Re: reiser4 plugins

[David Masover]

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David Weinehall wrote:
> On Mon, Jun 27, 2005 at 02:00:49AM -0500, David Masover wrote:
> 
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>>Valdis.Kletnieks@xxxxxx wrote:
>>
>>>On Mon, 27 Jun 2005 01:27:25 CDT, David Masover said:
>>
>>[...]
>>
>>
>>>>Speaking of backup, that's another nice place for a plugin.  Imagine a
>>>>dump that didn't have to be of the entire FS, but rather an arbitrary
>>>>tree...  That might be a nice new archive format.  I know Apple already
>>>>uses something like this for their dmg packages.
>>>
>>>
>>>Hmm.. you mean like 'tar' or 'cpio' or 'pax' or 'rsync'? :) 
>>
>>No, a dmg is an OS X program installer.  It appears to be a disk image
>>of sorts.  So this is the backup idea in reverse.
> 
> 
> Yeah, disk images are really a new invention...  It's not like creating
> an arbitrarily large solid file and then doing mkfs on it would
> accomplish the same thing =)

Scroll up a little...

"Imagine a dump that didn't have to be of the entire FS, but rather an
arbitrary tree..."

Such a dump might produce the same thing as mkfs would, but it would do
it faster, maybe even copy-on-write.

The OS X example is to point out that using some chunk of an FS as an
archive format isn't necessarily a bad idea.

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