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<refentry id= "dracutkernel7" >
<refentryinfo >
<title > dracut.kernel</title>
<productname > dracut</productname>
<authorgroup >
<author >
<contrib > Developer</contrib>
<firstname > Harald</firstname>
<surname > Hoyer</surname>
<email > harald@redhat.com</email>
</author>
</authorgroup>
</refentryinfo>
<refmeta >
<refentrytitle > dracut.kernel</refentrytitle>
<manvolnum > 7</manvolnum>
<refmiscinfo class= "version" />
</refmeta>
<refnamediv >
<refname > dracut.kernel</refname>
<refpurpose > dracut kernel command line options</refpurpose>
</refnamediv>
<refsect1 >
<title > Description</title>
<para > The root filesystem used by the kernel is specified in the boot configuration
file, as always. The traditional <emphasis remap= "B" > root=/dev/hda1</emphasis> style device
specification is allowed. If a label is used, as in <emphasis remap= "B" > root=LABEL=rootPart</emphasis>
the initramfs will search all available devices for an ext2 or ext3 filesystem
with the appropriate label, and mount that device as the root filesystem.
<emphasis remap= "B" > root=UUID=uuidnumber</emphasis> will mount the partition with that UUID as the
root filesystem.</para>
<refsect2 >
<title > Standard</title>
<variablelist >
<varlistentry >
<term >
<envar > init=<replaceable > < path to real init> </replaceable> </envar>
</term>
<listitem >
<para > </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > root=<replaceable > < path to blockdevice> </replaceable> </envar>
</term>
<listitem >
<para > specify blockdevice to use as root filesystem.
e.g.: <programlisting > root=/dev/sda1
root=/dev/disk/by-path/pci-0000:00:1f.1-scsi-0:0:1:0-part1 </programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rootfstype=<replaceable > < filesystem type> </replaceable> </envar>
</term>
<listitem >
<para > " auto" if not specified, e.g.: <programlisting > rootfstype=ext3</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rootflags=<replaceable > < mount options> </replaceable> </envar>
</term>
<listitem >
<para > specify additional mount options for the root filesystem. If not set, <filename > /etc/fstab</filename>
of the real root will be parsed for special mount options and mounted
accordingly.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_FSTAB</envar>
</term>
<listitem >
<para > do not honor special mount options for the root filesystem found in
<filename > /etc/fstab</filename> of the real root.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > Misc</title>
<variablelist >
<varlistentry >
<term >
<envar > rdblacklist=<replaceable > < drivername> </replaceable> </envar>
</term>
<listitem >
<para > do not load kernel module < drivername>
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdloaddriver=<replaceable > < drivername> </replaceable> </envar>
</term>
<listitem >
<para > force loading kernel module < drivername>
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 id= "dracut-kernel-debug" >
<title > Debug</title>
<variablelist >
<varlistentry >
<term >
<envar > rdinfo</envar>
</term>
<listitem >
<para > print informational output though " quiet" is set</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdshell</envar>
</term>
<listitem >
<para > allow dropping to a shell, if root mounting fails</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdinitdebug</envar>
</term>
<listitem >
<para > set -x for the dracut shell and logs to dmesg, console and <filename > /init.log</filename> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdbreak</envar>
</term>
<listitem >
<para > drop to a shell at the end</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdbreak=</envar>
<replaceable > {cmdline|pre-udev|pre-trigger|initqueue|pre-mount|mount|pre-pivot}</replaceable>
</term>
<listitem >
<para > drop to a shell on defined breakpoint</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdudevinfo</envar>
</term>
<listitem >
<para > set udev to loglevel info</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rdudevdebug</envar>
</term>
<listitem >
<para > set udev to loglevel debug</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd.timestamp</envar>
</term>
<listitem >
<para > export RDTIMESTAMP environment variable to init, which is set to the uptime of the dracut start.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > I18N</title>
<variablelist >
<varlistentry >
<term >
<envar > KEYMAP=</envar>
<replaceable > < keymap base file name> </replaceable>
</term>
<listitem >
<para > keyboard translation table loaded by loadkeys; taken from keymaps directory; will be written to <filename > /etc/sysconfig/keyboard</filename> in the initramfs, e.g.: <programlisting > KEYMAP=de-latin1-nodeadkeys</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > EXT_KEYMAPS=</envar>
<replaceable > < list of keymap base file names> </replaceable>
</term>
