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diff --git a/Base/usr/share/man/man7/boot_parameters.md b/Base/usr/share/man/man7/boot_parameters.md new file mode 100644 index 0000000000..e54275f59a --- /dev/null +++ b/Base/usr/share/man/man7/boot_parameters.md @@ -0,0 +1,74 @@ +## Name + +Boot Parameters - optional parameters accepted by the kernel + +## Description + +Serenity's kernel can process parameters at boot time. +This functionality is used to control or augment the state of features during the initial +startup of the system. + +### Options + +The kernel boot parameters take the form of **`{option_name}={value}`**, where the **`={value}`** +trailer can be omitted for specific parameters. + +List of options: + +* **`acpi`** - This parameter expects one of the following values. **`on`** - Boot with full ACPI support, using ACPI + Machine Language interpretation (default). **`limited`** - Booth with limited ACPI support. **`off`** - Don't initialize ACPI at all. + +* **`ahci_reset_mode`** - This parameter expects one of the following values. **`controller`** - Reset just the AHCI controller on boot. + **`none`** - Don't perform any AHCI reset. **`complete`** - Reset the AHCI controller, and all AHCI ports on boot. + +* **`boot_mode`** - This parameter expects one of the following values: **`text`** - Boots the system in text only mode. + **`self-test`** - Boots the system in self-test, validation mode. **`graphical`** - Boots the system in the normal graphical mode. + +* **`boot_prof`** - If present on the command line, global system profiling will be enabled + as soon as possible during the boot sequence. Allowing you to profile startup of all applications. + +* **`disable_ide`** - If present on the command line, the IDE controller will not be initialized + during the boot sequence. Leaving only the AHCI and Ram Disk controllers. + +* **`disable_physical_storage`** - If present on the command line, neither AHCI, or IDE controllers will be initialized on boot. + +* **`disable_ps2_controller`** - If present on the command line, the I8042 keyboard controller will not be initialized on boot. + +* **`disable_uhci_controller`** - If present on the command line, the UHCI controller will not be initialized on boot. + +* **`disable_virtio`** - If present on the command line, virtio devices will not be detected, and initialized on boot. + +* **`force_pio`** - If present on the command line, the IDE controllers will be force into PIO mode when initialized IDE Channels on boot. + +* **`hpet`** - This parameter expects one of the following values. **`periodic`** - The High Precision Event Timer should + be configured in a periodic mode. **`nonperiodic`** - The High Precision Event Timer should eb configure din non-periodic mode. + +* **`init`** - This parameter expects the fully qualified path to the init program the Kernel should launch after boot. + This defaults to [`SystemServer`(7)](../man7/SystemServer.md). + +* **`init_args`** - This parameter expects a set of arguments to pass to the **`init`** program. + The value should be a set of strings separated by `,` characters. + +* **`pci_ecam`** - This parameter expects **`on`** or **`off`**, or **`per-device`**. + +* **`root`** - This parameter configures the device to use as the root file system. It defaults to **`/dev/hda`** if unspecified. + +* **`smp`** - This parameter expects a binary value of **`on`** or **`off`**. If enabled kernel will + use [APIC](https://en.wikipedia.org/wiki/Advanced_Programmable_Interrupt_Controller) mode + for handling interrupts instead of [PIC](https://en.wikipedia.org/wiki/Programmable_interrupt_controller) mode. + This parameter defaults to **`off`**. + +* **`time`** - This parameter expects one of the following values. **`modern`** - This configures the system to attempt + to use High Precision Event Timer (HPET) on boot. **`legacy`** - Configures the system to use the legacy programmable interrupt + time for managing system team. + +* **`vmmouse`** - This parameter expects a binary value of **`on`** or **`off`**. If enabled and + running on a VMWare Hypervisor, the kernel will enable absolute mouse mode. + +## See also + +* [`SystemServer`(7)](../man7/SystemServer.md). + + + + |