linux-kernel - Re: [PATCH 0/4] Add ceph root filesystem functionality and documentation.

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Date:	Fri, 22 Nov 2013 10:53:21 -0600
From:	Mark Doffman <mark.doffman@...ethink.co.uk>
To:	David Dillow <dave@...dillows.org>
CC:	ceph-devel@...r.kernel.org, sage@...tank.com,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-nfs@...r.kernel.org, rob.taylor@...ethink.co.uk
Subject: Re: [PATCH 0/4] Add ceph root filesystem functionality and documentation.

On 11/21/2013 02:19 PM, David Dillow wrote:
> On Wed, 2013-11-20 at 20:13 -0600, mark.doffman@...ethink.co.uk wrote:
>> The following patch series adds the ability to use a ceph distributed
>> file system as the root device. The functionality is similar to
>> NFS root but for the ceph filesystem.
>
> Why do this in the kernel vs in the initramfs? Dracut would be a more
> appropriate place, I think, as it has support for other network root
> devices already.

I don't know if its a good idea to require an initramfs for mounting a
rootfs over the network. NFS root is currently in the kernel, and
frequently used without an initramfs.

Booting from ceph using a root device is relatively simple compared to
generating an initramfs and it has the possibility of producing smaller
images for memory constrained devices.


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