가상 머신 재구축

가상 머신 재구축

2 min read

This guide summarizes the steps for rebuilding (reinstalling) a VPS from the client portal.

Overview #

  • “Rebuild” = Reinstalls the VPS using the selected OS template.
  • When executed, all data on the disk is deleted (cannot be restored).

Important: When you execute a rebuild, existing data on the server will be lost. If you have necessary data, be sure to back it up beforehand.

Pre-requisites (Important) #

Backup #

  • If you have necessary data, be sure to back it up before rebuilding.
  • If you do not have a backup option, contact support first.

Information Required for Rebuild #

  • The OS you want to reinstall (e.g.: Ubuntu / Debian / Rocky / Alma / OpenSense, etc.)
  • The login password to be configured after rebuild (root password)

Operating Steps #

1. Open the management screen for the target VPS #

  1. Log in to the client portal.
  2. From “Services” in the left menu, open the target VPS (e.g.: NVPS663) and display the “Server Details” screen.

2. Open “Rebuild” from “More” #

  1. Click “More” in the top right of the screen.
  2. From the displayed menu, click “Rebuild”.

3. Select an OS template #

  1. On the “Rebuild” page, open the “OS Template” dropdown.
  2. Select the OS template you want to reinstall.
Screen showing selection of OS to reinstall from the OS template dropdown

4. Set password (root) #

  1. Enter the password to be used after rebuild in the “Password” field.
  2. If necessary, toggle the visibility on/off using the eye icon on the right to confirm.
Screen for entering the root password to be used after rebuild

5. Execute “VPS Reinstall” and confirm by pressing “OK” #

  1. Click “VPS Reinstall”.
  2. When a confirmation dialog appears, confirm the content and click “OK”.

Caution: From this point onwards, disk initialization will take place. Be very careful not to execute this by mistake.

Confirmation dialog before executing VPS reinstall

6. Confirm the rebuild progress #

  1. When you return to “Server Details”, “REBUILD” will be displayed in the status.
  2. While “Server is executing a task” is displayed in the top right of the screen, the process is in progress.
  3. If necessary, press “Refresh” to reload the status.
Screen showing REBUILD status during rebuild

7. Confirm completion (login verification) #

  • When the rebuild is complete, the status display returns to normal, and information such as Uptime is displayed.
  • Verify that you can log in via SSH etc. to the displayed IP address (username: root, password: the one set in step 4).
  • After logging in, verify that the OS template is as expected by checking the OS version, etc.

Frequently Asked Questions / Troubleshooting #

Rebuild does not finish for a long time #

  • First, press “Refresh” to update the screen display.
  • If there is no change for a long time after that (e.g.: tens of minutes or more), contact support via a support ticket with the VPS name (e.g.: NVPS663) and the situation (REBUILD remaining, etc.).
  • “Cancel” may cause the process to be interrupted. Before executing, confirm the impact and consult with support if you are unsure.

Cannot log in after rebuild #

  • Double-check the password you entered for typos (uppercase/lowercase, symbols).
  • Verify that SSH (port 22) is permitted in security groups/firewall, etc.
  • Depending on the OS template, the initial login method may differ. If the template specifications are unclear, please contact support for confirmation.
Updated on 2026年6月9日

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