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Bug#730441: release-notes: Debian requires an i586 since at least squeeze



Control: tag -1 moreinfo

Hi Baptiste,

first of all, thanks for the reassign and the patch.

Baptiste Jammet <baptiste@mailoo.org> (2014-02-15):
> Control: reassign -1 installation-guide

Please cc maintainers when reassigning, otherwise the mail isn't sent to
them. Also, please always cc bug submitters (debbugs doesn't do that on
its own).

> I'm reassigning this bug because these words are from
> installation-guide, and note from RN.
> 
> Dixit Samuel Bronson, le 24/11/2013 :
> 
> >Looking at <http://bugs.debian.org/609690>, it seems that gcc has been
> >defaulting to -march=i586 at least since squeeze, or r4557 in the GCC
> >packaging SVN [1].
> >
> >This would seem to indicate that you now need at least a 586 to run
> >Debian.
> >
> >However, section 2.1.2.1 CPU of the release notes still says:
> >
> >> However, Debian GNU/Linux wheezy will not run on 386 or earlier
> >> processors. Despite the architecture name "i386", support for actual
> >> 80386 processors (and their clones) was dropped with the Sarge
> >> (r3.1) release of Debian[2]. (No version of Linux has ever supported
> >> the 286 or earlier chips in the series.) All i486 and later
> >> processors are still supported[3].
> 
> I'd like to add that, despite the fact that gcc has been defaulting to
> -march=i586, I succesfully installed wheezy 7.3 inside
> "qemu-system-i386 -cpu 486". 
> (I've only chosen base install and did not make more tests.)
> 
> >This should be updated.
> 
> You can find attached a proposed wording for 
> d-i/trunk/manual/en/hardware/supported/i386.xml
> 
> Baptiste

> Index: d-i/trunk/manual/en/hardware/supported/i386.xml
> ===================================================================
> --- d-i/trunk/manual/en/hardware/supported/i386.xml	(r??vision 69081)
> +++ d-i/trunk/manual/en/hardware/supported/i386.xml	(copie de travail)
> @@ -36,8 +36,9 @@
>  </para>
>  
>  </footnote>. (No version of Linux has ever supported the 286 or earlier
> -chips in the series.)  All i486 and later processors are still
> -supported<footnote>
> +chips in the series.)  Since the Squeeze release (6.0), gcc uses i586 as default arch ; 
> +this means that all i586 and later processors are supported. Debian could still run on i486 
> +processors (and their clones), but some packages may not run as expected<footnote>
>  
>  <para>

FWIW, there's also:
  https://lists.debian.org/debian-gcc/2011/11/msg00073.html

We could probably update the squeeze section, but it might make sense
to keep that open until jessie's fate is decided; tagging moreinfo
accordingly.

(If someone wants to commit and close this bug report, please clone it
first to keep track of jessie's future.)

Mraw,
KiBi.

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