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Date: Tue, 24 Sep 2002 11:37:04 -0700
From: Marc Singer <elf@buici.com>
To: Kenneth Johansson <kenneth.johansson@etx.ericsson.se>
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Subject: Re: Interest in DOC and YAFFS? --> YAFFS bootloading
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On Tue, Sep 24, 2002 at 07:44:58PM +0200, Kenneth Johansson wrote:
> On Tue, 2002-09-24 at 19:14, Marc Singer wrote:
> > That's what isn't clear.  I made two filesystems with the same
> > contents.  One cramfs and the other ext2.  The ext2 filesystem
> > compressed was smaller than the cramfs.  My understanding is that both
> > must be uncompressed into a ramfs to be used.  If this is correct,
> > then the only comparable consideration is the size of the compressed
> > data.
> 
> cramfs is a read only filesystem not an archive format like zip or tar
> so you do not have to copy the data into another filesystem to use it.
> You use cramfs instead of initrd+filesystem.

That isn't really the issue here.  We're talking about using gzip'd
ext2 versus cramfs to do initrd.  The thing is that in my tests,
cramfs images are larger than compressed ext2 images.  Not what I
would expect.