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-rw-r--r--Documentation/kernel-parameters.txt75
1 files changed, 55 insertions, 20 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e88c7c150..d82ffd885 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -52,7 +52,7 @@ be entered as an environment variable, whereas its absence indicates that
it will appear as a kernel argument readable via /proc/cmdline by programs
running once the system is up.
- 53c7xx= [HW,SCSI]
+ 53c7xx= [HW,SCSI] Amiga SCSI controllers
adb_buttons= [HW,MOUSE]
@@ -70,6 +70,8 @@ running once the system is up.
arcrimi= [HW,NET]
+ ataflop= [HW, M68k]
+
atamouse= [HW,MOUSE] Atari Mouse.
atascsi= [HW,SCSI] Atari SCSI.
@@ -98,22 +100,22 @@ running once the system is up.
com90xx= [HW,NET]
- console=
+ console= [KNL] output console + comm spec (speed, control, parity)
cyclades= [HW,SERIAL] Cyclades multi-serial port adapter.
- debug [KNL] Enable kernel debugging.
+ debug [KNL] Enable kernel debugging (events log level).
decnet= [HW,NET]
- digi= [HW,SERIAL]
+ digi= [HW,SERIAL] io parameters + enable/disable command
digiepca= [HW,SERIAL]
dmascc= [HW,AX25,SERIAL] AX.25 Z80SCC driver with DMA
support available.
- dmasound= [HW,SOUND]
+ dmasound= [HW,SOUND] (sound subsystem buffers)
dtc3181e= [HW,SCSI]
@@ -123,7 +125,7 @@ running once the system is up.
edb= [HW,PS2]
- ether= [HW,NET] Ethernet.
+ ether= [HW,NET] Ethernet cards parameters (iomem,irq,dev_name).
fd_mcs= [HW,SCSI]
@@ -131,7 +133,7 @@ running once the system is up.
floppy= [HW]
- ftape= [HW] Floppy Tape subsystem.
+ ftape= [HW] Floppy Tape subsystem debugging options.
gdth= [HW,SCSI]
@@ -139,7 +141,8 @@ running once the system is up.
gvp11= [HW,SCSI]
- hd= [EIDE] IDE and EIDE hard drive subsystem.
+ hd= [EIDE] (E)IDE hard drive subsystem
+ geometry (Cyl/heads/sectors) or tune parameters.
hfmodem= [HW,AX25]
@@ -147,13 +150,27 @@ running once the system is up.
hisax= [HW,ISDN]
+ in2000= [HW,SCSI]
+
+ init= [KNL]
+
+
+
ibmmcascsi= [HW,MCA,SCSI] IBM MicroChannel SCSI adapter.
icn= [HW,ISDN]
+ ide?= [HW] (E)IDE subsystem : config (iomem/irq), tuning or
+ debugging (serialize,reset,no{dma,tune,probe}) or
+ chipset specific parameters
+
+ idebus= [HW] (E)IDE subsystem : VLB/PCI bus speed
+
in2000= [HW,SCSI]
- init= [KNL]
+ init= [KNL] default init level
+
+ initrd= [KNL] initial ramdisk path
ip= [PNP]
@@ -187,7 +204,7 @@ running once the system is up.
kbd-reset [VT]
- load_ramdisk= [RAM]
+ load_ramdisk= [RAM] initrd loading boolean
lp=0 [LP] Specify parallel ports to use, e.g,
or lp=port[,port...] lp=none,parport0 (lp0 not configured, lp1 uses
@@ -223,10 +240,13 @@ or lp=auto driver. 'lp=reset' (which can be specified in
mcdx= [HW,CD]
- md= [HW]
+ md= [HW] RAID subsystems devices and level
mdacon= [MDA]
+ mem= [KNL] force use XX Mb of memory when the kernel is not able
+ to see the whole system memory or for test
+
msmouse= [HW,MOUSE] Microsoft Mouse.
ncr5380= [HW,SCSI]
@@ -241,7 +261,9 @@ or lp=auto driver. 'lp=reset' (which can be specified in
nfsaddrs= [NFS]
- nfsroot= [NFS]
+ nfsroot= [NFS] nfs root filesystem for disk-less boxes
+
+ nmi_watchdog= [KNL, BUGS=ix86] debugging features for SMP kernels
no387 [BUGS=ix86] Tells the kernel to use the 387 maths
emulation library even if a 387 maths coprocessor
@@ -250,6 +272,10 @@ or lp=auto driver. 'lp=reset' (which can be specified in
noapic [SMP,APIC] Tells the kernel not to make use of any
APIC that may be present on the system.
+ noasync [HW, M68K] Disables async and sync negotiation for all devices.
+
+ nodisconnect [HW,SCSI, M68K] Disables SCSI disconnects.
+
no-halt [BUGS=ix86]
noinitrd [RAM] Tells the kernel not to load any configured
@@ -259,9 +285,11 @@ or lp=auto driver. 'lp=reset' (which can be specified in
nosmp [SMP] Tells an SMP kernel to act as a UP kernel.
+ nosync [HW, M68K] Disables sync negotiation for all devices.
+
optcd= [HW,CD]
- panic=
+ panic= [KNL] kernel behaviour on panic
parport=0 [HW,PPT] Specify parallel ports. 0
or parport=auto disables. Use 'auto' to force the driver
@@ -293,11 +321,11 @@ or parport=0xBBB[,IRQ[,DMA]] to use any IRQ/DMA settings detected
pg. [PARIDE]
- pirq= [SMP,APIC]
+ pirq= [SMP,APIC] mp-table
plip= [PPT,NET] Parallel port network link.
- profile=
+ profile= [KNL] enable kernel profiling via /proc/profile (param:log level)
prompt_ramdisk= [RAM] Whether to prompt for ramdisk before loading
its contents into memory.
@@ -312,16 +340,18 @@ or parport=0xBBB[,IRQ[,DMA]] to use any IRQ/DMA settings detected
reboot= [BUGS=ix86]
- reserve=
+ reserve= [KNL,BUGS] force the kernel to ignore some iomem area
riscom8= [HW,SERIAL]
ro [KNL] Mount root device read-only on boot.
- root=
+ root= [KNL] root filesystem
rw [KNL] Mount root device read-write on boot.
+ S [KNL] run init in single mode
+
sbpcd= [HW,CD] Soundblaster CD adapter.
scsi_logging= [SCSI]
@@ -336,12 +366,14 @@ or parport=0xBBB[,IRQ[,DMA]] to use any IRQ/DMA settings detected
specialix= [HW,SERIAL] Specialix multi-serial port adapter.
- st= [HW]
+ st= [HW] SCSI tape parameters (buffers, ..)
st0x= [HW,SCSI]
stram_swap= [HW]
+ switches= [HW, M68K]
+
sym53c416= [HW,SCSI]
sym53c8xx= [HW,SCSI]
@@ -356,7 +388,10 @@ or parport=0xBBB[,IRQ[,DMA]] to use any IRQ/DMA settings detected
u14-34f= [HW,SCSI]
- video= [FB]
+ video= [FB] frame buffer configuration
+
+ vga= [KNL] on ix386, enable to choose a peculiar video mode
+ vga=ask
wd33c93= [HW,SCSI]
@@ -364,6 +399,6 @@ or parport=0xBBB[,IRQ[,DMA]] to use any IRQ/DMA settings detected
wdt= [HW]
- xd= [HW,XT]
+ xd= [HW,XT] Original XT pre-IDE (RLL encoded) disks
xd_geo= [HW,XT]