Troubleshooting: Issuing Boot Flags - Troubleshooting - Hackintosh Zone Jump to content
  • 0

Troubleshooting: Issuing Boot Flags


Deepak    1,701

Troubleshooting: Issuing Boot FlagsYou may have to type extra boot arguments in the system at the boot screen. You can hit arrow-down as well on the boot screen to access some standard boot options. Here are a list of things you can try in order to troubleshoot booting. You will have to troubleshoot this part yourself according to your own hardware specs. Here are some common boot flags.GraphicsEnabler=NoNo bootloader help for injection of graphics card devices and names. See Reminder: NVIDIA GeForce 6xx/7xx Kepler Cards work with GraphicsEnabler=No-vVerbose Mode- allowing you to see the loading of the OS instead of the Apple Boot Screen. Same as holding "v" on a Mac at startup.-xSafe Mode- loads only basic drivers. Same as holding "x" on a Mac at startup.-sSingle user mode- allows user to access the command line before booting the OS. Same as holding "s" on a Mac at startup.npci=0x3000This setting may be necessary on motherboards using Fermi and Kepler NVIDIA cards for installation.PCIRootUID=0PCIRootUID=1 is Necessity For Award Bios User. Set it manually to 0 Or 1 by typing this command at the boot screen above.Timeout=Number of seconds to countdown before choosing the default partition.Scan Single Drive=Yes | NoScan the drive only where the booter got loaded from. Fix rescan pbs when using a DVD reader in AHCI mode .Instant Menu=Yes | NoForce displaying the partition selection menu.GUI=Yes | NoEnable/Disable the GUI.Boot Banner=Yes | NoShow boot banner in GUI mode.Wait=Yes | NoPrompt for a key press before starting the kernel.DSDT=Use an alternate DSDT.aml file [Defaults /DSDT.aml /Extra/DSDT.aml]DropSSDT=Yes | NoSkip the SSDT tables while relocating the ACPI tables.RestartFix=Yes | NoIf disabled, no FACP patch will be done at boot time.CSTUsingSystemIO=Yes | NoGenerateCStates=Yes | NoEnable auto generation of processor idle sleep statesGeneratePStates=Yes | NoEnable auto generation of processor power performance states .EnableC2State=Yes | NoEnable specific Processor power state, C2.EnableC3State=Yes | NoEnable specific Processor power state, C3.EnableC4State=Yes | NoEnable specific Processor power state, C4.Wake=Yes | NoDisable wake up after hibernation .ForceWake=Yes | NoForce using the sleepimage .Hide Partition="[;...]"Remove unwanted partition(s) from the boot menu. Specified, possibly multiple times, as hd(x,y), an uuid or label enclosed in quotes .Rename Partition"="[;...]"Rename partition(s) for the boot menu. Where partition is hd(x,y), uuid or label enclosed in quotes. The alias can optionally be quoted too.SMBIOS=Use an alternate SMBIOS.plist file [Defaults /Extra/SMBIOS.plist]SMBIOSdefaults=Yes | NoDon't use the default values for smbios.plistPCIRootUID=0 | 1Use an alternate value for PciRoot.AtiPorts=<0-6>Change the number of graphics ports reported to OSX.AtiConfig=Use a different framebuffer personality.UseAtiROM=Yes | NoUse an alternate Ati ROM image with path /Extra/__.romUseNvidiaROM=Yes | NoUse an alternate Nvidia ROM image with path /Extra/_.romVBIOS=Yes | NoInject NVIDIA VBIOS into device-properties.EthernetBuiltIn=Yes | NoAutomatic device-properties generation for ethernet interfaces.GraphicsEnabler=Yes | NoAutomatic device-properties generation for gfx cards.ForceHPET=Yes | NoForce Enable HPET .USBBusFix=Yes | NoEnable all of the USB fixesEHCIacquire=Yes | NoEnable the EHCI fix .UHCIreset=Yes | NoEnable the UHCI fix .USBLegacyOff=Yes | NoEnable the USB Legacy fix.EHCIhard=Yes | Nocpus=Force physical cpus count (all cores in all cpus), use only if autodetection doesn't work.darkwake=0 | 1npci=0xGoverns the initialization order and method of the PCI bus [Default 0x3000].AHCIDisk=Increases AHCI debugging level, usually "1" when OS X boots too quicklydart=0 | 1Enables or disables extended memory mappingnv_disable=0 | 1Disables QE/CI on nVidia graphics cards .Basic TroubleshootingDSDT=NullThis option can be used to troubleshoot systems using UserDSDT.config=NullThis option nullifies the effects of the current org.chameleon.Boot.plistsmbios=NullThis option nullifies the effects of the current smbios.plist.npci=0x3000 | 0x2000 | (nothing)These options control the initialization order and can prevent random kernel panics.cpus=1This is usually necessary for laptops, and CPUs that are unknown to the OS.PCIRootUID=0 | 1These options depend on the graphics card and prevent hangs at [PCI Configuration begin]

