APM Advanced Power Management support is enabled.
AX25 Appropriate AX.25 support is enabled.
CD Appropriate CD support is enabled.
+ DEVFS devfs support is enabled.
DRM Direct Rendering Management support is enabled.
EDD BIOS Enhanced Disk Drive Services (EDD) is enabled
EFI EFI Partitioning (GPT) is enabled
MTD MTD support is enabled.
NET Appropriate network support is enabled.
NUMA NUMA support is enabled.
- GENERIC_TIME The generic timeofday code is enabled.
NFS Appropriate NFS support is enabled.
OSS OSS sound support is enabled.
PARIDE The ParIDE subsystem is enabled.
acpi_irq_isa= [HW,ACPI] If irq_balance, mark listed IRQs used by ISA
Format: <irq>,<irq>...
- acpi_os_name= [HW,ACPI] Tell ACPI BIOS the name of the OS
- Format: To spoof as Windows 98: ="Microsoft Windows"
-
acpi_osi= [HW,ACPI] empty param disables _OSI
acpi_serialize [HW,ACPI] force serialization of AML methods
override platform specific driver.
See also Documentation/acpi-hotkey.txt.
- acpi_pm_good [IA-32,X86-64]
- Override the pmtimer bug detection: force the kernel
- to assume that this machine's pmtimer latches its value
- and always returns good values.
-
enable_timer_pin_1 [i386,x86-64]
Enable PIN 1 of APIC timer
Can be useful to work around chipset bugs
Value can be changed at runtime via
/selinux/checkreqprot.
- clock= [BUGS=IA-32, HW] gettimeofday clocksource override.
- [Deprecated]
- Forces specified clocksource (if avaliable) to be used
- when calculating gettimeofday(). If specified
- clocksource is not avalible, it defaults to PIT.
+ clock= [BUGS=IA-32,HW] gettimeofday timesource override.
+ Forces specified timesource (if avaliable) to be used
+ when calculating gettimeofday(). If specicified
+ timesource is not avalible, it defaults to PIT.
Format: { pit | tsc | cyclone | pmtmr }
disable_8254_timer
debug [KNL] Enable kernel debugging (events log level).
- debug_locks_verbose=
- [KNL] verbose self-tests
- Format=<0|1>
- Print debugging info while doing the locking API
- self-tests.
- We default to 0 (no extra messages), setting it to
- 1 will print _a lot_ more information - normally
- only useful to kernel developers.
-
decnet= [HW,NET]
Format: <area>[,<node>]
See also Documentation/networking/decnet.txt.
+ devfs= [DEVFS]
+ See Documentation/filesystems/devfs/boot-options.
+
dhash_entries= [KNL]
Set number of hash buckets for dentry cache.
ips= [HW,SCSI] Adaptec / IBM ServeRAID controller
See header of drivers/scsi/ips.c.
- ports= [IP_VS_FTP] IPVS ftp helper module
- Default is 21.
- Up to 8 (IP_VS_APP_MAX_PORTS) ports
- may be specified.
- Format: <port>,<port>....
-
irqfixup [HW]
When an interrupt is not handled search all handlers
for it. Intended to get systems with badly broken
noapic [SMP,APIC] Tells the kernel to not make use of any
IOAPICs that may be present in the system.
- apic [APIC,i386] Override default heuristics to enable/disable the local
- APIC by CONFIG_X86_APIC_AUTO. When this option is set the kernel
- will try to use the local APIC.
-
noasync [HW,M68K] Disables async and sync negotiation for
all devices.
nocache [ARM]
- nodelayacct [KNL] Disable per-task delay accounting
-
nodisconnect [HW,SCSI,M68K] Disables SCSI disconnects.
noexec [IA-64]
If enabled at boot time, /selinux/disable can be used
later to disable prior to initial policy load.
- selinux_compat_net =
- [SELINUX] Set initial selinux_compat_net flag value.
- Format: { "0" | "1" }
- 0 -- use new secmark-based packet controls
- 1 -- use legacy packet controls
- Default value is 0 (preferred).
- Value can be changed at runtime via
- /selinux/compat_net.
-
serialnumber [BUGS=IA-32]
sg_def_reserved_size= [SCSI]
time Show timing data prefixed to each printk message line
- clocksource= [GENERIC_TIME] Override the default clocksource
- Override the default clocksource and use the clocksource
- with the name specified.
-
tipar.timeout= [HW,PPT]
Set communications timeout in tenths of a second
(default 15).
usbhid.mousepoll=
[USBHID] The interval which mice are to be polled at.
- vdso= [IA-32]
- vdso=1: enable VDSO (default)
- vdso=0: disable VDSO mapping
-
video= [FB] Frame buffer configuration
See Documentation/fb/modedb.txt.
decrease the size and leave more room for directly
mapped kernel RAM.
- vmhalt= [KNL,S390] Perform z/VM CP command after system halt.
- Format: <command>
-
- vmpanic= [KNL,S390] Perform z/VM CP command after kernel panic.
- Format: <command>
+ vmhalt= [KNL,S390]
- vmpoff= [KNL,S390] Perform z/VM CP command after power off.
- Format: <command>
+ vmpoff= [KNL,S390]
waveartist= [HW,OSS]
Format: <io>,<irq>,<dma>,<dma2>