[MacOS] Flags and Parameters for OSX86′s Darwin Bootloader

This is for the matter of completeness of my own records. You will find this on many places on the net, prolly not that well documented ;-) Anyway, the following flags and parameters may be put into Darwin before bootprocess:

flag / parameter meaning
-f Force rebuild extensions cache
-v Verbose booting shows debug information
-s Boots into single user mode (means only terminal based mode)
-x Boots into safe mode
-legacy Boots into 32bit instead of 64bit mode
“rd=disk0s1″ Force to boot a specific partition on a specific drive (BSD drive notation, means disk0 = physical disk 1). Here disk1 partition 1 is forced to be booted.
“Graphics Mode=1024x768x32@75″ Forces to boot with a resolution of 1024 x 768 with 32bit colors at 75Hz
“Kernel=mach_kernel” Forces to load a specific kernel, helpful for testing of new kernels.
“cpus=1″ Force using only 1 CPU core, may help addressing issues
“idlehalt=0″ May solve stuttering and shuttering on dualcore CPUs
“platform=X86PC” Forces to not use powermanagement (disables ACPI)
“platform=ACPI” Forces to use powermanagement (enables ACPI, but may crash your system)
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25 Responses to “[MacOS] Flags and Parameters for OSX86′s Darwin Bootloader”

  1. [...] Once you’ve found your MacOS harddrive, the bootloader will require again some parameters. Simply enter -v -x as parameters and hit return (you may find more infos about these Darwin boot parameters here) [...]

  2. BuildSmart says:

    “rd=” is only available on certain bootloaders, the correct notation should have been “hd=”

  3. [...] to boot into Safe Mode with -x (see more Darwin flags here) and Repair Permissions from within the Disk [...]

  4. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Totenkopf4 GA-EX58-UD3R-SLI X5570-12GB ram-NVidia 9600GT-VX2250-PCIe1x DP Sli3132 eSata wExt [...]

  5. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ You dont have a DSDT file for this so you will need to select the easybeast method to install [...]

  6. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ TonyMac listing of alternative sources for information you may find useful [...]

  7. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Totenkopf4 GA-EX58-UD3R-SLI X5570-12GB -NVidia 9600GT GFX-VX2250-PCIe1x DP Sli3132 eSata wExt [...]

  8. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ THis is a list of links on the various Apple 10.6.8 updates [...]

  9. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ This is a link on install – discuss options and how to do it. a VERY GOOD READ [...]

  10. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ GA-EX58-UD3R-SLI X5570-12GB -NVidia 9600GT OSX Sl L and W7 all on a sesemie bun [...]

  11. Blank screen says:

    [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ TonyMac listing of alternative sources for information you may find usefull [...]

  12. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Now to use these here is what I have used- Best Startup Switch for inital install from iBoot w [...]

  13. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Also if you are booting w the White Apple Retail DVD ( picture of a Snow Leopard on it) You [...]

  14. [...] Can't get to SL Installmenu Z68X-UD3H-B3 Originally Posted by marco2228 Hello, I am Marco from Germany. First thanks for all the information here. I tried to install SL on my PC with following components: Gigabyte Z68X-UD3H-B3 (Bios version F12) i5- 2500K Sapphire HD 6870 1GB 4 GB Corsair Vengeance Ram (after installation 12GB will be completed) Crucial M4 SSD 128GB I tried to use Chameleon which didn't work. So I tried this method. http://tonymacx86.blogspot.de/2010/0…c-os-x-on.html Sometimes I see the Apple logo in the center of the screen. After the logo disappears, I see the screen in the attached picture screen with the in the upper left corner. Then the PC turns off. What could be the mistake/error? Thank you Marco Gutten Tag : Marco2228 – Alles Gute.. My german is as as bad as my english … I may suggest that your see if you can get it to boot up w iBoot 3.10.1 – w/o using the 6870 GFX card – as your CPu has HD3000 GFx on board. You may have to use the 1032x768x32 graphis setting in the command line initially as Apple didnt have support for HD3000 untill the Mac Mini and the MBP when Apple released a special upgrade for MBP 10.6.7 or in the combo update for 10.6.7 ( which in theory is rolled over to 10.6.8) THis means you need to select the MacMini option in the SMBios setting during MultiBeast not the default Mac3.1. Of course you are using a DSDT file and the onboard BIOS version matchs the DSDT file version – see our DSDT section. As you have a Sandy Bridge CPU – you will need to modify the installer procedure and include a added program called UPDATE Helper. THis is a short modified version fomr Jester 969 – How to do a sandybridge cpu w compatable hardware OSX hack 10.6.8 build. jester969 Typical installation steps are: 1) iBoot + Disk Utility + install Snow Leopard DVD (perform install via DVD) reboot 2) iBoot + Installed OSX HDD (boot with iBoot and loading OS via newly installed HDD) – get welcome screen 3) Run Update Helper and Reboot? 4) iBoot + Installed OSX HDD, run combo update 10.6.8 , DO NOT reboot 5) Run Multibeast and select option which are required to your board. 6) Reboot w/out iBoot Audio/Ethernet/DSDT DSDT and BIOS firmware must match to the corresponding number. Best Startup Switch for inital install from iBoot w Apple DVD -x -v -f acpi=off PCIRootUID=0 GraphicsEnabler=No npci=0×2000 If you need to know about the command line switches – see these links. Something usefull about command line switchs one needs to know ! http://www.ihackintosh.com/2009/05/b…in-bootloader/ This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ [...]

  15. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Is this Christmas time cause these kinda presents excite me …. luv to play w one of these. [...]

  16. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ After you inital install use this -v -f PCIRootUID=0 this is a shorted install procedure that [...]

  17. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ #1 GA-EX58-UD3R-SLI X5570-12GB 9600GT OSX SL Lion & W7 -sep drvs – GB score 9643 #2 ASRock [...]

  18. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ Also in the BIOS ( you use Optimal Settings as default) then check the ones we need – as well as [...]

  19. [...] This is from 2008 some of these have changed but it still a good read, http://news.metaparadigma.de/osx86-f…ootloader-104/ More on boot options and cache http://apple2pc.blogspot.com/2008/02…t-options.html [...]

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