.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.47.4.
.TH CROSSYSTEM "1" "July 2016" "crossystem " "User Commands"
.SH NAME
crossystem \- Chrome OS firmware/system interface utility
.SH DESCRIPTION
.SS "Usage:"
.IP
crossystem [\-\-all]
.IP
Prints all parameters with descriptions and current values.
If \fB\-\-all\fR is specified, prints even normally hidden fields.
.IP
crossystem [param1 [param2 [...]]]
.IP
Prints the current value(s) of the parameter(s).
.IP
crossystem [param1=value1] [param2=value2 [...]]]
.IP
Sets the parameter(s) to the specified value(s).
.IP
crossystem [param1?value1] [param2?value2 [...]]]
.IP
Checks if the parameter(s) all contain the specified value(s).
.PP
Stops at the first error.
Valid parameters:
.TP
arch
Platform architecture
.TP
backup_nvram_request
Backup the nvram somewhere at the next boot. Cleared on success.
.TP
battery_cutoff_request
Cut off battery and shutdown on next boot.
.TP
block_devmode
Block all use of developer mode
.TP
clear_tpm_owner_request
Clear TPM owner on next boot
.TP
clear_tpm_owner_done
Clear TPM owner done
.TP
cros_debug
OS should allow debug features
.TP
dbg_reset
Debug reset mode request (writable)
.TP
debug_build
OS image built for debug features
.TP
dev_boot_usb
Enable developer mode boot from USB/SD (writable)
.TP
dev_boot_legacy
Enable developer mode boot Legacy OSes (writable)
.TP
dev_boot_signed_only
Enable developer mode boot only from official kernels (writable)
.TP
dev_default_boot
default boot from legacy or usb (writable)
.TP
devsw_boot
Developer switch position at boot
.TP
devsw_cur
Developer switch current position
.TP
disable_dev_request
Disable virtual dev\-mode on next boot
.TP
ecfw_act
Active EC firmware
.TP
fmap_base
Main firmware flashmap physical address
.TP
fwb_tries
Try firmware B count (writable)
.TP
fw_vboot2
1 if firmware was selected by vboot2 or 0 otherwise
.TP
fwid
Active firmware ID
.TP
fwupdate_tries
Times to try OS firmware update (writable, inside kern_nv)
.TP
fw_tried
Firmware tried this boot (vboot2)
.TP
fw_try_count
Number of times to try fw_try_next (writable)
.TP
fw_try_next
Firmware to try next (vboot2,writable)
.TP
fw_result
Firmware result this boot (vboot2,writable)
.TP
fw_prev_tried
Firmware tried on previous boot (vboot2)
.TP
fw_prev_result
Firmware result of previous boot (vboot2)
.TP
hwid
Hardware ID
.TP
kern_nv
Non\-volatile field for kernel use
.TP
kernkey_vfy
Type of verification done on kernel key block
.TP
loc_idx
Localization index for firmware screens (writable)
.TP
mainfw_act
Active main firmware
.TP
mainfw_type
Active main firmware type
.TP
nvram_cleared
Have NV settings been lost?  Write 0 to clear
.TP
oprom_needed
Should we load the VGA Option ROM at boot?
.TP
recovery_reason
Recovery mode reason for current boot
.TP
recovery_request
Recovery mode request (writable)
.TP
recovery_subcode
Recovery reason subcode (writable)
.TP
recoverysw_boot
Recovery switch position at boot
.TP
recoverysw_cur
Recovery switch current position
.TP
recoverysw_ec_boot
Recovery switch position at EC boot
.TP
ro_fwid
Read\-only firmware ID
.TP
sw_wpsw_boot
Firmware write protect software setting enabled at boot (Baytrail only)
.TP
tpm_attack
TPM was interrupted since this flag was cleared
.TP
tpm_fwver
Firmware version stored in TPM
.TP
tpm_kernver
Kernel version stored in TPM
.TP
tpm_rebooted
TPM requesting repeated reboot (vboot2)
.TP
try_ro_sync
try read only software sync
.TP
tried_fwb
Tried firmware B before A this boot
.TP
vdat_flags
Flags from VbSharedData
.TP
vdat_lfdebug
LoadFirmware() debug data (not in print\-all)
.TP
vdat_lkdebug
LoadKernel() debug data (not in print\-all)
.TP
vdat_timers
Timer values from VbSharedData
.TP
wipeout_request
Firmware requested factory reset (wipeout)
.TP
wpsw_boot
Firmware write protect hardware switch position at boot
.TP
wpsw_cur
Firmware write protect hardware switch current position
.SH "SEE ALSO"
The full documentation for
.B crossystem
is maintained as a Texinfo manual.  If the
.B info
and
.B crossystem
programs are properly installed at your site, the command
.IP
.B info crossystem
.PP
should give you access to the complete manual.