Re: copy-on-write solution

We could even load the bootstrap-image into memory using cramfs, thus
eliminating the need for the CF-card to stay in the slot.

regards,

Koen

Op 15-sep-04 om 15:04 heeft Peter Vicman het volgende geschreven:

> Hi!
>
> As I mentioned few weeks ago I was investigating on some sort of
> overlay
> filesystems. Finaly I found working solution/implementation. It is
> cowloop-driver. As stated from homepage
> http://www.atconsultancy.nl/cowloop/home.html: "The cowloop-driver is a
> copy-on-write loop driver (block device) to be used on top of any other
> block driver. The cowloop-driver shields the lower driver from any
> write
> accesses. Instead, it diverts all write-accesses to an arbitrary
> regular
> file.". This means that complete root file system, which can be
> compressed
> with cloop, can be used on read-only medium (CF card, flash?, CD rom)
> without modifications and all writes are diverts to read-write file on
> temporary storage (ram). I think this method can be used to run linux
> on
> embedded devices like iPAQ to separate base filesystem (generated with
> OE),
> which doesn't change frequently, and updates to this base system,
> which are
> saved to tmp storage. I already tried it on Fedora Core 2 system and it
> works great. I will try it with latest CF images. Any comments are
> welcome.
>
> Regards,
> Peter
>
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Received on Wed Sep 15 09:18:53 2004