From owner-freebsd-stable Sat Nov 9 19: 1:51 2002 Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 25D3837B401 for ; Sat, 9 Nov 2002 19:01:50 -0800 (PST) Received: from bunrab.catwhisker.org (adsl-63-193-123-122.dsl.snfc21.pacbell.net [63.193.123.122]) by mx1.FreeBSD.org (Postfix) with ESMTP id 69F2343E42 for ; Sat, 9 Nov 2002 19:01:49 -0800 (PST) (envelope-from david@catwhisker.org) Received: from bunrab.catwhisker.org (localhost [127.0.0.1]) by bunrab.catwhisker.org (8.12.6/8.12.6) with ESMTP id gAA31nG8023990; Sat, 9 Nov 2002 19:01:49 -0800 (PST) (envelope-from david@bunrab.catwhisker.org) Received: (from david@localhost) by bunrab.catwhisker.org (8.12.6/8.12.6/Submit) id gAA31nfF023989; Sat, 9 Nov 2002 19:01:49 -0800 (PST) Date: Sat, 9 Nov 2002 19:01:49 -0800 (PST) From: David Wolfskill Message-Id: <200211100301.gAA31nfF023989@bunrab.catwhisker.org> To: eugen@kuzbass.ru, stable@FreeBSD.ORG Subject: Re: backups of SUPERBLOCK In-Reply-To: <3DCDCB60.1D1A34C2@kuzbass.ru> Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >Date: Sun, 10 Nov 2002 09:58:40 +0700 >From: Eugene Grosbein >Recently I suffered from unstable power supply, after reboot >fsck said INCORRECT SUPER BLOCK, BAD MAGIC etc. etc. >I managed to revive filesystem using fsck -b 32 as I remember >that first copy of superblock is generally located at block 32. >I wonder, however, how can I know complete list of superblocks >for all of my filesystems. One can write down the list >when (if) uses newfs but it's hard if a drive is prepared during initial >installation and it's impossible if a drive was prepared using sysinstall >while in muliuser. See the -N flag for newfs. Cheers, david (links to my resume at http://www.catwhisker.org/~david) -- David H. Wolfskill david@catwhisker.org To paraphrase David Hilbert, there can be no conflicts between the discipline of systems administration and Microsoft, since they have nothing in common. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message