NM-INITRD-GENERATOR(8)                     NM-INITRD-GENERATOR(8)

     NAME
          nm-initrd-generator - early boot NetworkManager
          configuration generator

     SYNOPSIS
          nm-initrd-generator [OPTIONS...] -- [CMDLINE...]

     DESCRIPTION
          nm-initrd-generator scans the command line for options
          relevant to network configuration and creates configuration
          files for an early instance of NetworkManager run from the
          initial ramdisk during early boot.

     OPTIONS
          -c | --connections-dir path
              Output connection directory.

          -i | --initrd-data-dir path
              Output directory for initrd data (e.g. hostname).

          -d | --sysfs-dir path
              The sysfs mount point.

          -r | --run-config-dir path
              Output directory for config files.

          -s | --stdout
              Dump connections to standard output. Useful for
              debugging.

          CMDLINE
              The options that appear on the kernel command line. The
              following options are recognized:
                  ip
                  rd.route
                  bridge
                  bond
                  team
                  vlan
                  ib.pkey
                  bootdev
                  nameserver
                  rd.peerdns
                  rd.bootif
                  rd.ethtool
                  rd.net.timeout.dhcp
                  rd.net.timeout.carrier
                  rd.znet
                  BOOTIF
              Please consult the dracut.cmdline(7) manual for the

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     NM-INITRD-GENERATOR(8)                     NM-INITRD-GENERATOR(8)

              documentation of the precise format of the values
              supported.

     DIFFERENCES FROM THE NETWORK-LEGACY DRACUT MODULE
          nm-initrd-generator generates a set of connections that are
          then configured by the NetworkManager instance running in
          the initrd. There are some differences in behavior compared
          to the network-legacy dracut module:

          +o   When an interface is configured with a static address
              and a gateway, the network-legacy module waits that the
              gateway responds to arping requests before proceeding,
              while NetworkManager doesn't.

          +o   network-legacy configures interfaces one by one in the
              order in which they are announced by udev. If multiple
              interfaces specify a hostname (from command line or from
              DHCP), the one from the last interface activated wins.
              With NetworkManager, hostnames from command line have
              higher precedence over ones from DHCP, and the last that
              appears in the command line wins.

          +o   NetworkManager supports the ib.pkey=PARENT.PKEY argument
              to set up an Infiniband partition on IPoIB parent device
              PARENT using the specified partition key PKEY. The
              partition key must be in hexadecimal notation without
              leading "0x", for example "ib.pkey=ib0.8004".

          +o   NetworkManager supports the
              rd.ethtool=INTERFACE:AUTONEG:SPEED kernel command line
              option to set up ethtool NIC configuration parameters
              AUTONEG and SPEED. The INTERFACE being configured must
              be specified, and the other parameters are optional and
              can be left blank. When SPEED is set, duplex mode is
              automatically set to 'full'.  INTERFACE accepts string
              values, AUTONEG accepts boolean values (true and false /
              on or off / 0 or 1), and SPEED accepts positive integer
              values.

     EXIT STATUS
          nm-initrd-generator exits with status 0. It ignores
          unrecognized options and prints an error message if it
          encounters a malformed option.

     SEE ALSO
          dracut.cmdline(7), NetworkManager(8).

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