1 | The boot: prompt waits for you to type advanced startup options.␊ |
2 | If you don't type anything, the computer continues starting up normally. It␊ |
3 | uses the kernel and configuration files on the startup device, which it also␊ |
4 | uses as the root device.␊ |
5 | ␊ |
6 | Advanced startup options use the following syntax:␊ |
7 | ␊ |
8 | [device]<kernel> [arguments]␊ |
9 | ␊ |
10 | Example arguments include␊ |
11 | ␊ |
12 | device: rd=<BSD device name> (e.g. rd=disk0s2)␊ |
13 | rd=*<IODeviceTree path> (e.g. rd=*/PCI0@0/CHN0@0/@0:1)␊ |
14 | ␊ |
15 | kernel: kernel name (e.g. "mach_kernel" - must be in "/" )␊ |
16 | ␊ |
17 | flags: -v (verbose), -s (single user mode),␊ |
18 | -x (safe mode), -f (ignore caches),␊ |
19 | -F (ignore "Kernel Flags" specified in boot configuration file)␊ |
20 | ␊ |
21 | "Graphics Mode"="WIDTHxHEIGHTxDEPTH" (e.g. "1024x768x32")␊ |
22 | ␊ |
23 | kernel flags (e.g. debug=0x144)␊ |
24 | io=0xffffffff (defined in IOKit/IOKitDebug.h)␊ |
25 | ␊ |
26 | Example: mach_kernel rd=disk0s1 -v "Graphics Mode"="1920x1200x32"␊ |
27 | ␊ |
28 | If the computer won't start up properly, you may be able to start it up using safe mode.␊ |
29 | Type -x to start up in safe mode, which ignores all cached driver files.␊ |
30 | ␊ |
31 | Special booter hotkeys:␊ |
32 | -----------------------␊ |
33 | F5 Rescans optical drive.␊ |
34 | F10 Scans and displays all BIOS accessible drives.␊ |
35 | ␊ |
36 | Special booter commands:␊ |
37 | ------------------------␊ |
38 | ?memory Displays information about the computer's memory.␊ |
39 | ?video Displays VESA video modes supported by the computer's BIOS.␊ |
40 | ?norescan Leaves optical drive rescan mode.␊ |
41 | ␊ |
42 | Additional useful command-line options:␊ |
43 | ---------------------------------------␊ |
44 | config=<file> Use an alternate Boot.plist file.␊ |
45 | ␊ |
46 | Options useful in the org.chameleon.Boot.plist file:␊ |
47 | ----------------------------------------------------␊ |
48 | Wait=Yes|No Prompt for a key press before starting the kernel.␊ |
49 | "Quiet Boot"=Yes|No Use quiet boot mode (no messages or prompt).␊ |
50 | Timeout=8 Number of seconds to pause at the boot: prompt.␊ |
51 | "Instant Menu"=Yes Force displaying the partition selection menu.␊ |
52 | ␊ |
53 | "Default Partition" Sets the default boot partition,␊ |
54 | =hd(x,y)|UUID|"Label" Specified as a disk/partition pair, an UUID, or a label enclosed in quotes.␊ |
55 | ␊ |
56 | "Hide Partition" Remove unwanted partition(s) from the boot menu.␊ |
57 | =partition Specified, possibly multiple times, as hd(x,y), an␊ |
58 | [;partition2 ...] UUID or label enclosed in quotes.␊ |
59 | ␊ |
60 | "Rename Partition" Rename partition(s) for the boot menu.␊ |
61 | =partition <alias> Where partition is hd(x,y), UUID or label enclosed␊ |
62 | [;partition2 <alias2> in quotes. The alias can optionally be quoted too.␊ |
63 | ...]␊ |
64 | ␊ |
65 | GUI=No Disable the GUI (enabled by default).␊ |
66 | "Boot Banner"=Yes|No Show boot banner in GUI mode (enabled by default).␊ |
67 | ShowInfo=No Disables display of partition and resolution details.␊ |
68 | "Boot Banner"=No will also disable this info.␊ |
69 | "Legacy Logo"=Yes|No Use the legacy grey apple logo (disabled by default).␊ |
70 | ␊ |
71 | PciRoot=<value> Use an alternate value for PciRoot (default value 0).␊ |
72 | ␊ |
73 | UseKernelCache=Yes|No Yes will load pre-linked kernel and will ignore /E/E and /S/L/E/Extensions.mkext.␊ |
74 | Default is No but Yes if you use Lion on a Raid partition.␊ |
75 | ␊ |
76 | KeyLayout=keymap Use to change the keyboard mapping of the bootloader␊ |
77 | (e.g. KeyLayout=mac-fr)␊ |
78 | ␊ |
79 | HDAEnabler=Yes|No Automatic device-properties generation for audio controllers.␊ |
80 | HDEFLayoutID=<value> Inject alternate value of layout-id for HDEF (HEX).␊ |
81 | HDAULayoutID=<value> Inject alternate value of layout-id for HDAU (HEX).␊ |
82 | ␊ |
83 | GraphicsEnabler=Yes|No Automatic device-properties generation for graphics cards.␊ |
