KERNEL-COMMAND-LINE(7) kernel-command-line KERNEL-COMMAND-LINE(7) kernel-command-line - /proc/cmdline initrd . kernel-parameters.html[1] bootparam(7). initrd initrd . systemd.unit=, rd.systemd.unit=, systemd.dump_core, systemd.crash_chvt, systemd.crash_shell, systemd.crash_action=, systemd.confirm_spawn, systemd.service_watchdogs, systemd.show_status, systemd.status_unit_format=, systemd.log_target=, systemd.log_level=, systemd.log_location=, systemd.log_color, systemd.log_ratelimit_kmsg, systemd.default_standard_output=, systemd.default_standard_error=, systemd.setenv=, systemd.machine_id=, systemd.set_credential=, systemd.set_credential_binary=, systemd.import_credentials=, systemd.reload_limit_interval_sec=, systemd.reload_limit_burst= . systemd(1). 186. systemd.mask=, systemd.wants=, systemd.debug_shell, systemd.default_debug_tty= systemd-debug-generator(8) tty9. 215. systemd.break= rd.systemd.break= systemd-debug-generator(8) . 258. systemd.run=, systemd.run_success_action=, systemd.run_failure_action= systemd-run-generator(8) . 240. systemd.early_core_pattern= ( ) . . core(5) . 240. systemd.restore_state= . systemd-backlight@.service(8) systemd-rfkill.service(8). 209. systemd.ssh_auto=, systemd.ssh_listen= systemd-ssh-generator(8) SSH . 256. systemd.volatile= . "state" "overlay". () /var/ /etc/fstab . . ("tmpfs") /usr/ . /etc/ /var/ ( ) . "state" /var/ ("tmpfs") . "overlay" "overlayfs" "tmpfs" . systemd-volatile-root.service(8) systemd-fstab-generator(8). 233. quiet . systemd(1). 186. debug . systemd(1). 205. -b, rd.emergency, emergency, rd.rescue, rescue, single, s, S, 1, 2, 3, 4, 5 . systemd(1). 186. 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= . systemd(1). 186. fsck.mode=, fsck.repair= . systemd-fsck@.service(8). 186. quotacheck.mode= . systemd-quotacheck@.service(8). 186. systemd.journald.forward_to_syslog= systemd.journald.forward_to_kmsg= systemd.journald.forward_to_console= systemd.journald.forward_to_wall= . systemd-journald.service(8). 186. vconsole.keymap= vconsole.keymap_toggle= vconsole.font= vconsole.font_map= vconsole.font_unimap= . vconsole.conf(5). 186. udev.log_level= rd.udev.log_level= udev.trace= rd.udev.trace= udev.children_max= rd.udev.children_max= udev.exec_delay= rd.udev.exec_delay= udev.event_timeout= rd.udev.event_timeout= udev.timeout_signal= rd.udev.timeout_signal= udev.blockdev_read_only rd.udev.blockdev_read_only net.ifnames= net.naming_scheme= . systemd-udevd.service(8). 186. plymouth.enable= Plymouth. plymouth(8). 186. luks= rd.luks= luks.crypttab= rd.luks.crypttab= luks.name= rd.luks.name= luks.uuid= rd.luks.uuid= luks.options= rd.luks.options= luks.key= rd.luks.key= LUKS . systemd-cryptsetup-generator(8). 186. fstab= rd.fstab= /etc/fstab . systemd-fstab-generator(8). 186. root= rootfstype= rootflags= ro rw . systemd-fstab-generator(8). root= ( "gpt-auto") systemd-gpt-auto-generator(8). systemd-gpt-auto-generator rootfstype= rootflags= ro rw. 215. mount.usr= mount.usrfstype= mount.usrflags= /usr ( ) . systemd-fstab-generator(8). 235. veritytab= rd.veritytab= roothash= systemd.verity= rd.systemd.verity= systemd.verity_root_data= systemd.verity_root_hash= systemd.verity_root_options= usrhash= systemd.verity_usr_data= systemd.verity_usr_hash= systemd.verity_usr_options= /usr . systemd-veritysetup-generator(8). 