Date: Sun, 15 Feb 2009 23:37:34 -0800 (PST) From: Luke Dean <LukeD@pobox.com> To: freebsd-questions@freebsd.org Subject: Re: "boot0cfg: read /dev/ad1: Input/output error" using nanobsd Message-ID: <alpine.BSF.2.00.0902152314340.80490@border.lukas.is-a-geek.org> In-Reply-To: <alpine.BSF.2.00.0902151757360.80490@border.lukas.is-a-geek.org> References: <alpine.BSF.2.00.0902151757360.80490@border.lukas.is-a-geek.org>
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> I'm running FreeBSD 7.0 on a soekris 4801 with an image built by nanobsd. > It's a small piece of headless hardware that boots from a compact flash drive > - no moving parts. > > I wanted to update the operating system to 7.1 and install some more packages > on it, so I built a new image with nanobsd and uploaded it to the second > partition using nanobsd's updatep2 tool. The new image mounts fine, but the > last line of updatep2, "boot0cfg -s 2 -v ${NANO_DRIVE}" fails with the > message I've quoted in the subject line. > > The machine boots fine, but I can't provoke any kind of response from > boot0cfg except for input/output errors. I'd like to make the machine start > booting from the second slice. > > Any ideas? More information... The number of heads that the "diskinfo" reports is different depending on whether the compact flash card is plugged into the soekris box or mounted in a USB card reader/writer. The usb reader/writer reports: da0 512 # sectorsize 2052513792 # mediasize in bytes (1.9G) 4008816 # mediasize in sectors 249 # Cylinders according to firmware. 255 # Heads according to firmware. 63 # Sectors according to firmware. The soekris box reports: ad1 512 # sectorsize 2052513792 # mediasize in bytes (1.9G) 4008816 # mediasize in sectors 3977 # Cylinders according to firmware. 16 # Heads according to firmware. 63 # Sectors according to firmware. This is the same compact flash card. I gave up on boot0cfg and booting from the second partition, so I took the compact flash card out of the soekris box, connected it to my workstation with a USB card reader, and wrote a whole new image to it. Even after doing this, boot0cfg still won't work. I noticed some new messages on the console when I tried "boot0cfg -v ad1": ata0: FAILURE - non aligned DMA transfer attempted ad1: setting up DMA failed boot0cfg: read /dev/ad1: Input/output error ad1 is attached to ata0, per dmesg: ad1: 1957MB <LEXAR ATA FLASH CARD 20060911> at ata0-slave WDMA2 I think this means there is some kind of geometry problem here, but I don't know how to fix it. I'd like to find a solution to this, but it's not critical.
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