Hello, 
I'm trying to install the ChromeBook Recovery image, build# 12371.6.0/77.0.3865.7 -Cyan.  And, there is the following message on the Recovery.log file.  Please check message on the log file. :
sh: dmidecode: not found
dmidecode execution unsuccessful - continuing without DMI info
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Trying to unmap a nonexisting mapping!
Please report a bug at flashrom@flashrom.org
Reading flash... SUCCESS
Thanks,
Song