Developer and Recovery mode
Table 5. Developer and Recovery mode
Developer Mode
Recovery Mode
•
Used to boot without verification.
•
Can be turned on via key combination during boot.
•
Stateful partition is wiped during transitions.
•
Used in the factory to boot test image.
•
Allows a user to reinstall the Chrome OS from a USB key or SD
card.
•
Recovery mode is entered if verified boot fails.
•
A user can force recovery mode via a key combination during
boot.
Coreboot and U-boot Custom Firmware
Coreboot (x86 only)
•
Memory and chipset initialization
•
Open-source, except for MRC binary from Intel.
U-Boot
•
Performs verified boot
•
Handles recovery and Developer Mode
•
Open source code
Normal boot is very fast, as it takes less than 1 second to start loading kernel. Chromebook does not boot other operating systems such as
Windows or OS X.
Software
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Summary of Contents for Chromebook 5190
Page 1: ...Chromebook 5190 Owners Manual Regulatory Model P28T Regulatory Type P28T001 ...
Page 11: ...c Lift the base cover away from the system Removing and installing components 11 ...
Page 16: ...d Lift the speaker away from the system 16 Removing and installing components ...
Page 30: ...f Turn the system 30 Removing and installing components ...
Page 36: ...d Lift the display panel away from the display assembly 36 Removing and installing components ...
Page 78: ...2 Click Settings as highlighted from the screenshot below 78 Diagnostic and troubleshooting ...
Page 79: ...3 Click Show advanced settings to expand the menu Diagnostic and troubleshooting 79 ...
Page 80: ...4 Click the Powerwash button 80 Diagnostic and troubleshooting ...