[CentOS-mirror] 5.6 is coming closer
Claire M. Connelly
cmc at math.hmc.edu
Wed Apr 6 15:21:07 EDT 2011
"PS" == Paul Stewart <pstewart at nexicomgroup.net>
Paul,
PS> Could someone please explain the "bit flips" ? Sorry, I
PS> haven't taken any time to understand this .. is it just a
PS> matter of the correct rsync command switches?
PS> In our rsync crontab we have:
PS> # CENTOS Mirror 01 * * * * www-data /usr/bin/rsync -rtlzv
PS> --delete rsync://mirror.steadfast.net/centos/ /var/centos/
You should be using the -p flag to preserve permissions, which
will change the permissions over when they're changed upstream.
(We use
-vaH ${EXCLUDES} --numeric-ids \
--delay-updates \
--delete --delete-after
the -a flag includes -rlptgoD; -H preserves hard links, which is
-also desirable.)
Some distros (like Fedora) do the staging behind a restricted
directory and then ask mirrors to do the bitflip at a particular
time by changing the permissions by hand or with a cron or at job,
but CentOS appears to be propagating the bitflip through the
mirror network instead.
Claire
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Claire Connelly cmc at math.hmc.edu
System Administrator (909) 621-8754
Department of Mathematics Harvey Mudd College
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For System News: http://www.math.hmc.edu/computing/news/
or http://twitter.com/hmcmathcomp/.
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