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List:       evms-devel
Subject:    Re: [Evms-devel] Pre-Announce for EVMS 2.3.2
From:       Kevin Corry <kevcorry () us ! ibm ! com>
Date:       2004-04-26 16:31:09
Message-ID: 200404261131.09291.kevcorry () us ! ibm ! com
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On Monday 26 April 2004 02:22, John Huttley wrote:
> Yes, ok, I'm a dork
>
> Upgrade to 2.6.5-mm6 and apply the other (not 00001.patch)  patches.
> Then the dm-orgin patch and the bd-claim patch. Then it works.

Yes, there's extra patches needed to use snapshots on 2.6 kernels. I guess I 
assumed you had already applied those. :)  Full instructions for downloading 
packages and patches and building the kernel are always available at
http://evms.sf.net/install/

> I find myself surprised that the gui had the options for snapshot when
> so much was missing.
> no matter. Kevin and The Team are on it. So is andrew, I guess.
> lets hope it goes into 2.6.6.!

It's kind of tough to figure out whether the snapshot module is available. 
There's some new ioctl commands to get the list of currently loaded DM 
targets, but there's also the possibility that the module simply isn't loaded 
yet. I'll have to think a bit about how to check for that, and try to prevent 
creating snapshots if the kernel side isn't available.

And unfortunately, I don't think the snapshot code will be in the mainline 
kernel for a bit.

-- 
Kevin Corry
kevcorry@us.ibm.com
http://evms.sourceforge.net



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