linux-raid.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Clive Messer <clive@vacuumtube.org.uk>
To: linux-raid@vger.kernel.org
Subject: Re: Confused about UUID mounting and mirrors
Date: Tue, 17 Jun 2008 17:10:31 +0100	[thread overview]
Message-ID: <1213719031.25184.40.camel@localhost.localdomain> (raw)
In-Reply-To: <4857C7FC.9000000@kmaclub.com>

On Tue, 2008-06-17 at 07:19 -0700, michael@kmaclub.com wrote:

> Using the filesystem ID doesn't work either because /dev/sda, /dev/sdb, 
> and /dev/md0 all have the same UUID since it is a mirror.  How do you 
> tell the system to mount /dev/md0 and not the individual drives which is 
> what it is trying to do now.

Michael,

I'm not sure I understand. My Fedora fstab and grub.conf uses UUID's.

The UUID on the underlying raid devices is different to the filesystem
device. eg. /dev/md0 is RAID1 comprised of /dev/sd[a-d]1

/dev/md0: UUID="d046b3c4-8f1b-4c60-8982-9621cf2ac34c" SEC_TYPE="ext2"
TYPE="ext3" LABEL="BOOT"

/dev/sda1: UUID="bb2b88b1-b1a0-c8f7-2e40-e00de48ff896" TYPE="mdraid"
/dev/sdb1: UUID="bb2b88b1-b1a0-c8f7-2e40-e00de48ff896" TYPE="mdraid" 
/dev/sdc1: UUID="bb2b88b1-b1a0-c8f7-2e40-e00de48ff896" TYPE="mdraid" 
/dev/sdd1: UUID="bb2b88b1-b1a0-c8f7-2e40-e00de48ff896" TYPE="mdraid" 

/etc/fstab:
UUID=d046b3c4-8f1b-4c60-8982-9621cf2ac34c /boot ext3 defaults 1 2

Regards

Clive
-  
Clive Messer <clive@vacuumtube.org.uk>




  reply	other threads:[~2008-06-17 16:10 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-16 17:54 Confused about UUID mounting and mirrors michael
2008-06-16 20:41 ` Michal Soltys
2008-06-16 21:29   ` michael
2008-06-16 21:38     ` David Greaves
2008-06-17  2:29       ` michael
2008-06-17  7:11         ` Michael Tokarev
2008-06-17 14:19           ` michael
2008-06-17 16:10             ` Clive Messer [this message]
2008-06-18 14:00             ` Michael Tokarev
2008-06-18 14:42               ` michael
2008-06-20  2:17               ` michael
2008-06-17 19:17         ` Peter Grandi
2008-06-17 21:37     ` Michal Soltys
2008-06-19  3:56 ` Neil Brown
2008-06-22 20:05 ` Bill Davidsen

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1213719031.25184.40.camel@localhost.localdomain \
    --to=clive@vacuumtube.org.uk \
    --cc=linux-raid@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).