Messages in this thread | | | Date | Mon, 25 Sep 2006 08:47:30 -0700 | From | "H. Peter Anvin" <> | Subject | Re: Smaller compressed kernel source tarballs? |
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Paulo Marques wrote: > H. Peter Anvin wrote: >> Michael Tokarev wrote: >>> [...] >>> On the site it's said lzma(sdk) is under rewrite to support >>> new format with magic number and crc checks... >> >> That is an absolute must, IMO. I would use the gzip format as a base. > > If you're suggesting a gzip like format (but with different magic, > etc.), that's ok. > > However, it has been suggested on similar threads to use the CM field of > the gzip format to introduce different compression methods. > > While this is the purpose of this field, I find this to be a very bad > idea. The worse part of it is that, after "lzma gzip" files start to > proliferate, you never know if you can decompress a .gz with your > version of gunzip, which is something that you currently have for granted. > > If more formats start being supported inside gzip, this only gets worse... >
Doesn't mean that one should name the files .gz.
A more significant reason to not do this is that I think there are a lot of programs out where which only check the magic number and not the compression format.
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