linux-graphical PXE implementation fully automatic installation system (1)

Installation background:

In the actual work, we often encounter this situation: want to install Linux but the computer does not have an optical drive, or there is a large number of computers need to install Linux at the same time, if installed through the CD-ROM, not only inefficient, but also not conducive to maintenance. It's time for you to need the power of PXE. This article is a simple illustration of the PXE installation process.

2, this blog post PXE automatic installation hardware architecture, such as, DHCP, TFTP, http are on 172.16.5.2 this server.

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3, the principle of automatic installation:

1. The client starts from its own PXE network card and requests IP from the DHCP server in the network

2.DHCP server returned to client IP

3. The client requests the files from the TFTP server in the network

4. The client obtains the bootstrap file after the execution boot file completes the boot

5. Then read the configuration file and load the kernel and file system via the TFTP server

6. Go to the installation screen and you can install it by selecting HTTP, FTP, NFS (http for example)

From here, we're not hard to get. 4 elements required to implement a PXE network installation

1. The client's network card must be a PXE NIC

2. The network must have a DHCP and TFTP server, of course, the two servers can be the same physical host

3. The installed operating system must support network installation.

4. Must have FTP,HTTP,NFS at least one server, of course, and DHCP and TFTP server as a physical host

4. PXE Configuration flowchart:

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linux-graphical PXE implementation fully automatic installation system (1)