DESCRIPTION

Usage:

  • crossystem [--all]

  • Prints all parameters with descriptions and current values. If --all is specified, prints even normally hidden fields.

  • crossystem [param1 [param2 [...]]]

  • Prints the current value(s) of the parameter(s).

  • crossystem [param1=value1] [param2=value2 [...]]]

  • Sets the parameter(s) to the specified value(s).

  • crossystem [param1?value1] [param2?value2 [...]]]

  • Checks if the parameter(s) all contain the specified value(s).

Stops at the first error. Valid parameters:

arch

Platform architecture

clear_tpm_owner_request

Clear TPM owner on next boot

clear_tpm_owner_done

Clear TPM owner done

cros_debug

OS should allow debug features

dbg_reset

Debug reset mode request (writable)

ddr_type

Type of DDR RAM

disable_dev_request

Disable virtual dev-mode on next boot

dev_boot_usb

Enable developer mode boot from USB/SD (writable)

dev_boot_legacy

Enable developer mode boot Legacy OSes (writable)

dev_boot_signed_only

Enable developer mode boot only from official kernels (writable)

devsw_boot

Developer switch position at boot

devsw_cur

Developer switch current position

ecfw_act

Active EC firmware

fmap_base

Main firmware flashmap physical address

fwb_tries

Try firmware B count (writable)

fwid

Active firmware ID

fwupdate_tries

Times to try OS firmware update (writable, inside kern_nv)

hwid

Hardware ID

kern_nv

Non-volatile field for kernel use

kernkey_vfy

Type of verification done on kernel key block

loc_idx

Localization index for firmware screens (writable)

mainfw_act

Active main firmware

mainfw_type

Active main firmware type

nvram_cleared

Have NV settings been lost? Write 0 to clear

oprom_needed

Should we load the VGA Option ROM at boot?

platform_family

Platform family type

recovery_reason

Recovery mode reason for current boot

recovery_request

Recovery mode request (writable)

recoverysw_boot

Recovery switch position at boot

recoverysw_cur

Recovery switch current position

recoverysw_ec_boot

Recovery switch position at EC boot

ro_fwid

Read-only firmware ID

savedmem_base

RAM debug data area physical address

savedmem_size

RAM debug data area size in bytes

sw_wpsw_boot

Firmware write protect software setting enabled at boot

tpm_fwver

Firmware version stored in TPM

tpm_kernver

Kernel version stored in TPM

tried_fwb

Tried firmware B before A this boot

vdat_flags

Flags from VbSharedData

vdat_lfdebug

LoadFirmware() debug data (not in print-all)

vdat_lkdebug

LoadKernel() debug data (not in print-all)

vdat_timers

Timer values from VbSharedData

wpsw_boot

Firmware write protect hardware switch position at boot

wpsw_cur

Firmware write protect hardware switch current position

RELATED TO crossystem…

The full documentation for crossystem is maintained as a Texinfo manual. If the info and crossystem programs are properly installed at your site, the command

  • info crossystem

should give you access to the complete manual.