Re: [debian-knoppix] Build Question

[knopper@linuxtag.org (Klaus Knopper)]

On Mon, Jan 13, 2003 at 02:52:07PM -0800, Rib Rdb wrote:
> A question I've often seen people asking is why their
> remastered knoppix cd's run slower than knoppix. 
> People usually respond saying that Klaus uses a
> special ordering of the files in the KNOPPIX cloop
> file.  When people ask how to generate the sort file,
> I've never seen a response.  Am I just missing
> something? If so, where is the answer.  If not, is
> there a reason that Klaus won't tell us how he does it?

There is no special reason, except that some readers may find it
confusing and obscure, but no magic is involved. The ordering
is still not as good as it should be, and I doubt that it makes
a significant difference. The proper way would be tracing all
open() calls in the kernel and gernerating the list from there,
but I found no convenient way to do this yet.

Currently I use the file access times as sorting criteria, which
may not always give the best results. Attached is an example script.
Your mileage may vary.

Regards
-Klaus Knopper

#!/bin/sh
find / -anewer /KNOPPIX.build/mkisofs.timestamp -not \( -type d -o -path /KNOPPIX.build\* -o -path /tmp\* -o -path /proc/\* -o -path /mnt/\* \) -printf '%p	%A@\n' | sort -rn +1 -t'	' | awk -F'	' '{print $1 "	" ++i}' > /KNOPPIX.build/mkisofs.sort

echo "/bin/mkdir	10090" >> /KNOPPIX.build/mkisofs.sort
echo "/bin/chown	10080" >> /KNOPPIX.build/mkisofs.sort
echo "/bin/cp	10070" >> /KNOPPIX.build/mkisofs.sort
echo "/bin/ln	10060" >> /KNOPPIX.build/mkisofs.sort
echo "/bin/rm	10050" >> /KNOPPIX.build/mkisofs.sort
echo "/dev/*	20000" >> /KNOPPIX.build/mkisofs.sort
echo "/etc/*	30000" >> /KNOPPIX.build/mkisofs.sort