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This section illustrates the networking configuration and other advanced options that allow you to modify the {op-system-first} manual installation process. The following tables describe the kernel arguments and command-line options you can use with the {op-system} live installer and the `coreos-installer` command.
== Networking and bonding options for ISO installations
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endif::ibm-z-kvm[]
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ifdef::ibm-z-kvm[]
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== Networking options for ISO installations
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If you install {op-system} from an ISO image, you can add kernel arguments manually when you boot the image to configure networking for a node. If no networking arguments are specified, DHCP is activated in the initramfs when {op-system} detects that networking is required to fetch the Ignition config file.
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[IMPORTANT]
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====
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When adding networking arguments manually, you must also add the `rd.neednet=1` kernel argument to bring the network up in the initramfs.
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====
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The following table provides examples for configuring networking and bonding on your {op-system} nodes for ISO installations. The examples describe how to use the `ip=`, `nameserver=`, and `bond=` kernel arguments.
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[NOTE]
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The networking options are passed to the `dracut` tool during system boot. For more information about the networking options supported by `dracut`, see the `dracut.cmdline` manual page.
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.Networking and bonding options for ISO installations
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The following table provides examples for configuring networking on your {op-system} nodes for ISO installations. The examples describe how to use the `ip=` and `nameserver=` kernel arguments.
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[NOTE]
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====
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Ordering is important when adding the kernel arguments: `ip=` and `nameserver=`.
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====
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The networking options are passed to the `dracut` tool during system boot. For more information about the networking options supported by `dracut`, see the `dracut.cmdline` manual page.
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.Networking options for ISO installations
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|===
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|Description |Examples
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nameserver=1.1.1.1
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nameserver=8.8.8.8
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----
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a|Optional: Bonding multiple network interfaces to a single interface is supported
== `coreos-installer` options for ISO installations
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a|Optional: The URL of the Ignition config for the live boot. For example, this can be used to customize how `coreos-installer` is invoked, or to run code before or after the installation. This is different from `coreos.inst.ignition_url`, which is the Ignition config for the installed system.
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