<listitem >
<para > list of extra keymaps to bo loaded (sep. by space); will be written to <filename > /etc/sysconfig/keyboard</filename> in the initramfs</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > UNICODE=</envar>
<replaceable > < 1|0> </replaceable>
</term>
<listitem >
<para > boolean, indicating UTF-8 mode; will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > SYSFONT=</envar>
<replaceable > < font base file name> </replaceable>
</term>
<listitem >
<para > console font; taken from consolefonts directory; will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs; e.g.: <programlisting > SYSFONT=LatArCyrHeb-16</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > CONTRANS=</envar>
<replaceable > < console map base file name> </replaceable>
</term>
<listitem >
<para > see description of ' -m' parameter in setfont manual; taken from consoletrans directory; will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > UNIMAP=</envar>
<replaceable > < unicode table base file name> </replaceable>
</term>
<listitem >
<para > see description of ' -u' parameter in setfont manual; taken from unimaps directory; will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > LANG=</envar>
<replaceable > < locale> </replaceable>
</term>
<listitem >
<para > taken from the environment; if no UNICODE is defined we set its value in basis of LANG value (whether it ends with " .utf8" (or similar) or not); will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs; e.g.: <programlisting > LANG=pl_PL.utf8</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > LC_ALL=</envar>
<replaceable > < locale> </replaceable>
</term>
<listitem >
<para > taken from the environment; will be written to <filename > /etc/sysconfig/i18n</filename> in the initramfs</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > LVM</title>
<variablelist >
<varlistentry >
<term >
<envar > rd_NO_LVM</envar>
</term>
<listitem >
<para > disable LVM detection</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_LVM_VG=<replaceable > < volume group name> </replaceable> </envar>
</term>
<listitem >
<para > only activate the volume groups with the given name
<envar > rd_LVM_VG</envar> can be specified multiple times on the kernel command line.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_LVM_LV=<replaceable > < logical volume name> </replaceable> </envar>
</term>
<listitem >
<para > only activate the logical volumes with the given name
<envar > rd_LVM_LV</envar> can be specified multiple times on the kernel command line.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_LVMCONF</envar>
</term>
<listitem >
<para > remove any <filename > /etc/lvm/lvm.conf</filename> , which may exist in the initramfs</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > crypto LUKS</title>
<variablelist >
<varlistentry >
<term >
<envar > rd_NO_LUKS</envar>
</term>
<listitem >
<para > disable crypto LUKS detection</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_LUKS_UUID=<replaceable > < luks uuid> </replaceable> </envar>
</term>
<listitem >
<para > only activate the LUKS partitions with the given UUID
Any " luks-" of the LUKS UUID is removed before comparing to <replaceable > < luks uuid> </replaceable> .
The comparisons also matches, if <replaceable > < luks uuid> </replaceable> is only the beginning of the
LUKS UUID, so you don' t have to specify the full UUID.
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_CRYPTTAB</envar>
</term>
<listitem >
<para > do not check, if LUKS partition is in <filename > /etc/crypttab</filename> </para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > crypt LUKS - experimental removable keys support</title>
<para > works only when plymouth module is not included</para>
<variablelist >
<varlistentry >
<term >
<envar > rd_LUKS_KEYPATH=</envar>
<replaceable > < path to keyfile> </replaceable>
</term>
<listitem >
<para > path to keyfile inside remove device filesystem</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_LUKS_KEYDEV_UUID=</envar>
<replaceable > < rem. device uuid> </replaceable>
</term>
<listitem >
<para > UUID of removalbe device storing keyfile; UUID doesn' t have to be exact just like for <envar > rd_LUKS_UUID</envar> </para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > MD</title>
<variablelist >
<varlistentry >
<term >
<envar > rd_NO_MD</envar>
</term>
<listitem >
<para > disable MD RAID detection</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_MDIMSM</envar>
</term>
<listitem >
<para > no MD RAID for imsm/isw raids, use dmraid instead</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_MDADMCONF</envar>
</term>
<listitem >
<para > ignore mdadm.conf included in initramfs</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_MD_UUID=<replaceable > < md uuid> </replaceable> </envar>
</term>
<listitem >
<para > only activate the raid sets with the given UUID.
