Recently, when installing Python3 from the AIX toolbox using YUM, we encountered the following error situation:
# yum install python3 ... --> Finished Dependency Resolution Error: Package: python3-3.7.1-1.ppc (AIX_Toolbox) Requires: libssl.a(libssl.so.1.0.2) Error: Package: python3-3.7.1-1.ppc (AIX_Toolbox) Requires: libcrypto.a(libcrypto.so.1.0.2) You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest #
Python3 requires version 1.0.2 of libssl.so and libcrypto.so, but the two libraries cannot be found. These two libraries can either be provided via the RPM package openssl, in the appropriate version, or via AIX. When the AIX toolbox is used, the openssl package is typically not installed, and the AIX OpenSSL libraries are used. Therefore, in our case, the OpenSSL RPM package is not installed. The libraries are then made available by BFF packages of the AIX operating system.
The information about which libraries are made available by AIX is provided via the virtual RPM package AIX-rpm:
# rpm -q --provides AIX-rpm | egrep "lib(ssl|crypto)" libcrypto.a(libcrypto.so) libcrypto.a(libcrypto.so.0.9.8) libcrypto.a(libcrypto.so.1.0.0) libcrypto.a(libcrypto64.so) libcrypto.a(libcrypto64.so.0.9.8) libcrypto.a(libcrypto64.so.1.0.0) libcrypto.so.0.9.7 libcrypto_compat.a(libcrypto.so) libcrypto_compat.a(libcrypto.so.0.9.8) libcrypto_compat.a(libcrypto64.so) libcrypto_compat.a(libcrypto64.so.0.9.8) libssl.a(libssl.so) libssl.a(libssl.so.0.9.8) libssl.a(libssl.so.1.0.0) libssl.a(libssl64.so) libssl.a(libssl64.so.0.9.8) libssl.a(libssl64.so.1.0.0) libssl3.a(libssl3.so) libssl3.so libssl_compat.a(libssl.so) libssl_compat.a(libssl.so.0.9.8) libssl_compat.a(libssl64.so) libssl_compat.a(libssl64.so.0.9.8) #
The output shows that versions 0.9.8 and 1.0.0 of the two required libraries are known to the AIX-rpm package, but the required version 1.0.2 is apparently not available. We take a quick look at the associated archive /usr/lib/libssl.a (or /usr/lib/libcrypto.a):
# ar -X any t /usr/lib/libssl.a libssl.so libssl.so.0.9.8 libssl.so.1.0.0 libssl.so.1.0.2 libssl.so libssl.so.0.9.8 libssl.so.1.0.0 libssl.so.1.0.2 libssl64.so libssl64.so.0.9.8 libssl64.so.1.0.0 #
The archive obviously also provides version 1.0.2. This information is not provided by the AIX-rpm RPM package. This is because a newer version of openssl.base has obviously been installed, but the AIX-rpm package has not been updated. The RPM package currently has the following version:
# rpm -q AIX-rpm AIX-rpm-7.1.5.15-6.ppc #
We update the package now with the command updtvpkg (update virtual package):
# updtvpkg Please wait... # # rpm -q AIX-rpm AIX-rpm-7.1.5.30-7.ppc #
The version number has now changed from 7.1.5.15-6 to 7.1.5.30-7! We can again display which libraries are provided by AIX via AIX rpm:
# rpm -q --provides AIX-rpm | egrep "lib(ssl|crypto)" libcrypto.a(libcrypto.so) libcrypto.a(libcrypto.so.0.9.8) libcrypto.a(libcrypto.so.1.0.0) libcrypto.a(libcrypto.so.1.0.2) libcrypto.a(libcrypto64.so) libcrypto.a(libcrypto64.so.0.9.8) libcrypto.a(libcrypto64.so.1.0.0) libcrypto.so libcrypto.so.0.9.7 libcrypto.so.1.0.0 libcrypto_compat.a(libcrypto.so) libcrypto_compat.a(libcrypto.so.0.9.8) libcrypto_compat.a(libcrypto64.so) libcrypto_compat.a(libcrypto64.so.0.9.8) libssl.a(libssl.so) libssl.a(libssl.so.0.9.8) libssl.a(libssl.so.1.0.0) libssl.a(libssl.so.1.0.2) libssl.a(libssl64.so) libssl.a(libssl64.so.0.9.8) libssl.a(libssl64.so.1.0.0) libssl.so libssl.so.1.0.0 libssl3.a(libssl3.so) libssl3.so libssl_compat.a(libssl.so) libssl_compat.a(libssl.so.0.9.8) libssl_compat.a(libssl64.so) libssl_compat.a(libssl64.so.0.9.8) #
After the update of the virtual package AIX-rpm, the RPM database now also contains the version 1.0.2 of libssl.so and libcrypto.so.
The installation of Python3 is now successful:
# yum install python3 ... Is this ok [y/N]: y ... Installed: python3.ppc 0:3.7.1-1 Dependency Installed: bzip2.ppc 0:1.0.6-3 expat.ppc 0:2.2.4-1 info.ppc 0:6.4-1 libffi.ppc 0:3.2.1-3 libstdc++.ppc 0:6.3.0-2 ncurses.ppc 0:6.1-2 Dependency Updated: readline.ppc 0:7.0-5 Complete! #
Therefore, do not forget to update AIX-rpm when updating BFF packages!