233. systemd.getty_auto= serial-getty@.service . systemd-getty-generator(8). 250. systemd.gpt_auto= rd.systemd.gpt_auto= GPT. systemd-gpt-auto-generator(8). 215. systemd.image_policy= GPT systemd.image-policy(7). systemd-gpt-auto-generator(8). 254. systemd.image_filter= GPT systemd.image-filter(7). systemd-gpt-auto-generator(8). 258. systemd.default_timeout_start_sec= DefaultTimeoutStartSec= . systemd-system.conf(5). 230. systemd.default_device_timeout_sec= DefaultDeviceTimeoutSec= . systemd-system.conf(5). 254. systemd.watchdog_device= WatchdogDevice=. systemd-system.conf(5). 236. systemd.watchdog_sec= RuntimeWatchdog= RebootWatchdog= KExecWatchdogSec=. ( ) "off" "default". systemd-system.conf(5). 250. systemd.watchdog_pre_sec= RuntimeWatchdogPreSec=. ( ) "off" "default". systemd-system.conf(5). 251. systemd.watchdog_pretimeout_governor= RuntimeWatchdogPreGovernor=. . systemd-system.conf(5). 251. systemd.cpu_affinity= . CPUAffinity= systemd-system.conf(5) . 245. modules_load= rd.modules_load= . systemd-modules-load.service(8). 187. nameserver= domain= DNS systemd-resolved.service(8) . 253. resume=, resumeflags= . fstab(5) . systemd-hibernate-resume-generator(8). 217. resume_offset= . systemd-hibernate-resume-generator(8). 254. systemd.firstboot= . systemd-firstboot.service(8) systemd-homed-firstboot.service(1) . systemd.condition_first_boot= ( ) ConditionFirstBoot= systemd-firstboot.service. 233. systemd.condition_needs_update= . ConditionNeedsUpdate=. systemd.unit(5) . 246. systemd.condition_first_boot= . ConditionFirstBoot=. systemd.unit(5) . systemd.firstboot= systemd-firstboot.service ( ). 246. systemd.clock_usec= 1 1970 00:00 . . (RTC). 246. systemd.random_seed= base64 . . /proc/cmdline. () . 512 ( ) : dd if=/dev/urandom bs=512 count=1 status=none | base64 -w 0 : . 246. systemd.allow_userspace_verity= . Verity /etc/verity.d/*.crt ( ) . : . 256. systemd.hostname= . /etc/hostname. . 246. systemd.tty.term.tty=, systemd.tty.rows.tty=, systemd.tty.columns.tty= $TERM TTYRows= TTYColumns= tty tty. systemd.tty.term.console $TERM systemd TERM . tty /dev/ ( "systemd.tty.rows.ttyS0=80"). 254. systemd.battery_check= . systemd-battery-check.service(8). 254. ifname= net.ifname_policy= systemd-network-generator.service(8). 245. systemd.tpm2_allow_clear= TPM systemd-tpm2-clear.service(8). 258. systemd.tpm2_wait= TPM2 systemd-tpm2-generator(8). 256. systemd.factory_reset= systemd-factory-reset-generator(8) systemd-repart(8) . 258. systemd 252 systemd.unified_cgroup_hierarchy systemd.legacy_systemd_cgroup_controller . cgroup. systemd(1) systemd-system.conf(5) bootparam(7) systemd.system-credentials(7) smbios-type-11(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-veritysetup-generator(8) systemd-fstab-generator(8) systemd-getty-generator(8) systemd-gpt-auto-generator(8) systemd-volatile-root.service(8) systemd-modules-load.service(8) systemd-backlight@.service(8) systemd-rfkill.service(8) systemd-hibernate-resume-generator(8) systemd-firstboot.service(8) bootctl(1) 1. kernel-parameters.html https://docs.kernel.org/admin-guide/kernel-parameters.html 3 . . : . systemd 260.2 KERNEL-COMMAND-LINE(7)