different 'sum' on three different FC3 installs
deron.meranda at gmail.com
Sun Jan 9 04:00:55 UTC 2005
On Sat, 8 Jan 2005 21:40:53 -0600 (CST), Mark Hittinger <bugs at pu.net> wrote:
> I ran into something curious. I installed FC3 on three computers with the
> same set of CD's and updated them with yum roughly at the same time.
> Afterwards I noticed that certain system binaries (for example /bin/csh and
> /bin/login) all have different 'sum' checksums on the three systems.
> The file sizes are the same.
This is a side effect of prelink (do a "man prelink"), which modifies binaries
to make them faster.
To verify that your files are okay, try
rpm -V -v tcsh
Or you could also do something like,
host1$ prelink -y /bin/tcsh >/bin/tcsh.orig
host1$ md5sum /bin/tcsh.orig
host2$ prelink -y /bin/tcsh >/bin/tcsh.orig
host2$ md5sum /bin/tcsh.orig
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