Date: Wed, 22 Jun 2016 14:13:02 -0300 From: "Matias A. Fonzo" <selk@...gora.org> To: musl@...ts.openwall.com Subject: Re: New Exherbo+musl stage: x86_64-pc-linux-musl-20160621 Hi Dalias, El Wed, 22 Jun 2016 12:37:01 -0400 Rich Felker <dalias@...c.org> escribió: > On Wed, Jun 22, 2016 at 12:20:30PM -0300, Matias A. Fonzo wrote: > > El Wed, 22 Jun 2016 14:01:17 +0200 > > Shiz <hi@...z.me> escribió: > > > > On 22 Jun 2016, at 01:22, Matias A. Fonzo <selk@...gora.org> > > > > wrote: > > > >> The latest musl stage can always be found at: > > > >> https://www.somasis.com/stages/exherbo-x86_64-pc-linux-musl-current.tar.xz > > > > > > > > Please, consider switching to another format, like lzip/clzip. > > > > See: > > > > > > > > http://www.nongnu.org/lzip/xz_inadequate.html > > > > > > Switching to a format almost nobody has a decompressor for, > > > especially for something like a stage3 that is often extracted in > > > a live environment with no options to extra install packages, > > > doesn’t seem like a good idea. > > > > > > - Shiz > > > > Distribute files and impose to your users in having xz, is a bad > > idea. > > Decompressing xz is supported by busybox and internally by busybox tar > and gnu tar, so I don't see any practical risk of the user not having > support. On the other hand, nobody has ever heard of lzip or clzip and > they're certainly not supported in the widely available tools. GNU Tar has support for lzip, Star from Solaris, too. And there's a patch to include full lzip support in busybox: http://download.savannah.gnu.org/releases/lzip/busybox/ http://savannah.c3sl.ufpr.br//lzip/busybox/README_busybox_lzip_patch Lzip was created *before* than xz, as a replacement for the old "lzma-alone". Quote from http://lzip.nongnu.org/xz_inadequate.html : "Then, why some free software projects use xz? Because evaluating formats is difficult and most free software projects are not concerned about long-term archiving, or even about format quality. Therefore they tend to use the most hyped formats. Both lzma-alone and xz have gained some popularity in spite of their defects mainly because they are associated to the popular 7-zip archiver. This of course is sad because we software developers are among the few people who are able to understand the strengths and weaknesses of formats. We have a moral duty to choose wisely the formats we use because everybody else will blindly use whatever formats we choose." > For a compression format (from the perspective of the party doing the > decompression), the only technical details that are relevant are the > compression ratios and the memory and time requirements for > decompressing. > > Rich -- GPG pub ID = 0x3AAF1CEC203A99D5 Key servers = hkps.pool.sks-keyservers.net - keys.gnupg.net Key fingerprint = 35BD B9D4 6B56 B5FA CB64 7C9B 3AAF 1CEC 203A 99D5 Content of type "application/pgp-signature" skipped
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