84 | IGPlatformID=<value> Override or set Intel HD Graphics Platform ID␊ |
85 | IGPEnabler=Yes|No Automatic device-properties generation for Intel IGP when GraphicsEnabler=No␊ |
86 | IGPDeviceID=<value> Override default unsupported device ID injection␊ |
87 | ␊ |
88 | NvidiaGeneric =Yes|No Use the classic Nvidia name for the SystemProfiler (enabled by default).␊ |
89 | UseNvidiaROM=Yes|No Use an alternate Nvidia ROM image (default path: /Extra/<vendorid>_<devid>.rom)␊ |
90 | display_0=<value> Inject alternate value of display-cfg into NVDA,Display-A@0 (HEX).␊ |
91 | display_1=<value> Inject alternate value of display-cfg into NVDA,Display-B@1 (HEX).␊ |
92 | ␊ |
93 | AtiConfig=<cardcfg> Use a different card config, e.g. AtiConfig=Megalodon.␊ |
94 | AtiPorts=<value> Specify the number of ports, e.g. AtiPorts=2.␊ |
95 | UseAtiROM=Yes|No Use an alternate Ati ROM image (default path: /Extra/<vendorid>_<devid>_<subsysid>.rom)␊ |
96 | VBIOS=Yes|No Inject VBIOS to device-properties.␊ |
97 | ␊ |
98 | EnableBacklight=Yes␉ Enable Back light option for NVIDIA and ATI␊ |
99 | EnableDualLink=Yes␉ Enable DualLink option for NVIDIA and ATI␊ |
100 | EnableHDMIAudio=Yes␉ Inject HDMI audio for NVIDIA and ATI.␊ |
101 | ␊ |
102 | EthernetBuiltIn=Yes|No Automatic "built-in"=YES device-properties generation for ethernet interfaces. ␊ |
103 | ForceHPET=Yes|No Force HPET on (disabled by default).␊ |
104 | ␊ |
105 | USBBusFix=Yes Enable the EHCI and UHCI fixes (disabled by default).␊ |
106 | EHCIacquire=Yes Enable the EHCI fix (disabled by default).␊ |
107 | UHCIreset=Yes Enable the UHCI fix (disabled by default).␊ |
108 | USBLegacyOff=Yes Force USB Legacy off (disabled by default).␊ |
109 | ␊ |
110 | Wake=No Disable wake up after hibernation (enbaled by default).␊ |
111 | ForceWake=Yes Force using the sleepimage (disabled by default).␊ |
112 | WakeImage=<file> Use an alternate sleepimage file ␊ |
113 | (default path is /private/var/vm/sleepimage).␊ |
114 | ␊ |
115 | DropSSDT=Yes Skip the SSDT tables while relocating the ACPI tables.␊ |
116 | DSDT=<file> Use an alternate DSDT.aml file ␊ |
117 | (default paths: /DSDT.aml /Extra/DSDT.aml bt(0,0)/Extra/DSDT.aml).␊ |
118 | ␊ |
119 | GenerateCStates=Yes Enable auto generation of processor idle sleep states (C-States).␊ |
120 | GeneratePStates=Yes Enable auto generation of processor power performance states (P-States).␊ |
121 | CSTUsingSystemIO=Yes New C-State _CST generation method using SystemIO registers instead of FixedHW.␊ |
122 | ␊ |
123 | EnableC2State=Yes Enable specific Processor power state, C2.␊ |
124 | EnableC3State=Yes Enable specific Processor power state, C3.␊ |
125 | EnableC4State=Yes Enable specific Processor power state, C4.␊ |
126 | ␊ |
127 | PrivateData=No Show masked data (serial number) in bdmesg log (enbaled by default).␊ |
128 | ␊ |
129 | ForceFullMemInfo=Yes Force SMBIOS Table 17 to be 27 bytes long (disabled by default).␊ |
130 | ␊ |
131 | SMBIOS=<file> Use an alternate SMBIOS.plist file␊ |
132 | (default path: /smbios.plist /Extra/smbios.plist␊ |
133 | bt(0,0)/Extra/smbios.plist).␊ |
134 | ␊ |
135 | SMBIOSdefaults=No Don't use the Default values for SMBIOS overriding if smbios.plist doesn't exist, ␊ |
136 | factory values are kept.␊ |
137 | ␊ |
138 | "Scan Single Drive" Scan the drive only where the booter got loaded from.␊ |
139 | =Yes|No Fix rescan issues when using a DVD reader in AHCI mode. ␊ |
140 | Rescan=Yes Enable CD-ROM rescan mode.␊ |
141 | "Rescan Prompt"=Yes Prompts for enable CD-ROM rescan mode.␊ |
142 | SystemId=<UUID> Set the system id manually to UUID.␊ |
143 | Deprecated - Now SMsystemuuid in smbios.plist␊ |
144 | SMUUID in smbios config (reserved field) isn't used then.␊ |
145 | SystemType=<n> Set the system type to n, where n is between 0..6␊ |
146 | (default=1 Desktop)␊ |
147 | md0=<file> Load raw img file into memory for use as XNU's md0␊ |
148 | ramdisk. /Extra/Postboot.img is used otherwise.␊ |
149 | |