# [How-To] Create Recovery Disk
###### Last edited: 26 October, 2022
### **What you need:**
- A USB flash drive or SD card with 10GB or larger storage. Please ensure it does not contain any personal, confidential or important files, as they will be wiped out later on.
- A valid Google account. The following types of accounts are considered acceptable:
- Google-CIeNET partner account (typically ends with `@cienet.corp-partner.google.com`)
- Google External Workforce account (typically ends with `@externalworkforce.google.com`)
- Google TVC account (typically ends with `@google.com`)
- [Google Chrome](https://www.google.com/chrome/) browser with the latest released version.
- Have [Chromebook Recovery Utility](https://chrome.google.com/webstore/detail/chromebook-recovery-utili/pocpnlppkickgojjlmhdmidojbmbodfm) extension installed on your Google Chrome browser.
- You can create recovery image on your personal Macintosh, Windows device or Chromebook machines.
### Steps:
1. Visit [Google Chrome OS Platform](https://www.google.com/chromeos/partner/fe/#release) website with and only with your valid Google account.
2. Click `Image Files` and accept the terms and conditions. (For first-time login only)
3. On the download page, search your reimage archive file with the following configurations:
- **Board**: visit [chrome://version](chrome://version) on your DUT to find out DUT board name.
- **Image Type**: `TEST_IMAGE_ARCHIVE`
- **Chanel**: mostly `canary`, sometimes `dev`
- **Release/Milestone** (Optional): Typically start with the alphabet `R`. For example: `R104`
- **Version/prefix** (Optional): Typically is five digits of numbers. For example: `14794`.
- If the website didn't refresh after clicking the search button, refresh the website manually.
4. Click the file to download it to your device.
5. Unzip the downloaded file. If you are doing it on your DUT, you might need to run the Linux command `tar -xvf [filename].tar.gz` to do so. Further details are:
- Activate the Linux environment on your DUT by visiting the Settings app.
- Share the Downloads folder with Linux.
- Visit folder path `/mnt/chromeos/MyFiles/Downloads`
- Running command `tar -xvf [filename].tar.gz`
6. Click "Chromebook Recovery Utility" extension on your Google Chrome browser. A new window will appear.
7. Follow the instruction:
- Click `Get Started`
- On the top-right corner, click the gear icon and select the option "Use local image," and select unzipped .bin file.
- Insert your USB drive or SD card.
- Select the USB or SD card you just inserted from the drop down menu.
- Recovery image will be created for you. You might be asked for authentication.
8. Once it's done, you are safe to unplug the recovery image.
9. Do what you usually do by following [this file](https://docs.google.com/spreadsheets/d/1rQheDb3eeKgFwKwugDcmvtvoy6QQ_DQ-i3yqNOdF9n0/edit#gid=1102175039) for reimage.
### Known Issues
- None
###### * Please contact [author](mailto:lance.wang@cienet.com) if any incorrect, outdated instruction observed and(or) suggestions for improvement.