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > DMRAID</title>
<variablelist >
<varlistentry >
<term >
<envar > rd_NO_DM</envar>
</term>
<listitem >
<para > disable DM RAID detection</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_DM_UUID=<replaceable > < dmraid uuid> </replaceable> </envar>
</term>
<listitem >
<para > only activate the raid sets with the given UUID.
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > Network</title>
<variablelist >
<varlistentry >
<term >
<envar > ip=</envar>
<replaceable > {dhcp|on|any|dhcp6|auto6}</replaceable>
</term>
<listitem >
<para > dhcp|on|any: get ip from dhcp server from all interfaces. If root=dhcp,
loop sequentially through all interfaces (eth0, eth1, ...) and use the first
with a valid DHCP root-path.</para>
<para > <constant > auto6</constant> : IPv6 autoconfiguration</para>
<para > <constant > dhcp6</constant> : IPv6 DHCP</para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > ip=</envar> <replaceable > < interface> </replaceable> :<replaceable > {dhcp|on|any|dhcp6|auto6}</replaceable> </term>
<listitem >
<para > dhcp|on|any|dhcp6: get ip from dhcp server on a specific interface
auto6: do IPv6 autoconfiguration
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > ip=</envar> <replaceable > < client-IP> </replaceable> :<optional >
<replaceable > < server-id> </replaceable>
</optional> :<replaceable > < gateway-IP> </replaceable> :<replaceable > < netmask> </replaceable> :<replaceable > < client_hostname> </replaceable> :<replaceable > < interface> </replaceable> :<replaceable > {none|off}</replaceable> </term>
<listitem >
<para > explicit network configuration. If you want do define a IPv6 address, put it in brackets (e.g. [2001:DB8::1]).
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > ifname=</envar> <replaceable > < interface> </replaceable> :<replaceable > < MAC> </replaceable> </term>
<listitem >
<para > Assign network device name < interface> (ie eth0) to the NIC with MAC < MAC> .
Note letters in the MAC-address must be lowercase!
<remark > Note: If you use this option you <emphasis remap= "B" > must</emphasis> specify an ifname= argument for all interfaces used in ip= or fcoe= arguments.</remark>
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > bootdev=</envar>
<replaceable > < interface> </replaceable>
</term>
<listitem >
<para > specify network interface to use routing and netroot information from.
Required if multiple ip= lines are used.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > nameserver=</envar>
<replaceable > < IP> </replaceable>
<optional > <envar > nameserver</envar> =<replaceable > < IP> </replaceable> ...</optional>
</term>
<listitem >
<para > specify nameserver(s) to use</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > NFS</title>
<variablelist >
<varlistentry >
<term >
<envar > root=</envar>
<optional > <replaceable > < server-ip> </replaceable> :</optional>
<replaceable > < root-dir> </replaceable>
<optional > :<replaceable > < nfs-options> </replaceable> </optional>
</term>
<listitem >
<para > mount nfs share from < server-ip> :/< root-dir> , if no server-ip is given,
use dhcp next_server. if server-ip is an IPv6 address it has to be put in brackets, e.g. [2001:DB8::1].
NFS options can be appended with the prefix " :" or " ," and are seperated by " ," .</para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > root=</envar> <constant > nfs</constant> :<optional > <replaceable > < server-ip> </replaceable> :</optional> <replaceable > < root-dir> </replaceable> <optional > :<replaceable > < nfs-options> </replaceable> </optional> </term>
<term > <envar > root=</envar> nfs4:<optional > <replaceable > < server-ip> </replaceable> :</optional> <replaceable > < root-dir> </replaceable> <optional > :<replaceable > < nfs-options> </replaceable> </optional> </term>
<term >
<envar > root=</envar>
<replaceable > {dhcp|dhcp6}</replaceable>
</term>
<listitem >
<para > root=dhcp alone directs initrd to look at the DHCP root-path where NFS
options can be specified.
root-path=< server-ip> :< root-dir> [,< nfs-options> ]
root-path=nfs:< server-ip> :< root-dir> [,< nfs-options> ]
root-path=nfs4:< server-ip> :< root-dir> [,< nfs-options> ]</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > root=</envar>
<filename > /dev/nfs</filename>
<envar > nfsroot=</envar>
<optional > <replaceable > < server-ip> </replaceable> :</optional>
<replaceable > < root-dir> </replaceable>
<optional > :<replaceable > < nfs-options> </replaceable> </optional>
</term>
<listitem >
<para > <emphasis remap= "B" > Deprecated!</emphasis> kernel Documentation<filename > /filesystems/nfsroot.txt</filename> defines
this method.
