Figure 3. The reason for creating the two directories shown in Figure 3. Once you have saved the changes you can move to another machine and boot off the network. In this section of the article we will look at displaying a message to users when they connect to the PXE server. The first step is to create a text file which will hold the message which will be displayed to the user as shown in Figure 4. Figure 4. In this section of the article we will look at providing a help screen or a reminder to the user.
The first task is to create a simple text file which holds useful information as shown in Figure 5. In this article we cover how to setup and configure a PXE boot server which will hopefully be useful in your environment. Your email address will not be published. IT Modernization. SAP Solutions. As can be seen, installing from a network server is just as easy as installing completely from optical media. In this example optical media was still utilized to boot the system. To avoid that, and initial complete remote based installations, a PXE boot environment is commonly utilized.
Setting up a PXE boot environment for doing full network based installs requires pulling the kernel and initrd images from the base media and hosting them on the PXE server.
Sets the default kernel command line. Adds a specific option to the kernel command line depending on the FLAG value. FLAG expects a value, described in Table Note, this option is not a substitute for running a DHCP client in the booted system.
This option is useful to avoid timeouts when the installation server probes one LAN interface after another until it gets a reply from a DHCP server. This option allows an initrd program to determine from which interface the system has been booted. Labels are mangled as if they were file names and they must be unique after mangling. The kernel does not need to be a Linux kernel. All other values are undefined. The time-out is canceled when the user types anything on the keyboard, assuming the user will complete the command begun.
A time-out of zero disables the time-out completely this is also the default. The maximum possible time-out value is just less than one hour. Displays the indicated file on the screen when a function key is pressed at the boot prompt. This can be used to implement preboot online help presumably for the kernel command line options. For backward compatibility with earlier releases, F10 can be also entered as F0. Note that there is currently no way to bind file names to F11 and F Otherwise this system would try to re-install itself every time you boot it.
This signal is called the "magic packet". Install WOL on client machines to enable remote wakeups, and on every machine you want to use for sending the wakeup signal.
When computers are shutdown they usually are not turned all the way off, but remain in a low power mode. When the network interface supports WOL it listens for the magic packet wakeup signal when the machine is powered off.
This is where the rubber really meets the road. Getting all the right files in the right places allows you to add more architectures, OS install options, etc.
At this point, you need to copy necessary boot files for the x86 BIOS environment to the appropriate boot location. This is easiest to do if you navigate to the appropriate directory as seen below. While still in the loader directory, make the directory for the config file and copy it in. Now that the files are all in place, it is time to edit the configuration to get all the correct boot options in place. My example is here:. My example is below.
Now, you will need to create a grub. Start by copying the files required for UEFI booting of a grub2-efi environment. Now, you will need to edit the grub. You should add contents similar to below. This addition to the config file has a few other options to enable the serial console and allow installation via ssh, which is helpful for systems that do not have a standard KVM console interface.
The SMT service is invaluable in that it provides a local repository mirror for updates to your software. Follow the instructions here to install and configure SMT. Be sure to select both the pool and update repositories for each product you are supporting with this server. Be sure to select the SMT server as the registration server during install.
Further goodness can be had by building custom autoyast files as well. These files can enable a streamlined installation process and perhaps even an unattended process if everything is well enough defined.
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