Shulou(Shulou.com)06/02 Report--

I. demand

Base to 300 new servers, need to install the CentOS7.6 version of the operating system from the implementation, choose to use PXE for batch installation.

II. Preparatory work

Use a layer 2 switch to connect an uninstalled operating system server to avoid affecting the normal server in the existing network.

Upload the operating system image to the server and install the PXE environment prerequisite services.

Mount the image file as the local software repository.

Environmental preparation

Systemctl stop firewalld # turn off firewall setenforce 0 # temporarily set SELINUX to loose mode sed-I'/ ^ SELINUX=/s/.*/SELINUX=disabled/' / etc/selinux/config # permanently disable SELINUX (requires reboot to take effect) mkdir-p / var/www/html/CentOS1810/mount / tmp/CentOS-7-x86_64-DVD-1810.iso / var/www/html/CentOS1810mkdir / etc/yum.repos.d/backup mv / etc/yum.repos.d/ {* Backup} # ignore cat > / etc/yum.repos.d/local.repo when you report an error

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