.intel.com>
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Okay, here's my last attempt to get some useful work from an older system. It's running 4.5-RELEASE now, which would be fine except that I'm told I need to run a later release for the sound card driver I need. The problem is that it looks like as I progress to later versions of FreeBSD, the kernel gets progressively less willing to believe in my IDE controller. I'm wondering now if FBSD just phased out support for this, or if there's some simpler explanation available. Here's the behavior by FBSD version: 4.5-RELEASE: When I install and/or boot 4.5R, everything works perfectly fine (as far as the disk and OS, anyway). It recognizes ata0 without complaint at all, finds disk ad0, boots it, comes all the way up, and appears stable. 4.7-RELEASE: The install boot works fine, just like 4.5R, no complaints, finds ad0 okay, and manages to install the OS image on it. However, when I try to boot the freshly-installed kernel, it finds "atapci0" (not ata0), gives a warning about the quality of the chipset, and refuses to acknowledge the existence of any ad0 disk at all. (Note that the loader loaded and booted the kernel from ad0s1a:/kernel okay, but that kernel couldn't use ad0 as a root device.) Boot messages include: atapci0: <RZ 100? ATA Controller !WARNING! buggy chip data loss possible> possible> port 0x3f4-0x3f7,0x1f0-0x1f7 at device 1.0 on pci0 atapci0: Busmastering DMA not supported atapci0: Busmastering DMA disabled ata2: at 0x1f0 on atapci0 ata2: unable to allocate interrupt ... then I get "no such device 'ad'" when trying to specify the root device. 5.0-RELEASE The installer kernel doesn't recognize it anymore now either. I just get the install program, but the disk slice editor can't see any hard drives at all. Some info about the system: Pentium 90MHz system from long, long ago (yes, this is its last chance to avoid becoming a boat anchor) AmiBIOS 1.00.09.BF0 (c) 1992 disk: WDC AC2540H -- Steve Willoughby | "The purpose of IT is to seamlessly and trans- Intel DPG Eng. Computing | parently provide the other nine-tenths of the Application Development | iceburg for people who need to work with chunks <steve@ichips.intel.com> | of floating ice." --Strata R. Chalup
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