From: John Robinson <john.robinson@anonymous.org.uk>
To: "Rainer Fügenstein" <rfu@oudeis.org>
Cc: linux-raid@vger.kernel.org
Subject: Re: 4x3TB raid5 - no autodetect
Date: Mon, 22 Oct 2012 15:11:11 +0100 [thread overview]
Message-ID: <508553FF.6020302@anonymous.org.uk> (raw)
In-Reply-To: <441614417.20121022155507@oudeis.org>
On 22/10/2012 14:55, Rainer Fügenstein wrote:
> I'm trying to create a RAID5 consisting of 4 3TB drives from scratch:
[...]
> - raid created using:
> # mdadm --create /dev/md0 --level=5 --metadata=1.2 --raid-devices=4 /dev/sdb1 /dev/sdc1 /dev/sdd1 /dev/sde1
> before that the raid was created without "--metadata=1.2", also didn't
> work.
>
> - on boot, dmesg says:
> md: Autodetecting RAID arrays.
> md: invalid raid superblock magic on sdb1
> md: sdb1 has invalid sb, not importing!
> md: invalid raid superblock magic on sdc1
> md: sdc1 has invalid sb, not importing!
> md: invalid raid superblock magic on sdd1
> md: sdd1 has invalid sb, not importing!
> md: invalid raid superblock magic on sde1
> md: sde1 has invalid sb, not importing!
> md: autorun ...
> md: ... autorun DONE.
[...]
>
> there's something I'm missing here - please advise.
In-kernel auto-assembly is only supported for metadata 0.90, and even
then the feature is deprecated. If you have your root filesystem on a md
array, use an initrd with mdadm in it to start it.
Cheers,
John.
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next prev parent reply other threads:[~2012-10-22 14:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-22 13:55 4x3TB raid5 - no autodetect Rainer Fügenstein
2012-10-22 14:11 ` John Robinson [this message]
2012-10-22 15:56 ` Re[2]: " Rainer Fügenstein
2012-10-22 16:14 ` Phil Turmel
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