From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vernon Tonnesen Subject: http://raid.wiki.kernel.org/ unreachable - need to "lend" clone of RAID1 HD to another machine Date: Sat, 23 Apr 2011 21:51:16 -0400 Message-ID: <4DB38214.4080003@earthlink.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids I've been trying to get through without success for over an hour. Is the content there mirrored somewhere? Is there an alternate, preferably in FAQ format? I have a pair of HDs partitioned with 14 identical partitions each, 7 of which on each make up 1 of 2 partitions making up 7 md devices. The seven md devices were originally configured through openSUSE installation's YaST2. I made a clone of the whole of one HD. This clone I want to attach to another machine simply to copy the files from one partition's EXT3 filesystem that is a component of md7 on the original machine. Can I just mount that partition on the other machine RO as an ordinary EXT3 partition to make the copies, or does that machine need to have a RAID "built" or "rebuilt" with mdadm in order to mount that disks partition as a degraded array? Nothing shows up in /dev/mdstat booting with it plugged in, even after copying /etc/mdadm.conf from the original machine. I tried modprobe raid1, but that didn't seem to affect anything I can tell. Fdisk -l /dev/sdb shows me only what I expect, a bunch of 0x83 and 0xfd partitions, while fdisk -l produces none of the extra output I'm used to seeing on the system with the full RAID1 running. Problem 2: Looking at the mdadm man page, I really don't understand the distinction between build and create, or what a persistent superblock is good for. Help please! -- The husband should fulfill his marital duty to his wife, and likewise the wife to her husband. 1 Corinthians 7:3 NIV VT