Date: Sun, 29 Jun 2003 20:59:02 -0400
From: rmoser <mlmoser@comcast.net>
Subject: Re: File System conversion -- ideas
In-reply-to: <20030630002527.GA26094@delft.aura.cs.cmu.edu>
To: Jan Harkes <jaharkes@cs.cmu.edu>, linux-kernel@vger.kernel.org
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*********** REPLY SEPARATOR  ***********

On 6/29/2003 at 8:25 PM Jan Harkes wrote:

>On Sun, Jun 29, 2003 at 04:29:45PM -0400, rmoser wrote:
>> NO!  You're not getting the point at all!
>>
>> You don't need a pair!  If you have 10 filesystems, you need 10 sets of
>> code in each direction, not 90.  You convert from the data/metadata set
>> in the first filesystem to a self-contained atom, and then back from the
>> atom to the data/metadata set in the new filesystem.  The atom is object
>> oriented, so anything that can't be moved over--like ACLs or Reiser4's
>> extended attributes that nobody else has, or permissions if converting to
>> vfat--is just lost.  Note that if the data has an attribute like
>"Compressed"
>> or "encrypted", it is expanded/decrypted and thus brought back to its
>> natural form before being stuffed into an atom.
>
>I typically call that 'tar' and it works great whenever I want to
>convert from one filesystem to another. I just haven't got a clue why
>you want to implement tar (or cpio) in the kernel as the userspace
>implementation is already pretty usable.
>

tar --inplace --fs-convert --targetfs=reiserfs /dev/hda1

.......  it doesn't like it

>Jan
>
>-
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