Chameleon

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Root/trunk/doc/BootHelp.txt

1The boot: prompt waits for you to type advanced startup options.
2If you don't type anything, the computer continues starting up normally. It
3uses the kernel and configuration files on the startup device, which it also
4uses as the root device.
5
6Advanced startup options use the following syntax:
7
8 [device]<kernel> [arguments]
9
10Example 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
26Example: mach_kernel rd=disk0s1 -v "Graphics Mode"="1920x1200x32"
27
28If the computer won't start up properly, you may be able to start it up using
29safe mode. Type -x to start up in safe mode, which ignores all cached
30driver files.
31
32Special booter hotkeys:
33-----------------------
34 F5 Rescans optical drive.
35 F10 Scans and displays all BIOS accessible drives.
36
37Special booter commands:
38------------------------
39 ?memory Displays information about the computer's memory.
40 ?video Displays VESA video modes supported by the computer's BIOS.
41 ?norescan Leaves optical drive rescan mode.
42
43Additional useful command-line options:
44---------------------------------------
45 config=<file> Use an alternate Boot.plist file.
46
47Options useful in the org.chameleon.Boot.plist file:
48----------------------------------------------------
49 Wait=Yes|No Prompt for a key press before starting the kernel.
50 "Quiet Boot"=Yes|No Use quiet boot mode (no messages or prompt).
51 Timeout=8 Number of seconds to pause at the boot: prompt.
52 "Instant Menu"=Yes Force displaying the partition selection menu.
53
54 "Default Partition" Sets the default boot partition,
55 =hd(x,y)|UUID|"Label" Specified as a disk/partition pair, an UUID, or a
56 label enclosed in quotes.
57
58 "Hide Partition" Remove unwanted partition(s) from the boot menu.
59 =partition Specified, possibly multiple times, as hd(x,y), an
60 [;partition2 ...] UUID or label enclosed in quotes.
61
62 "Rename Partition" Rename partition(s) for the boot menu.
63 =partition <alias> Where partition is hd(x,y), UUID or label enclosed
64 [;partition2 <alias2> in quotes. The alias can optionally be quoted too.
65 ...]
66
67 GUI=No Disable the GUI (enabled by default).
68 "Boot Banner"=Yes|No Show boot banner in GUI mode (disabled by default).
69 ShowInfo=No Disables display of partition and resolution details.
70 "Boot Banner"=No will also disable this info.
71 "Legacy Logo"=Yes|No Use the legacy grey apple logo (enabled by default).
72
73 RebootOnPanic=Yes|No (disabled by default).
74
75 EnableHiDPI=Yes|No Enable High resolution display (disabled by default).
76
77 BlackMode=Yes|No The new BlackMode loads the white Apple logo,
78 instead of the gray Apple logo, on a black background (disabled by default).
79
80 CsrActiveConfig=<value> Set CsrActiveConfig for OS 10.11.x, range 0..127 (default 0x67)
81
82 PciRoot=<value> Use an alternate value for PciRoot (default value 0).
83
84 UseKernelCache=Yes|No Yes will load pre-linked kernel and will ignore /E/E
85 and /S/L/E/Extensions.mkext.
86Default is No but Yes if you use Lion on a Raid partition.
87
88 KeyLayout=keymap Use to change the keyboard mapping of the bootloader
89 (e.g. KeyLayout=mac-fr)
90
91 HDAEnabler=Yes|No Automatic device-properties generation for audio controllers.
92 HDEFLayoutID=<value> Inject alternate value of layout-id for HDEF (HEX).
93 HDAULayoutID=<value> Inject alternate value of layout-id for HDAU (HEX).
94
95 GraphicsEnabler=Yes|No Automatic device-properties generation for graphics cards.
96 SkipIntelGfx=Yes|No Skip the Automatic device-properties generation for Intel cards.
97 SkipNvidiaGfx=Yes|No Skip the Automatic device-properties generation for Nvidia cards.
98 SkipAtiGfx=Yes|No Skip the Automatic device-properties generation for Ati cards.
99
100 NvidiaGeneric =Yes|No Use the classic Nvidia name for the SystemProfiler (disabled by default).
101 NvidiaSingle =Yes|No If you have two cards Nvidia and wants to inject only
102 first one then you can set this parameter (enbaled by default).
