At Fri, 17 Dec 2010 20:23:36 +0200 CentOS mailing list <centos@xxxxxxxxxx> wrote:
>
> Good day,
>
> What will happen if on x86_64 some i386 rpms get installed, please.
Depends. It is in fact *normal* for i[3456]86 *libraries* to be
installed on a CentOS/RHEL x86_64 system (many are installed by
default). It is possible to also install i[3456]86 *programs* as well,
and this works just fine, since A) the x86_64 kernel/program loader is
just as happy to run 32-bit programs as to run 64-bit programs and B)
the various i[3456]86 *libraries* are also generally (or can be)
installed. Installing a i686 *kernel* or *kernel module* is pretty
much useless, unless you reboot with the 32-bit kernel. At which point
your *64-bit* programs won't work :-(. You don't want to do that. For
some programs/packages, installing the 32-bit version might be ill
advised, but I don't think things will necessarily break.
What you should *not* do is try to upgrade a 32-bit OS to 64-bit: you
should *always* do a 'fresh install' if/when you do that. Make a backup of
your /etc and /home and maybe things like /var/www and /var/ftp, dump
your MySQL/Progress/OpenLDAP databases, etc., unless that stuff is on a
separate file system.
> Thanks
> Johan
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>
--
Robert Heller -- 978-544-6933 / heller@xxxxxxxxxxxx
Deepwoods Software -- http://www.deepsoft.com/
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