From owner-freebsd-stable Sat Nov 9 18:58:56 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 BB5C537B401 for ; Sat, 9 Nov 2002 18:58:55 -0800 (PST) Received: from www.svzserv.kemerovo.su (www.svzserv.kemerovo.su [213.184.65.80]) by mx1.FreeBSD.org (Postfix) with ESMTP id EEBCC43E4A for ; Sat, 9 Nov 2002 18:58:53 -0800 (PST) (envelope-from eugen@kuzbass.ru) Received: from kuzbass.ru (kost [213.184.65.82]) by www.svzserv.kemerovo.su (8.12.6/8.12.5) with ESMTP id gAA2woNf011526 for ; Sun, 10 Nov 2002 09:58:51 +0700 (KRAT) (envelope-from eugen@kuzbass.ru) Message-ID: <3DCDCB60.1D1A34C2@kuzbass.ru> Date: Sun, 10 Nov 2002 09:58:40 +0700 From: Eugene Grosbein Organization: SVZServ X-Mailer: Mozilla 4.79 [en] (Win95; U) X-Accept-Language: ru,en MIME-Version: 1.0 To: stable@freebsd.org Subject: backups of SUPERBLOCK Content-Type: text/plain; charset=koi8-r Content-Transfer-Encoding: 7bit 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 Hi! 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. Is there an official way to get list of superblock backups for existing filesystem, other than backup/newfs/restore ? Eugene Grosbein To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message