This is supported by dracut, but not recommended.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar remap= "B" > rd_NFS_DOMAIN=</envar>
<replaceable > < NFSv4 domain name> </replaceable>
</term>
<listitem >
<para > Set the NFSv4 domain name. Will overwrite the settings in <filename > /etc/idmap.conf</filename> .</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > iSCSI</title>
<variablelist >
<varlistentry >
<term > <envar > root=</envar> <constant > iscsi</constant> :<optional > <replaceable > < username> </replaceable> :<replaceable > < password> </replaceable> <optional > :<replaceable > < reverse> </replaceable> :<replaceable > < password> </replaceable> </optional> @</optional> <optional >
<replaceable > < servername> </replaceable>
</optional> :<optional >
<replaceable > < protocol> </replaceable>
</optional> :<optional >
<replaceable > < port> </replaceable>
</optional> :<optional >
<replaceable > < LUN> </replaceable>
</optional> :<replaceable > < targetname> </replaceable> </term>
<listitem >
<para > protocol defaults to " 6" , LUN defaults to " 0" .</para>
<para > If the " servername" field is provided by <acronym > BOOTP</acronym> or <acronym > DHCP</acronym> , then that
field is used in conjunction with other associated fields to contact
the boot server in the Boot stage. However, if the
" servername" field is not provided, then the " targetname" field is
then used in the Discovery Service stage in conjunction with other
associated fields.</para>
<para > See <ulink url= "http://tools.ietf.org/html/rfc4173#section-5" > http://tools.ietf.org/html/rfc4173</ulink> .</para>
<para > e.g.:<programlisting > root=iscsi:192.168.50.1::::iqn.2009-06.dracut:target0 </programlisting> </para>
<para > If servername is an IPv6 address, it has to be put in brackets. e.g.:
<programlisting > root=iscsi:[2001:DB8::1]::::iqn.2009-06.dracut:target0 </programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > root=</envar> <replaceable > ???</replaceable> <envar > netroot=</envar> <constant > iscsi</constant> :<optional > <replaceable > < username> </replaceable> :<replaceable > < password> </replaceable> <optional > :<replaceable > < reverse> </replaceable> :<replaceable > < password> </replaceable> </optional> @</optional> <optional >
<replaceable > < servername> </replaceable>
</optional> :<optional >
<replaceable > < protocol> </replaceable>
</optional> :<optional >
<replaceable > < port> </replaceable>
</optional> :<optional >
<replaceable > < LUN> </replaceable>
</optional> :<replaceable > < targetname> </replaceable> ...</term>
<listitem >
<para > multiple netroot options allow setting up multiple iscsi disks. e.g.:
<programlisting > root=UUID=12424547
netroot=iscsi:192.168.50.1::::iqn.2009-06.dracut:target0
netroot=iscsi:192.168.50.1::::iqn.2009-06.dracut:target1 </programlisting> </para>
<para > If servername is an IPv6 address, it has to be put in brackets.
e.g.:
<programlisting > netroot=iscsi:[2001:DB8::1]::::iqn.2009-06.dracut:target0</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > root=<replaceable > ???</replaceable> </envar>
<envar > iscsi_initiator=<replaceable > < initiator> </replaceable> </envar>
<envar > iscsi_target_name=<replaceable > < target_name> </replaceable> </envar>
<envar > iscsi_target_ip=<replaceable > < target ip> </replaceable> </envar>
<envar > iscsi_target_port=<replaceable > < target port> </replaceable> </envar>
<envar > iscsi_target_group=<replaceable > < target group> </replaceable> </envar>
<envar > iscsi_username=<replaceable > < username> </replaceable> </envar>
<envar > iscsi_password=<replaceable > < password> </replaceable> </envar>
<envar > iscsi_in_username=<replaceable > < in username> </replaceable> </envar>
<envar > iscsi_in_password=<replaceable > < in password> </replaceable> </envar>
</term>
<listitem >
<para > manually specify all iscsistart parameter (see <userinput > iscsistart --help</userinput> )</para>
</listitem>
</varlistentry>
<varlistentry >
<term > <envar > root=</envar> ???<envar > iscsi_firmware</envar> </term>
<listitem >
<para > will read the iscsi parameter from the BIOS firmware</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > FCoE</title>
<variablelist >
<varlistentry >
<term > <envar > netroot=</envar> <constant > fcoe</constant> :<replaceable > < interface|MAC> </replaceable> :<replaceable > {dcb|nodcb}</replaceable> </term>
<listitem >
<para > Try to connect to a FCoE SAN through the NIC specified by <replaceable > < interface> </replaceable> or <replaceable > < MAC> </replaceable> ,
for the second argument, currently only nodcb is supported. <remark > Note: letters in the MAC-address must be lowercase!</remark> </para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > NBD</title>
<variablelist >
<varlistentry >
<term > <envar > root=</envar> <constant > nbd</constant> :<replaceable > < server> </replaceable> :<replaceable > < port> </replaceable> <optional > :<replaceable > < fstype> </replaceable> </optional> <optional > :<replaceable > < mountopts> </replaceable> </optional> </term>
<listitem >
<para > mount nbd share from < server> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > root=dhcp</envar>
</term>
<listitem >
<para > with dhcp root-path=nbd:< server> :< port> [:< fstype> ][:< mountopts> ]
root=dhcp alone directs initrd to look at the DHCP root-path where NBD
options can be specified.
