.\" 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.