KERNEL-COMMAND-LINE
Section: kernel-command-line (7)
Updated:
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NAME
kernel-command-line - Kernel command line parameters
SYNOPSIS
/proc/cmdline
DESCRIPTION
The kernel, the initial RAM disk (initrd) and basic userspace functionality may be configured at boot via kernel command line arguments.
For command line parameters understood by the kernel, please see
m[blue]kernel-parameters.txtm[][1]
and
bootparam(7).
For command line parameters understood by the initial RAM disk, please see
dracut.cmdline(7), or the documentation of the specific initrd implementation of your installation.
CORE OS COMMAND LINE ARGUMENTS
systemd.unit=, rd.systemd.unit=, systemd.dump_core=, systemd.crash_shell=, systemd.crash_chvt=, systemd.confirm_spawn=, systemd.show_status=, systemd.log_target=, systemd.log_level=, systemd.log_color=, systemd.log_location=, systemd.default_standard_output=, systemd.default_standard_error=, systemd.setenv=
-
Parameters understood by the system and service manager to control system behavior. For details, see
systemd(1).
systemd.mask=, systemd.wants=, systemd.debug-shell
-
Additional parameters understood by
systemd-debug-generator(8), to mask or start specific units at boot, or invoke a debug shell on tty9.
systemd.restore_state=
-
This parameter is understood by several system tools to control whether or not they should restore system state from the previous boot. For details, see
systemd-backlight@.service(8)
and
systemd-rfkill@.service(8).
quiet
-
Parameter understood by both the kernel and the system and service manager to control console log verbosity. For details, see
systemd(1).
debug
-
Parameter understood by both the kernel and the system and service manager to control console log verbosity. For details, see
systemd(1).
-b, emergency, single, s, S, 1, 2, 3, 4, 5
-
Parameters understood by the system and service manager, as compatibility options. For details, see
systemd(1).
locale.LANG=, locale.LANGUAGE=, locale.LC_CTYPE=, locale.LC_NUMERIC=, locale.LC_TIME=, locale.LC_COLLATE=, locale.LC_MONETARY=, locale.LC_MESSAGES=, locale.LC_PAPER=, locale.LC_NAME=, locale.LC_ADDRESS=, locale.LC_TELEPHONE=, locale.LC_MEASUREMENT=, locale.LC_IDENTIFICATION=
-
Parameters understood by the system and service manager to control locale and language settings. For details, see
systemd(1).
fsck.mode=, fsck.repair=
-
Parameters understood by the file system checker services. For details, see
systemd-fsck@.service(8).
quotacheck.mode=
-
Parameter understood by the file quota checker service. For details, see
systemd-quotacheck.service(8).
systemd.journald.forward_to_syslog=, systemd.journald.forward_to_kmsg=, systemd.journald.forward_to_console=, systemd.journald.forward_to_wall=
-
Parameters understood by the journal service. For details, see
systemd-journald.service(8).
vconsole.keymap=, vconsole.keymap.toggle=, vconsole.font=, vconsole.font.map=, vconsole.font.unimap=
-
Parameters understood by the virtual console setup logic. For details, see
systemd-vconsole-setup.service(8).
udev.log-priority=, rd.udev.log-priority=, udev.children-max=, rd.udev.children-max=, udev.exec-delay=, rd.udev.exec-delay=, net.ifnames=
-
Parameters understood by the device event managing daemon. For details, see
systemd-udevd.service(8).
plymouth.enable=
-
May be used to disable the Plymouth boot splash. For details, see
plymouth(8).
luks=, rd.luks=, luks.crypttab=, rd.luks.crypttab=, luks.uuid=, rd.luks.uuid=, luks.options=, rd.luks.options=, luks.key=, rd.luks.key=
-
Configures the LUKS full-disk encryption logic at boot. For details, see
systemd-cryptsetup-generator(8).
fstab=, rd.fstab=
-
Configures the
/etc/fstab
logic at boot. For details, see
systemd-fstab-generator(8).
root=, rootfstype=, rootfsflags=, ro, rw
-
Configures the root file system and its file system type and mount options, as well as whether it shall be mounted read-only or read-writable initially. For details, see
systemd-fstab-generator(8).
systemd.gpt_auto=, rd.systemd.gpt_auto=
-
Configures whether GPT based partition auto-discovery shall be attempted. For details, see
systemd-gpt-auto-generator(8).
modules-load=, rd.modules-load=
-
Load a specific kernel module early at boot. For details, see
systemd-modules-load.service(8).
SEE ALSO
systemd(1),
bootparam(7),
dracut.cmdline(7),
systemd-debug-generator(8),
systemd-fsck@.service(8),
systemd-quotacheck.service(8),
systemd-journald.service(8),
systemd-vconsole-setup.service(8),
systemd-udevd.service(8),
plymouth(8),
systemd-cryptsetup-generator(8),
systemd-fstab-generator(8),
systemd-gpt-auto-generator(8),
systemd-modules-load.service(8),
systemd-backlight@.service(8),
systemd-rfkill@.service(8)
NOTES
- 1.
-
kernel-parameters.txt
-
https://www.kernel.org/doc/Documentation/kernel-parameters.txt
Index
- NAME
-
- SYNOPSIS
-
- DESCRIPTION
-
- CORE OS COMMAND LINE ARGUMENTS
-
- SEE ALSO
-
- NOTES
-