This syntax is only usable in cases where you are directly mounting the volume
as the rootfs.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > DASD</title>
<variablelist >
<varlistentry >
<term > <envar > rd_DASD_MOD=</envar> ....</term>
<listitem >
<para > same syntax as the kernel module parameter (s390 only)</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_DASD=</envar>
<replaceable > < dasd_adaptor device bus ID> </replaceable>
<optional > ,readonly=<replaceable > X</replaceable> </optional>
<optional > ,use_diag=<replaceable > X</replaceable> </optional>
<optional > ,erplog=<replaceable > X</replaceable> </optional>
</term>
<listitem >
<para > activate DASD device with the given adaptor device bus ID and setting the sysfs attributes
to the specified values
This parameter can be specified multiple times.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > ZFCP</title>
<variablelist >
<varlistentry >
<term > <envar > rd_ZFCP=</envar> <replaceable > < zfcp adaptor device bus ID> </replaceable> ,<replaceable > < WWPN> </replaceable> ,<replaceable > < FCPLUN> </replaceable> </term>
<listitem >
<para > rd_ZFCP can be specified multiple times on the kernel command line. e.g.: <programlisting > rd_ZFCP=0.0.4000,0x5005076300C213e9,0x5022000000000000</programlisting> </para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<envar > rd_NO_ZFCPCONF</envar>
</term>
<listitem >
<para > ignore zfcp.conf included in the initramfs</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > ZNET</title>
<variablelist >
<varlistentry >
<term > <envar > rd_ZNET=</envar> <replaceable > < nettype> </replaceable> ,<replaceable > < subchannels> </replaceable> ,<replaceable > < options> </replaceable> </term>
<listitem >
<para > rd_ZNET can be specified multiple times on the kernel command line. e.g.:
<programlisting > rd_ZNET=qeth,0.0.0600,0.0.0601,0.0.0602,layer2=1,portname=foo
rd_ZNET=ctc,0.0.0600,0.0.0601,0.0.0602,protocol=bar</programlisting> </para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
<refsect2 >
<title > Plymouth Boot Splash</title>
<variablelist >
<varlistentry >
<term >
<envar > rd_NO_PLYMOUTH</envar>
</term>
<listitem >
<para > do not start plymouth. This will not work with encrypted partitions.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect2>
</refsect1>
<refsect1 >
<title > Configuration in the Initramfs</title>
<variablelist >
<varlistentry >
<term >
<filename > /conf/conf.d/</filename>
</term>
<listitem >
<para > Any files found in <filename > /conf/conf.d/</filename> will be sourced in the initramfs to
set initial values. Command line options will override these values
set in the configuration files.</para>
</listitem>
</varlistentry>
<varlistentry >
<term >
<filename > /etc/cmdline</filename>
</term>
<listitem >
<para > Can contain additional command line options.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 >
<title > See Also</title>
<para >
<citerefentry >
<refentrytitle > dracut</refentrytitle>
<manvolnum > 8</manvolnum>
</citerefentry>
<citerefentry >
<refentrytitle > dracut.conf</refentrytitle>
<manvolnum > 5</manvolnum>
</citerefentry>
</para>
</refsect1>
</refentry>
