From owner-freebsd-hackers Mon Feb 17 08:19:43 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id IAA24905 for hackers-outgoing; Mon, 17 Feb 1997 08:19:43 -0800 (PST) Received: from haldjas.folklore.ee (Haldjas.folklore.ee [193.40.6.121]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id IAA24339 for ; Mon, 17 Feb 1997 08:10:27 -0800 (PST) Received: from localhost (narvi@localhost) by haldjas.folklore.ee (8.8.4/8.8.4) with SMTP id SAA19668; Mon, 17 Feb 1997 18:06:05 +0200 (EET) Date: Mon, 17 Feb 1997 18:06:05 +0200 (EET) From: Narvi To: Luigi Rizzo cc: Michael Smith , hackers@FreeBSD.ORG Subject: Re: File system/disk recovery tools ? In-Reply-To: <199702171214.NAA02971@labinfo.iet.unipi.it> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Mon, 17 Feb 1997, Luigi Rizzo wrote: > [about fs recovery] > > > dd the whole disk off onto a file and mount it on a vnode? You might > > unfortunately is 1.6GB ... I need to find a bigger unit! > > > have to reconstruct the label and such, and using fsck's '-b' option > > actually an annoying thing with fsck -b is that I never know what > to use as an alternate superblock number. 32, says the manpage, is > an alternate superblock, but what are others ? I guess they depend Hmmm.... I may be wrong (luckily I have never had to repair so broken a disk) but doesn't newfs output them during the fs creation phase? Sander > upon the geometry of the disk... is there a "magic" number that I > can look for ? > > Thanks > Luigi > -----------------------------+-------------------------------------- > Luigi Rizzo | Dip. di Ingegneria dell'Informazione > email: luigi@iet.unipi.it | Universita' di Pisa > tel: +39-50-568533 | via Diotisalvi 2, 56126 PISA (Italy) > fax: +39-50-568522 | http://www.iet.unipi.it/~luigi/ > _____________________________|______________________________________ >