Re: Raid-10 mount at startup always has problem

[Luca Berra <bluca@comedia.it>]

On Mon, Oct 29, 2007 at 11:47:19AM -0400, Doug Ledford wrote:
>On Mon, 2007-10-29 at 09:18 +0100, Luca Berra wrote:
>> On Sun, Oct 28, 2007 at 10:59:01PM -0700, Daniel L. Miller wrote:
>> >Doug Ledford wrote:
>> >>Anyway, I happen to *like* the idea of using full disk devices, but the
>> >>reality is that the md subsystem doesn't have exclusive ownership of the
>> >>disks at all times, and without that it really needs to stake a claim on
>> >>the space instead of leaving things to chance IMO.
>> >>   
>> >I've been re-reading this post numerous times - trying to ignore the 
>> >burgeoning flame war :) - and this last sentence finally clicked with me.
>> >
>> I am sorry Daniel, when i read Doug and Bill, stating that your issue
>> was not having a partition table, i immediately took the bait and forgot
>> about your original issue.
>
>I never said *his* issue was lack of partition table, I just said I
>don't recommend that because it's flaky.  The last statement I made
maybe i misread you but Bill was quite clear.

>about his issue was to ask about whether the problem was happening
>during initrd time or sysinit time to try and identify if it was failing
>before or after / was mounted to try and determine where the issue might
>lay.  Then we got off on the tangent about partitions, and at the same
>time Neil started asking about udev, at which point it came out that
>he's running ubuntu, and as much as I would like to help, the fact of
>the matter is that I've never touched ubuntu and wouldn't have the
>faintest clue, so I let Neil handle it.  At which point he found that
>the udev scripts in ubuntu are being stupid, and from the looks of it
>are the cause of the problem.  So, I've considered the initial issue
>root caused for a bit now.
It seems i made an idiot of myself by missing half of the thread, and i
even knew ubuntu was braindead in their use of udev at startup, since a
similar discussion came up on the lvm or the dm-devel mailing list (that
time iirc it was about lvm over multipath)

>> like udev/hal that believes it knows better than you about what you have
>> on your disks.
>> but _NEITHER OF THESE IS YOUR PROBLEM_ imho
>
>Actually, it looks like udev *is* the problem, but not because of
>partition tables.
you are right.

L.

-- 
Luca Berra -- bluca@comedia.it
        Communication Media & Services S.r.l.
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