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