boot-132.tar.gz

[apple/boot.git] / i386 / strings / BootHelp.txt

diff --git a/i386/strings/BootHelp.txt b/i386/strings/BootHelp.txt
index 869e04de446c235af0ee18d683f19a63d410019c..9db09821ed0078dc2ec4af1a43c9854482d93efd 100644 (file)
--- a/i386/strings/BootHelp.txt
+++ b/i386/strings/BootHelp.txt
@@ -1,19 +1,35 @@
-
-The boot: prompt waits ten seconds for you to type advanced startup options.
+The boot: prompt waits for you to type advanced startup options.
 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>kernel> <arguments>
+uses as the root device. Advanced startup options use the following syntax:
+    [device]<kernel> [arguments]
+Example arguments include
+ device: rd=<BSD device name>       (e.g. rd=disk0s2)
+         rd=*<IODeviceTree path>    (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 boot configuration file)
+ "Graphics Mode"="WIDTHxHEIGHTxDEPTH" (e.g. "1024x768x32")
+    For VESA 3.0 graphics, you may append a refresh rate
+    after an "@" character (e.g. "1280x1024x32@75")
+ kernel flags                       (e.g. debug=0x144)
+ io=0xffffffff                      (defined in IOKit/IOKitDebug.h)
 
-For example, to start up from:
-  the first SCSI device, type: sd()mach_kernel
-  the b partition of the second IDE disk, type: hd(1,b)mach_kernel
-  the floppy disk but use the SCSI disk as the root device, type:
-    fd()mach_kernel rootdev=sd0a
+Example: mach_kernel rd=disk0s1 -v "Graphics Mode"="4096x4096x32@85"
 
 If the computer won't start up properly, you may be able to start it up using
-safe mode.  Type: -f
+safe mode.  Type -x to start up in safe mode, which ignores all cached
+driver files.
+
+Special booter commands:
+  ?memory    Displays information about the computer's memory.
+  ?video     Displays VESA video modes supported by the computer's BIOS.
 
-To continue starting up using standard options, press Return.
+Additional useful command-line options:
+  config=<file>             Use an alternate Boot.plist file.
+  platform=ACPI|X86PC       Use either ACPI or non-ACPI platform support.
 
+Options useful in the com.apple.Boot.plist file:
+  "Boot Graphics"=Yes|No    Use graphics mode or text mode when starting.
+  "Quiet Boot"=Yes|No       Use quiet boot mode (no messages or prompt).
+  Timeout=8                 Number of seconds to pause at the boot: prompt.