From owner-freebsd-hackers@FreeBSD.ORG Fri Oct 28 09:50:48 2005 Return-Path: X-Original-To: freebsd-hackers@freebsd.org Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 69E2416A41F for ; Fri, 28 Oct 2005 09:50:48 +0000 (GMT) (envelope-from rwatson@FreeBSD.org) Received: from cyrus.watson.org (cyrus.watson.org [209.31.154.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 17C3E43D78 for ; Fri, 28 Oct 2005 09:50:45 +0000 (GMT) (envelope-from rwatson@FreeBSD.org) Received: from fledge.watson.org (fledge.watson.org [209.31.154.41]) by cyrus.watson.org (Postfix) with ESMTP id 122DC46B7B; Fri, 28 Oct 2005 05:50:44 -0400 (EDT) Date: Fri, 28 Oct 2005 10:50:43 +0100 (BST) From: Robert Watson X-X-Sender: robert@fledge.watson.org To: Matt Emmerton In-Reply-To: <002a01c5db7c$6817e030$1200a8c0@gsicomp.on.ca> Message-ID: <20051028105015.K20147@fledge.watson.org> References: <002a01c5db7c$6817e030$1200a8c0@gsicomp.on.ca> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Cc: freebsd-hackers@freebsd.org Subject: Re: RFC: porting NetBSD fsdb enhancements to FreeBSD X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 28 Oct 2005 09:50:48 -0000 On Fri, 28 Oct 2005, Matt Emmerton wrote: > Recently I've had to do some low-level surgery on some disks that have > gone bad in order to recover some of the data. This has required me to > zero out blocks on disk, patch up the affected files, and pull the data > off the disks. > > I was toying around the with fsdb tool, but couldn't figure out a way to > map blocks to inodes (although the 'blocks' command does the mapping in > the other direction quite nicely.) > > Poking around I found that someone has added this functionality (via a > "findblk" command) to NetBSD's fsdb (back in 2003!), which I have > grafted onto a 4.x box here with relative ease. > > NetBSD Mailing List Posting: > http://groups.google.com/group/mailing.netbsd.tech.userlevel/browse_thread/thread/18acceb04cf5aadb/2a891d67edf9279%232a891d67edf9279?sa=X&oi=groupsr&start=0&num=3) > NetBSD CVS: > http://cvsweb.netbsd.org/bsdweb.cgi/src/sbin/fsdb/fsdb.c.diff?r1=1.24&r2=1.25&f=h > > Is this something that folks would like to see on FreeBSD? I've got > RELENG_5_4 and RELENG_6_0 boxes here in my office so I can whip up the > patches and do some testing in short order. I'm sure if you submit a patch in a PR, we can find someone willing to get it committed. Robert N M Watson