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CONFIG_CMDLINE_BOOL: Built-in kernel command line

General informations

The Linux kernel configuration item CONFIG_CMDLINE_BOOL has multiple definitions:

Built-in kernel command line found in arch/mips/Kconfig.debug

The configuration item CONFIG_CMDLINE_BOOL:

Help text

For most systems, it is firmware or second stage bootloader that by default specifies the kernel command line options. However, it might be necessary or advantageous to either override the default kernel command line or add a few extra options to it. For such cases, this option allows you to hardcode your own command line options directly into the kernel. For that, you should choose 'Y' here, and fill in the extra boot arguments in CMDLINE.

The built-in options will be concatenated to the default command line if CMDLINE_OVERRIDE is set to 'N'. Otherwise, the default command line will be ignored and replaced by the built-in string.

Most MIPS systems will normally expect 'N' here and rely upon the command line from the firmware or the second-stage bootloader.

Built-in kernel command line found in arch/tile/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

Allow for specifying boot arguments to the kernel at build time. On some systems (e.g. embedded ones), it is necessary or convenient to provide some or all of the kernel boot arguments with the kernel itself (that is, to not rely on the boot loader to provide them.)

To compile command line arguments into the kernel, set this option to 'Y', then fill in the the boot arguments in CMDLINE.

Systems with fully functional boot loaders (e.g. mboot, or if booting over PCI) should leave this option set to 'N'.

Built-in kernel command line found in arch/x86/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

Allow for specifying boot arguments to the kernel at build time. On some systems (e.g. embedded ones), it is necessary or convenient to provide some or all of the kernel boot arguments with the kernel itself (that is, to not rely on the boot loader to provide them.)

To compile command line arguments into the kernel, set this option to 'Y', then fill in the boot arguments in CMDLINE.

Systems with fully functional boot loaders (i.e. non-embedded) should leave this option set to 'N'.

Default bootloader kernel arguments found in arch/blackfin/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/c6x/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/metag/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/microblaze/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/nios2/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/powerpc/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/ppc/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/ppc64/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/sh/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/sparc/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/sparc64/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Default bootloader kernel arguments found in arch/xtensa/Kconfig

The configuration item CONFIG_CMDLINE_BOOL:

Help text

(none)

Hardware

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