Date: Fri, 13 Jul 2001 04:07:33 +0200 From: Walter Hop <walter@binity.com> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Harddrive problems -- urgent, help appreciated Message-ID: <13889337831.20010713040733@binity.com>
next in thread | raw e-mail | index | archive | help
Hi all, to my shock I saw the nightly dump(8) output of my machine, which freaked me out: [...normal dump output...] DUMP: dumping (Pass III) [directories] DUMP: dumping (Pass IV) [regular files] DUMP: read error from /dev/ad0s1a: Invalid argument: [block -522960426]: count=8192 DUMP: read error from /dev/ad0s1a: Invalid argument: [sector -522960426]: count=512 DUMP: read error from /dev/ad0s1a: Invalid argument: [sector -522960425]: count=512 [...500+ lines of errors from dump...] The kernel reported: Jul 13 03:56:15 angel /kernel: dscheck(#ad/0x20000): negative b_blkno -1025185724 Jul 13 03:56:15 angel /kernel: dscheck(#ad/0x20000): negative b_blkno -1025185723 Jul 13 03:56:15 angel /kernel: dscheck(#ad/0x20000): negative b_blkno -1025185722 Jul 13 03:56:15 angel /kernel: dscheck(#ad/0x20000): negative b_blkno -1025185721 I would assume this means that the harddrive has bad blocks, if it weren't for the negative block/sector numbers. Could this mean that something is wrong with the partition information, or is this normal when a drive fails? I still have a (known good) dump from yesterday available. I guess the current dump will be of questionable value, given there might be errors in the data. I guess the best thing is to: *] buy a new drive *] boot from floppy, fdisk and disklabel it *] mount the drive containing the recent backup *] restore the backups to the new drive Am I correct? This might be all obvious, but I've never had this happen and I've never actually HAD to restore from a dump; so I'd hate to mess things up, since the failing drive contains the root partition as well as a filesystem with important data. Even a short acknowledgement or mental support would be helpful. :) Thanks for your input... walter -- Walter Hop <walter@binity.com> | +31 6 24290808 | Finger for public key To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?13889337831.20010713040733>