Install vboot-utils by entering the following commands in the terminal:
sudo apt update sudo apt install vboot-utils
Description:
Chrome OS verified u-boot utilities
This package contains a set of tools to deal with Chromebook internals, and the verified version of u-boot. Namely: bmpblk_font bmpblk_utility chromeos-tpm-recovery crossystem dev_debug_vboot dev_make_keypair dumpRSAPublicKey eficompress efidecompress enable_dev_usb_boot load_kernel_test pad_digest_utility signature_digest_utility tpm-nvsize tpm_init_temp_fix tpmc vbutil_what_key verify_data. . The programs previously included in this package: dump_fmap dump_kernel_config futility gbb_utility vbutil_firmware vbutil_key vbutil_keyblock, are now grouped in the futility program in the package vboot-kernel-utils. . Most users don't need this package, and should look for the cgpt and vboot-kernel-utils packages instead.
Homepage: https://chromium.googlesource.com/chromiumos/platform/vboot_reference
Version: 0~R63-10032.B-3
Section: universe/admin