Index: trunk/doc/BootHelp.txt =================================================================== --- trunk/doc/BootHelp.txt (revision 986) +++ trunk/doc/BootHelp.txt (revision 987) @@ -2,120 +2,121 @@ If you don't type anything, the computer continues starting up normally. It uses the kernel and configuration files on the startup device, which it also uses as the root device. - + Advanced startup options use the following syntax: - + [device] [arguments] - + Example arguments include - + device: rd= (e.g. rd=disk0s2) rd=* (e.g. rd=*/PCI0@0/CHN0@0/@0:1) - + kernel: kernel name (e.g. "mach_kernel" - must be in "/" ) - + flags: -v (verbose) -s (single user mode) -x (safe mode) -f (ignore caches) -F (ignore "Kernel Flags" specified in boot configuration file) "Graphics Mode"="WIDTHxHEIGHTxDEPTH" (e.g. "1024x768x32") - + kernel flags (e.g. debug=0x144) io=0xffffffff (defined in IOKit/IOKitDebug.h) - + Example: mach_kernel rd=disk0s1 -v "Graphics Mode"="1920x1200x32" - + If the computer won't start up properly, you may be able to start it up using safe mode. Type -x to start up in safe mode, which ignores all cached driver files. - + Special booter hotkeys: F5 Rescans optical drive. F10 Scans and displays all BIOS accessible drives. - + Special booter commands: ?memory Displays information about the computer's memory. ?video Displays VESA video modes supported by the computer's BIOS. ?norescan Leaves optical drive rescan mode. - + Additional useful command-line options: config= Use an alternate Boot.plist file. - + Options useful in the com.apple.Boot.plist file: Wait=Yes|No Prompt for a key press before starting the kernel. "Quiet Boot"=Yes|No Use quiet boot mode (no messages or prompt). Timeout=8 Number of seconds to pause at the boot: prompt. "Instant Menu"=Yes Force displaying the partition selection menu. - + "Default Partition" Sets the default boot partition, =hd(x,y)|UUID|"Label" Specified as a disk/partition pair, an UUID, or a label enclosed in quotes. - + "Hide Partition" Remove unwanted partition(s) from the boot menu. =partition Specified, possibly multiple times, as hd(x,y), an [;partition2 ...] UUID or label enclosed in quotes. - + "Rename Partition" Rename partition(s) for the boot menu. =partition Where partition is hd(x,y), UUID or label enclosed [;partition2 in quotes. The alias can optionally be quoted too. ...] - + GUI=No Disable the GUI (enabled by default). "Boot Banner"=Yes|No Show boot banner in GUI mode (enabled by default). "Legacy Logo"=Yes|No Use the legacy grey apple logo (disabled by default). - + PciRoot= Use an alternate value for PciRoot (default value 0). - + UseKernelCache=Yes|No Default is No. Yes will load pre-linked kernel and will ignore /E/E and /S/L/E/Extensions.mkext. - + GraphicsEnabler=Yes|No Automatic device-properties generation for gfx cards. AtiConfig= Use a different card config UseAtiROM=Yes|No Use an alternate Ati ROM image - (path: /Extra/__.rom) + (path: /Extra/__.rom) UseNvidiaROM=Yes|No Use an alternate Nvidia ROM image - (path: /Extra/_.rom) + (path: /Extra/_.rom) VBIOS=Yes|No Inject NVIDIA VBIOS into device-properties. - display_0= Inject alternate value of display-cfg into NVDA,Display-A@0, MUST BE 8 Chars in length (HEX) - display_1= Inject alternate value of display-cfg into NVDA,Display-B@1, MUST BE 8 Chars in length (HEX) + display_0= Inject alternate value of display-cfg into NVDA,Display-A@0. + MUST BE 8 Chars in length (HEX) + display_1= Inject alternate value of display-cfg into NVDA,Display-B@1. + MUST BE 8 Chars in length (HEX) - EthernetBuiltIn=Yes|No Automatic "built-in"=yes device-properties generation for ethernet interfaces. - + USBBusFix=Yes Enable all USB fixes below: EHCIacquire=Yes Enable the EHCI fix (disabled by default). UHCIreset=Yes Enable the UHCI fix (disabled by default). USBLegacyOff=Yes Enable the USB Legacy fix (disabled by default). - + ForceHPET=Yes|No Force Enable HPET. - + Wake=No Disable wake up after hibernation (default: enabled). ForceWake=Yes Force using the sleepimage (disabled by default). WakeImage= Use an alternate sleepimage file. (default path is /private/var/vm/sleepimage). - + DropSSDT=Yes Skip the SSDT tables while relocating the ACPI tables. DSDT= Use an alternate DSDT.aml file (default paths: /DSDT.aml /Extra/DSDT.aml bt(0,0)/Extra/DSDT.aml). - + GenerateCStates=Yes Enable auto generation of processor idle sleep states - (C-States). + (C-States). GeneratePStates=Yes Enable auto generation of processor power performance - states (P-States). - + states (P-States). + EnableC2State=Yes Enable specific Processor power state, C2. EnableC3State=Yes Enable specific Processor power state, C3. EnableC4State=Yes Enable specific Processor power state, C4. - + SMBIOS= Use an alternate SMBIOS.plist file (default paths: /Extra/SMBIOS.plist bt(0,0)/Extra/SMBIOS.plist). - + SMBIOSdefaults=No Don't use the Default values for SMBIOS overriding if smbios.plist doesn't exist, factory values are kept. - + "Scan Single Drive" Scan the drive only where the booter got loaded from. =Yes|No Fix rescan pbs when using a DVD reader in AHCI mode. Rescan=Yes Enable CD-ROM rescan mode. @@ -123,6 +124,6 @@ SystemId= Set manually the system id UUID, SMUUID in smbios config (reserved field) isn't used. SystemType= Set the system type where n is between 0..6 - (default =1 (Desktop) + (default =1 (Desktop) md0= Load raw img file into memory for use as XNU's md0 ramdisk. /Extra/Postboot.img is used otherwise.