[1] After installing CentOS, Update the system first if possible.
[root@dlp ~]# yum -y update Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: ftp.iij.ad.jp * extras: ftp.iij.ad.jp * updates: ftp.iij.ad.jp Resolving Dependencies --> Running transaction check ---> Package NetworkManager.x86_64 1:0.9.9.1-13.git20140326.4dba720.el7 will be updated ---> Package NetworkManager.x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 will be an update ... ... ... --> Finished Dependency Resolution Dependencies Resolved =========================================================================================================== Package Arch Version Repository Size =========================================================================================================== Installing: kernel x86_64 3.10.0-123.4.2.el7 updates 29 M Updating: NetworkManager x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 updates 1.4 M NetworkManager-glib x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 updates 369 k NetworkManager-tui x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 updates 190 k gnutls x86_64 3.1.18-9.el7_0 updates 609 k json-c x86_64 0.11-4.el7_0 updates 31 k kernel-tools x86_64 3.10.0-123.4.2.el7 updates 669 k kernel-tools-libs x86_64 3.10.0-123.4.2.el7 updates 609 k kexec-tools x86_64 2.0.4-32.el7.centos.1 updates 320 k libtasn1 x86_64 3.3-5.el7_0 updates 316 k mariadb-libs x86_64 1:5.5.37-1.el7_0 updates 752 k microcode_ctl x86_64 2:2.1-7.1.el7_0.1 updates 488 k openssl x86_64 1:1.0.1e-34.el7_0.3 updates 705 k openssl-libs x86_64 1:1.0.1e-34.el7_0.3 updates 939 k selinux-policy noarch 3.12.1-153.el7_0.10 updates 340 k selinux-policy-targeted noarch 3.12.1-153.el7_0.10 updates 3.8 M tuned noarch 2.3.0-11.el7_0.3 updates 145 k tzdata noarch 2014e-1.el7_0 updates 433 k Transaction Summary =========================================================================================================== Install 1 Package Upgrade 17 Packages Total download size: 41 M ... ... ... Verifying : kernel-tools-libs-3.10.0-123.el7.x86_64 34/35 Verifying : 1:NetworkManager-tui-0.9.9.1-13.git20140326.4dba720.el7.x86_64 35/35 Installed: kernel.x86_64 0:3.10.0-123.4.2.el7 Updated: NetworkManager.x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 NetworkManager-glib.x86_64 1:0.9.9.1-2 NetworkManager-tui.x86_64 1:0.9.9.1-23.git20140326.4dba720.el7_0 gnutls.x86_64 0:3.1.18-9.el7_0 json-c.x86_64 0:0.11-4.el7_0 kernel-tools.x86_64 0:3.10.0-123.4.2.e kernel-tools-libs.x86_64 0:3.10.0-123.4.2.el7 kexec-tools.x86_64 0:2.0.4-32.el7.cent libtasn1.x86_64 0:3.3-5.el7_0 mariadb-libs.x86_64 1:5.5.37-1.el7_0 microcode_ctl.x86_64 2:2.1-7.1.el7_0.1 openssl.x86_64 1:1.0.1e-34.el7_0.3 openssl-libs.x86_64 1:1.0.1e-34.el7_0.3 selinux-policy.noarch 0:3.12.1-153.el7 selinux-policy-targeted.noarch 0:3.12.1-153.el7_0.10 tuned.noarch 0:2.3.0-11.el7_0.3 tzdata.noarch 0:2014e-1.el7_0 Complete!