After yum update from CentOS 7.1 to 7.2. nss package version is nss-3.19.1-19.el7_2.x86_64.rpm. I want to install libvirt, but yum install libvirt says:
Error: Protected multilib versions: nss-3.19.1-18.el7.x86_64 != nss-3.19.1-19.el7_2.x86_64
Error: Protected multilib versions: numactl ......
Error: Protected multilib versions: gnutls ......
......
A lot of pakcage’s version is wrong.
Need to remember nss package affects command rpm, yum, ssh, scp ! After delete a nss package, command rpm, yum, ssh, scp all become unuseful. You need to extract libnss3.so libnssutil3.so from nss-3.19.1-18.el7.x86_64.rpm nss-util-3.19.1-4.el7_1.x86_64.rpm before delete nss and nss-utils package.
rpm2cpio nss-3.19.1-18.el7.x86_64.rpm nss-util-3.19.1-4.el7_1.x86_64.rpm | cpio -dim
rpm -e --nodeps nss nss-util nss-tools && rpm -ivh nss-*.rpm
rpm -e --nodeps nss-sysinit && rpm -ivh nss-sysinit-3.19.1-18.el7.x86_64.rpm
yum remove numactl-libs && yum -y install irqbalance
rpm -e --nodeps gnutls gnutls-dane gnutls-utils && yum -y install gnutls gnutls-dane gnutls-utils
rpm -e --nodeps device-mapper device-mapper-libs && rpm -ivh device-mapper-1.02.107-5.el7.x86_64.rpm device-mapper-libs-1.02.107-5.el7.x86_64.rpm
yum remove device-mapper-event-libs device-mapper-multipath-libs device-mapper-persistent-data # reinstall dependency packages been removed by these three package!
yum check dependencies # check package's dependency after you update packages above.