Boot Parameters

Parameter	Options	Default	Description
`Wait`	`Yes`, `No`	`No`	Prompts for a key press before loading the kernel.
`Quiet Boot`	`Yes`, `No`	`No`	Does not show any messages nor does it prompt for interaction before loading the kernel.
`Timeout`	seconds	`-`	Number of seconds to pause at the Chameleon startup screen.
`Instant Menu`	`Yes`	`No`	Displays the partition selection menu.
`Default Partition`	`hd(`x`,`y`)`	`-`	Sets the default boot partition, x is the disk number and y the partition number.
`GUI`	`Yes`, `No`	`Yes`	Enables or disables the Chameleon boot screen.
`Boot Banner`	`Yes`, `No`	`Yes`	Shows the boot banner in GUI mode.
`Legacy Logo`	`Yes`, `No`	`No`	Use the legacy grey apple logo instead of the `3D` logo while OSX loads.
`GraphicsEnabler`	`Yes`, `No`	`No`	Device-properties generation for NVidia and ATI cards.
`VideoROM`	path	`/NVIDIA.ROM`	Alternate path for ROM image for NVidia cards.
`VBIOS`	`Yes`, `No`	`No`	Inject VBIOS
`EthernetBuiltIn`	`Yes`, `No`	`No`	Device-properties generation for ethernet interfaces.
`USBBusFix`	`Yes`	`No`	Enable EHCI and UHCI fixes.
`EHCIacquire`	`Yes`	`No`	Enable EHCI fix.
`UHCIreset`	`Yes`	`No`	Enable the UHCI fix.
`Wake`	`No`	`Yes`	Disable wake-up after hibernation.
`ForceWake`	`Yes`	`No`	Force using the sleep image.
`WakeImage`	path	`/private/var/vm/sleepimage`	Use an alternate sleep image file.
`DropSSDT`	`Yes`	`No`	Skip the SSDT tables while relocating the ACPI tables.
`DSDT`	path	`/DSDT.aml`, `/Extra/DSDT.aml`	Use an alternate DSDT.
`SMBIOS`	path	`/smbios.plist`,`/Extra/smbios.plist`, `bt(0,0)/Extra/smbios.plist`	Use an alternate SMBIOS file.
`SMBIOSdefaults`	`No`	`Yes`	Whether to use the default values for SMBIOS overriding.
`Scan Single Drive`	`Yes`, `No`	`No`	Whether to scan only the drive where Chameleon was installed. Fixes certain issues when using a DVD reader in AHCI mode.
`Rescan`	`Yes`	`No`	Enable rescanning for CD-ROM.
`Rescan Prompt`	`Yes`, `No`	`No`	Prompts to enable CD-ROM rescan.