安装之前遇到的问题：   Note: Forwarding request to 'systemctl disable NetworkManager.service'. Removed symlink /etc/systemd/system/multi-user.target.wants/NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.NetworkManager.service. Removed symlink /etc/systemd/system/dbus-org.freedesktop.nm-dispatcher.service. Removed symlink /etc/systemd/system/network-online.target.wants/NetworkManager-wait-online.service. sed: can't read /etc/sysconfig/network-scripts/ifcfg-ens33: No such file or directory sed: can't read /etc/sysconfig/network-scripts/ifcfg-: No such file or directory Restarting network (via systemctl): Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details. [FAILED] ./step1_install.sh: line 28: ifconfig: command not found ./step1_install.sh: line 29: brctl: command not found     yum -y install net-tools bridge-utils vim     网桥出现错误: Restarting network (via systemctl): Job for network.service failed because the control process exited with error code. See "systemctl status network.service" and "journalctl -xe" for details. [FAILED] virbr0: ERROR while getting interface flags: No such device bridge virbr0 doesn't exist; can't delete it Failed to execute operation: No such file or directory 貌似不用管   jdk配置的问题： tar xzvf jdk-8u144-linux-x64.tar.gz -C /usr/java echo 'export c=/usr/java/jdk1.8.0_144'>>/etc/profile echo 'export PATH=$JAVA_HOME/bin:$PATH ' >>/etc/profile echo 'export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar '>>/etc/profile 重启试一下 source /etc/profile   网卡MAC： 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000 link/ether fa:eb:19:ae:d5:00 brd ff:ff:ff:ff:ff:ff inet 192.168.50.108/24 brd 192.168.50.255 scope global eth0 valid_lft forever preferred_lft forever inet6 fe80::f8eb:19ff:feae:d500/64 scope link valid_lft forever preferred_lft forever   cd /etc/sysconfig/network-scripts mv ifcfg-eth0 ifcfg-ens33