Hi: Porting Cramfs on FreeBSD

Oliver Fromme olli at lurza.secnetix.de
Wed Sep 27 10:46:36 PDT 2006

Eric Anderson wrote:
 > I'm currently working on a tarfs, that will do something similar to 
 > this, except it allows you to use a regular tar file as the file system 
 > image.

That's cool.  I'm looking forward to it.

 > I don't have compression working yet, but that is on the 
 > roadmap. [...] large file system sizes (based on available
 > memory)

Hm.  Does that mean that the whole (uncompressed) FS image
will have to fit into memory?  That would be a disadvantage
compared to cramfs.  Cramfs doesn't compress the whole FS
as one object (like .tar.gz), but it compresses it page-by-
page, so every page can be uncompressed independently, and
memory usage is very low, which is good for small embedded

Best regards

Oliver Fromme,  secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing
Dienstleistungen mit Schwerpunkt FreeBSD: http://www.secnetix.de/bsd
Any opinions expressed in this message may be personal to the author
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"... there are two ways of constructing a software design:  One way
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the other way is to make it so complicated that there are no _obvious_
deficiencies."        -- C.A.R. Hoare, ACM Turing Award Lecture, 1980

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