The FreeBSD Developers' Handbook describes how to get panic information (and dig out further details). http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kerneldebug.html#KERNELDEBUG-OBTAIN Was there any output before "ad7: FAILURE - device detached"? Losing the drive in the bios makes me think hardware, but I'd check for any firmware problems/updates if they exist. I have not tried yet, but FreeBSD8 is supposed to finally handle the anxiety of losing a drive. http://freebsdfoundation.org/press/2008Dec-newsletter.shtml#Project1
I would try smartctl from ports; run a long scan and read the full output to see if it passes or if you get a response like: # 1 Extended offline Completed: read failure 20% 32490 308342849 Also look above that output to see if there any metioned 'Error ## occured at disk power-on lifetime' type of messages. to scan, run: smartctl -t long /dev/ad7 after the scan, read output with: smartctl -a long /dev/ad7 What motherboard is it? "GeForce 8200" sounds like a graphics chipset to me. For hardware analysis, try to isolate it to a particular drive (sounds like it is only the seagate), cable (data or power), motherboard sata port. When the drive is not recognized, does a coldboot redetect it? Does the drive start any audible clicking? What model of drive is it? Make sure the drive is dusted off, increase the cooling, and try again; I have a drive that flakes out if the three speed antec fan in front of it is only on low but stabilizes when kept cooler; its a great hint to me that the drive is near life's end. _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"