I tried a different setup - using a spare drive on the boards ata controller, booting off that - and attaching a single drive to the SX4060 after cvsuping to 6.1 Pre-5 Due to the boards buggy ServerWorks ROSB4 ata controller, I've set hw.ata.ata_dma=0 in loader.conf (This might have helped matters too I guess). So with this setup, it boots (after complaining somewhat). Now that its booting I'm in a position to try patches/hacks etc, so any suggestions for stuff to try are welcome! Cheers Mark A dmesg is here: http://homepages.paradise.net.nz/markir/download/dmesg-istral Some interesting bits: Mar 2 20:29:27 istral kernel: atapci1: <Promise PDC20621 UDMA100 controller> po rt 0xe800-0xe8ff,0xe400-0xe4ff,0xe000-0xe0ff mem 0xfeb00000-0xfebfffff,0xfeaf800 0-0xfeafffff irq 23 at device 3.0 on pci1 Mar 2 20:29:27 istral kernel: pci1: child atapci1 requested type 4 for rid 0x20 , but the BAR says it is an memio ..... Mar 2 20:29:27 istral kernel: ad8: setting PIO4 on PDC20621 chip Mar 2 20:29:27 istral kernel: ata4: reiniting channel .. Mar 2 20:29:27 istral kernel: ata4: reset tp1 mask=03 ostat0=50 ostat1=00 Mar 2 20:29:27 istral kernel: ata4: stat0=0x50 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: stat1=0x00 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: reset tp2 stat0=50 stat1=00 devices=0x1<ATA _MASTER> Mar 2 20:29:27 istral kernel: ata4: reinit done .. Mar 2 20:29:27 istral kernel: ad8: FAILURE - SETFEATURES ENABLE RCACHE timed ou t Mar 2 20:29:27 istral kernel: fdc0: output ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: output ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: output ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: output ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: fdc0: input ready timeout Mar 2 20:29:27 istral kernel: ata4: reiniting channel .. Mar 2 20:29:27 istral kernel: ata4: reset tp1 mask=03 ostat0=50 ostat1=00 Mar 2 20:29:27 istral kernel: ata4: stat0=0x50 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: stat1=0x00 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: reset tp2 stat0=50 stat1=00 devices=0x1<ATA _MASTER> Mar 2 20:29:27 istral kernel: ata4: reinit done .. ...... Mar 2 20:29:27 istral kernel: ad8: WARNING - SETFEATURES SET TRANSFER MODE task queue timeout - completing request directly Mar 2 20:29:27 istral kernel: ad8: setting PIO4 on PDC20621 chip Mar 2 20:29:27 istral kernel: ad8: WARNING - SETFEATURES ENABLE RCACHE taskqueu e timeout - completing request directly Mar 2 20:29:27 istral kernel: ad8: WARNING - SETFEATURES ENABLE WCACHE taskqueu e timeout - completing request directly Mar 2 20:29:27 istral kernel: ad8: WARNING - SET_MULTI taskqueue timeout - comp leting request directly Mar 2 20:29:27 istral kernel: ata4: reinit done .. Mar 2 20:29:27 istral kernel: ad8: TIMEOUT - READ retrying (0 retries left) LBA =0 Mar 2 20:29:27 istral kernel: ata4: reiniting channel .. Mar 2 20:29:27 istral kernel: ata4: reset tp1 mask=03 ostat0=58 ostat1=00 Mar 2 20:29:27 istral kernel: ata4: stat0=0x50 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: stat1=0x00 err=0x01 lsb=0x00 msb=0x00 Mar 2 20:29:27 istral kernel: ata4: reset tp2 stat0=50 stat1=00 devices=0x1<ATA _MASTER>