[Gllug] Loopback mountable image file compression.

[Phillip Lougher]

Richard Jones <rich <at> annexia.org> writes:

> 
> On Sat, Aug 22, 2009 at 09:12:06AM +0100, James Laver wrote:
> > I gather SquashFS is faster but less efficient at compression. I've  
> > noticed it's quite popular with non-knoppix liveCDs. There's also  
> > SquashFS-lzma you should look out for but I've not tested it, I've no  
> > idea about it's attributes or even it's stability.
> 
> SquashFS is completely irrelevant to this discussion.
> 
> Rich.
> 

Actually Squashfs isn't completely irrelevant to this discussion.  You can
put a filesystem image inside a SquashFS filesystem, it will be compressed
by SquashFS, and the filesystem can be loopback mounted.

In fact that's what the Fedora liveCD does, it has a SquashFS filesystem
that contains exactly one file, an ext3 filesystem image.

Phillip

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