Edited by Deepak
  • Like 7

Share this post

Link to post
Share on other sites

2 answers to this question

Recommended Posts

  • 0
emon ahmed    0

how can i run asus dvd player when i insert a dvd movie?...
my pc's config...

intel core-i 3.
ram - 4GB DDR3
Grfx-radeon 5450HD
Etharnet built in... i don't know...

and now i installed mountain lion 10.8.5 niresh with update kext 10.
please help me..... please

Share this post

Link to post
Share on other sites
  • 0
tom.webbiy    0

i am not able to see niresh mavericks boot screen after booting to usb drive which has niresh mavrick os x written on it using boot disk utility / and also tried writing with Transmac same issue Grub bootloader starts when i select usb for boot, i am running on dual boot windows 7 and ubuntu..... someone please reply how to boot usb

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Download Hackintosh

  • Files

  • Posts

    • Hi guys, managed to make a hackintosh and everything is going great (Wifi, cpu ECT)   But it's pretty damn slow, i tried one of my favorite lightweight games to test (The Ultimate Doom) and it could barely run THAT! This is my first time and i have no idea how to get my 8570 to work.. Probably should have read a bit, eh? Lol.   And no I don't plan on using my hackintosh for gaming, but god so slow..   Thanks, help would be very appreciated. Edit: It's the dedicated version btw, and in about my mac I see "Graphics Display 3 MB" maybe the issue?  
    • Trying to boot to the installer but I get instant reboot after the following: I am using the following flag (I tried a variation - I need USBBusFix=Yes otherwise it fails even earlier): All my USB devices turn off just before it reboots, so I'm guessing it loses connection to the USB install media - but I can't work out why it's disabling all the USB's. CPU: AMD FX 8350 (8-core)
      RAM: 12GB HyperX Fury
      Motherboard: AsRock Fatal1ty 990FX Killer
      GPU: Gigabyte 4GB NVIDIA GTX 960
    • Saludos!   Tengo el mismo error (RAM a 667mhz), con una placa base ASUS (y mi cpu es el fx 6300).   Lograste solucionarlo?
    • Hi guys. Well, this is my second day of troubles, I touched everything, I installed max like 5 times in the same day, trying to figure out things and well. My Mac it display my graphic card on the #About this Mac tab With 2047MB ( So I guess all is right ) I installed the latest nvida drivers and on clover I activated the NvidaWeb. The problem is the resolution. Max resolution allowed is 1280 x 1024 and 800 x 600. I used to boot with nvd_drv 1 with nvd dry 0, I used to boot with all that things, and without them.  BUT No way to fix the resolution. Someone knows what-s going wrong and how can I fix it? Bdw im using iMac14,2 and OS X Sierra 10.12.3 Im connecting to the screen with DVI adapter. ( Maybe that causes the problem ) But it shows Im running 2047 MB so... idk why I can't change resolution. Thanks! ================================= SOLVED EDIT: Hi guys, in Display Resolution, I just set it in "Default for display" and after that pressing "THE WINDOWS BUTTON KEY, IN MY CASE, IDK WHAT KEY IS THAT IN MAC KEYBOARD, I THINK THE CONTROL ONE OR IDK" PRESSING that key I selected Scaled, and it appears more options and resolutions. There is a video on youtube about that called "Mac OS X Display Resolution" If someone has the same trouble.
    • Hello , i have a big problem , help me please, i have installed properly Mac OS Sierra , but now i can’t boot Windows 10, when i click on a image , which has written for example boot Windows from legacy hd3 , it blocks on an image with the Apple sign on an hard disk image, and when i enter the bios i can’t see tue hard disk in boot options, how can i add Images? Pleaseeeee
  • Download Statistics

    • Files
    • Comments
    • Reviews