103
104 AtiConfig=<cardcfg> Use a different card config, e.g. AtiConfig=Megalodon.
105 AtiPorts=<value> Specify the number of ports, e.g. AtiPorts=2.
106 UseAtiROM=Yes|No Use an alternate Ati ROM image
107 (default path: /Extra/<vendorid>_<devid>_<subsysid>.rom)
108 UseNvidiaROM=Yes|No Use an alternate Nvidia ROM image
109 (default path: /Extra/<vendorid>_<devid>.rom)
110 VBIOS=Yes|No Inject VBIOS to device-properties.
111 display_0=<value> Inject alternate value of display-cfg into NVDA,Display-A@0 (HEX).
112 display_1=<value> Inject alternate value of display-cfg into NVDA,Display-B@1 (HEX).
113 IntelCapriFB=<value> For Intel Ivy Bridge, range 0-11.
114 IntelAzulFB=<value> For Intel Haswell, range 0-16.
115 IntelBdwFB=<value> For Intel Broadwell, range 0-19.
116 IntelSklFB=<value> For Intel Skylake, range 0-12.
117 InjectIntel-ig=<value> Inject alternate value into AAPL,ig-platform-id (HEX).
118
119 EnableBacklight=Yes Enable Back light option for NVIDIA and ATI
120 EnableDualLink=Yes Enable DualLink option for NVIDIA and ATI
121 EnableHDMIAudio=Yes Inject HDMI audio for NVIDIA and ATI.
122
123 EthernetBuiltIn=Yes|No Automatic "built-in"=YES device-properties generation
124 for ethernet interfaces.
125 ForceHPET=Yes|No Force HPET on (disabled by default).
126
127 USBBusFix=Yes Enable the XHCI, EHCI and UHCI fixes (disabled by default).
128 EHCIacquire=Yes Enable the EHCI fix (disabled by default).
129 UHCIreset=Yes Enable the UHCI fix (disabled by default).
130 USBLegacyOff=Yes Force USB Legacy off for XHCI and EHCI (disabled by default).
131 XHCILegacyOff=Yes Force USB Legacy off for XHCI (disabled by default).
132
133 Wake=No Disable wake up after hibernation (enbaled by default).
134 ForceWake=Yes Force using the sleepimage (disabled by default).
135 WakeImage=<file> Use an alternate sleepimage file
136 (default path is /private/var/vm/sleepimage).
137
138 DropSSDT=Yes Skip the SSDT tables while relocating the ACPI tables.
139 DSDT=<file> Use an alternate DSDT.aml file
140 (default path: /DSDT.aml
141 /Extra/DSDT.aml bt(0,0)/Extra/DSDT.aml).
142
143 GenerateCStates=Yes Enable auto generation of processor idle sleep states
144 (C-States).
145 GeneratePStates=Yes Enable auto generation of processor power performance
146 states (P-States).
147 CSTUsingSystemIO=Yes New C-State _CST generation method using SystemIO
148 registers instead of FixedHW.
149
150 EnableC2State=Yes Enable specific Processor power state, C2.
151 EnableC3State=Yes Enable specific Processor power state, C3.
152 EnableC4State=Yes Enable specific Processor power state, C4.
153 EnableC6State=Yes Enable specific Processor power state, C6.
154 EnableC7State=Yes Enable specific Processor power state, C7.
155
156 PrivateData=No Show masked data (serial number) in bdmesg log (enbaled by default).
157
158 ForceFullMemInfo=Yes Force SMBIOS Table 17 to be 27 bytes long (disabled by default).
159
160 SMBIOS=<file> Use an alternate SMBIOS.plist file
161 (default path: /smbios.plist /Extra/smbios.plist
162 bt(0,0)/Extra/smbios.plist).
163
164 SMBIOSdefaults=No Don't use the Default values for SMBIOS overriding
165 if smbios.plist doesn't exist, factory
166 values are kept.
167
168
169 KERNELPlist=<file> Use an alternate kernel.plist file
170 (default path: /Extra/Kernel.plist
171 bt(0,0)/Extra/kernel.plist).
172
173 "Scan Single Drive" Scan the drive only where the booter got loaded from.
174 =Yes|No Fix rescan issues when using a DVD reader in AHCI mode.
175 Rescan=Yes Enable CD-ROM rescan mode.
176 "Rescan Prompt"=Yes Prompts for enable CD-ROM rescan mode.
177 SystemId=<UUID> Set the system id manually to UUID.
178 Deprecated - Now SMsystemuuid in smbios.plist
179 SMUUID in smbios config (reserved field) isn't used then.
180 SystemType=<n> Set the system type to n, where n is between 0..6
181 (default=1 Desktop)
182 md0=<file> Load raw img file into memory for use as XNU's md0
183 ramdisk. /Extra/Postboot.img is used otherwise.
184

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