RPM(RHEL 5) パッケージに基づいて OpenLDAP バージョンを 2.3.x から 2.4.11 以降に更新する方法

Question

私は RHEL 5 オペレーティング システムを使用しており、OpenLDAP バージョンを 2.3.x から 2.4.11 以上にアップデートしたいので、インストール パッケージに基づいて OpenLDAP (v 2.3.x) をインストールしました。

まずOpenLDAPパッケージを削除するために次のコマンドを使用しました

rpm -e --allmatches openldap

しかし、失敗し、次の出力が表示されました。

error: Failed dependencies:
        liblber-2.3.so.0()(64bit) is needed by (installed) autofs-5.0.1-0.rc2.143.el5.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) cyrus-sasl-2.1.22-5.el5_4.3.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) sendmail-8.13.8-8.el5.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) nss_ldap-253-25.el5.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) sudo-1.7.2p1-5.el5.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) apr-util-1.2.7-11.el5.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) python-ldap-2.2.0-2.1.x86_64
        liblber-2.3.so.0()(64bit) is needed by (installed) subversion-1.4.2-4.el5_3.1.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) libuser-0.54.7-2.1.el5_4.1.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) nfs-utils-lib-1.0.8-7.6.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) gnupg-1.4.5-14.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) cyrus-sasl-2.1.22-5.el5_4.3.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) sendmail-8.13.8-8.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) nss_ldap-253-25.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) sudo-1.7.2p1-5.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) GConf2-2.14.0-9.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) nfs-utils-1.0.9-44.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) cups-1.3.7-18.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) apr-util-1.2.7-11.el5.x86_64
        libldap-2.3.so.0()(64bit) is needed by (installed) subversion-1.4.2-4.el5_3.1.x86_64
        libldap_r-2.3.so.0()(64bit) is needed by (installed) autofs-5.0.1-0.rc2.143.el5.x86_64
        libldap_r-2.3.so.0()(64bit) is needed by (installed) python-ldap-2.2.0-2.1.x86_64
        openldap is needed by (installed) nfs-utils-lib-1.0.8-7.6.el5.x86_64
        openldap is needed by (installed) sendmail-8.13.8-8.el5.x86_64
        openldap >= 2.1.22 is needed by (installed) python-ldap-2.2.0-2.1.x86_64
        liblber-2.3.so.0 is needed by (installed) nss_ldap-253-25.el5.i386
        liblber-2.3.so.0 is needed by (installed) apr-util-1.2.7-11.el5.i386
        liblber-2.3.so.0 is needed by (installed) subversion-1.4.2-4.el5_3.1.i386
        libldap-2.3.so.0 is needed by (installed) nss_ldap-253-25.el5.i386
        libldap-2.3.so.0 is needed by (installed) GConf2-2.14.0-9.el5.i386
        libldap-2.3.so.0 is needed by (installed) apr-util-1.2.7-11.el5.i386
        libldap-2.3.so.0 is needed by (installed) subversion-1.4.2-4.el5_3.1.i386

依存パッケージをすべて削除すると、RHEL 5 がクラッシュするのではないかと心配しています。これに対するより良い解決策があれば教えてください。