At Wed, 25 Feb 2004 01:10:35 +0900,
GOTO Masanori wrote:
> At Fri, 13 Feb 2004 06:35:47 -0200,
> Cesar Eduardo Barros wrote:
> > A simple way to avoid problems when dist-upgrading would be to check in
> > the preinst for a working bswap.
> >
> > A small precompiled static binary could
> > be added to the preinst (it doesn't even have to use a C library, see
> > http://www.muppetlabs.com/~breadbox/software/tiny/teensy.html) and run
> > to check if using the emulated opcodes won't die with SIGILL or SIGSEGV.
> 
> I think it's easier just use "uname -m".  I don't know bswap is 486
> mandatory instruction or not, so it may be wrong, though.
> 
> I think Cesar's suggestion is good idea.  Checking processor class in
> preinst and if it does not have "bswap" (so i386 class processor), we
> stop to install and warn with libc6.preinst:
> 
>     if [ "$realarch" = i386 ]
>     then
>       kernel_ver=`uname -r`
>       if dpkg --compare-versions "$kernel_ver" lt 2.4.24
>       then    
>           echo WARNING: This machine has i386 class processor.
>           echo Debian sarge and later you need to use at least a 2.4.24 
>           echo or 2.6.0 kernel on i386.  Please upgrade your kernel 
>           echo before installing glibc.
>           echo The reason is that "bswap" instruction is not supported
>           echo on i386 class processors, and newer kernel can emulate
>           echo such lacking instructions.
>           exit 1
>       fi
>     fi

I've added the above checking code.  This stops installing glibc before
upgrading kernel.  I would like to close this bug using this patch.

BTW, 

> Well newer initrd-tools module-init-tools should be in woody 
> in order to upgrade to sarge smoothly.

Is this ok?  Herbert?  Marco?  If not, I reassign this bug to such
packages.

Regards,
-- gotom


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