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ページを印刷するOperating System
Mac Instructions
Linux Instructions
Reinstall the Chrome Operating System
1
Start your Chromebook.
2
When the Chrome OS is missing or damaged screen appears, insert the USB flash drive or SD card you created into the USB port or
SD card slot on your Chrome device.
3
Wait for the Chromebook to boot up from the flash drive.
4
Follow the instructions that appear on the screen.
5
On successful installation of the Chrome operating system, you will be prompted to remove the USB flash drive or SD card.
6
Remove the USB flash drive or SD card when prompted, and your Chromebook will automatically restart.
You should now be able to start your Chromebook as normal. Because the data stored on your Chromebook has been cleared, you will need
to go through the initial setup again. Make sure you sign in with your primary Google Account, because this account will be set as the
owner account.
"Chrome OS verification is turned off" Message
By default, Chromebooks are set to the normal user mode. If you've set the user mode to developer mode instead, you'll see a screen with
the message "Chrome OS verification is turned off" when you start up. Use the developer mode if you want to test your own version of the
Chrome operating system.
Press Ctrl+D to enter developer mode. If you press the space bar instead, you'll see a screen asking to recover your device.
Instructions
2
Run the tool and follow the instructions that appear on your
screen.
3
After you recover your Chromebook, you must format your
USB flash drive or SD card using the Recovery Tool. If you do
not format your USB flash drive or SD card, you will not be
able to use all the storage space on your external device.
Additionally, your USB flash drive or SD card may not be
recognizable by Windows.
Create a recovery flash drive by using the Recovery Tool. The tool
may not be available in all languages.
1
Click this
link
to download the Recovery Tool.
2
Run the tool and follow the instructions that appear on your
screen.
After the process is complete, you might see an alert saying your
USB drive or SD card is unreadable. If this fails, try removing and
reinserting your USB drive or SD card. Your USB drive or SD card
should now be ready to use for recovery.
Create a recovery flash drive by using the Recovery Tool. The tool
may not be available in all languages.
1
1.Click this
link
to download the Recovery Tool.
2
Modify the script permissions to allow execution with the
following command: $ & sudo chmod 755 linux_recovery.sh.
3
Run the script with root privileges with the following
command:$ sudo bash linux_recovery.sh.
4
Follow the prompts from the tool to complete building the
operating system image.
Chromebook recovery
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