Is there any danger in using 32 libraries on a 64 bit system?

Question

linux

Hello everyone,
Recently I encountered the fact that it was impossible to update on the same server with telephony (centos 5), there were a lot of strange errors, but they all led to Google)
So Google says that this is due to the use of 32 bit packages. I quickly ran a script that showed me all 32-bit packages and, according to my plan, it should check whether there is the same 64-bit package, if not, then install it after deletion.
But something is scary somehow ....)
Here is the list:

aspell-0.60.3.i386
zlib-1.2.3.i386
libselinux-1.33.4.i386
libpng-1.2.10.i386
libidn-0.6.5.i386
zlib-devel-1.2.3.i386
libSM-1.0.1.i386
libXdmcp-1.0.1.i386
libXrender-0.9.1.i386
cyrus-sasl-lib-2.1.22.i386
libXfont-1.2.2.i386
perl-5.8.8.i386
nspr-4.10.8.i386
curl-7.15.5.i386
libcap-1.10.i386
audit-libs-1.8.i386
dbus-1.1.2.i386
glib2-2.12.3.i386
db4-4.3.29.i386
sqlite-3.3.6.i386
freetype-2.2.1.i386
pcre-6.6.i386
libICE-1.0.1.i386
fontconfig-2.4.1.i386
libX11-1.0.3.i386
libfontenc-1.0.2.i386
cups-libs-1.3.7.i386
ncurses-5.5.i386
libsepol-1.15.2.i386
libgpg-error-1.4.i386
libgcrypt-1.4.4.i386
libtiff-3.8.2.i386
libXext-1.0.1.i386
cairo-1.2.4.i386
postgresql-libs-8.1.23.i386
libgcc-4.1.2.i386
gnutls-1.4.1.i386
device-mapper-1.02.67.i386
krb5-libs-1.6.1.i386
mysql-devel-5.0.95.i386
python-devel-2.4.3.i386
python26-devel-2.6.8.i386
nss-3.19.1.i386
libjpeg-6b.i386
keyutils-libs-1.2.i386
expat-1.95.8.i386
dbus-libs-1.1.2.i386
dbus-glib-0.73.i386
gdbm-1.8.0.i386
readline-5.1.i386
libXau-1.0.1.i386
libXt-1.0.2.i386
ghostscript-8.70.i386
libstdc++-4.1.2.i386
e2fsprogs-libs-1.39.i386
libxml2-2.6.26.i386
mysql-5.0.95.i386
python26-libs-2.6.8.i386

Answer 1

And you are right to be afraid! I think hardly anyone will predict the behavior of the system.
If I were you, I would make a copy of the disk and deploy it on a virtual machine, and I already experimented there

Answer 2

well, make a full backup and conduct your experiments without fear and reproach.

Answer 3

What are you trying to install, what commands lead to this? I suspect that there really is no problem. And, yes, centos, like debian, works great with different architectures at the same time, the main thing is that what you install works well.