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Cloudron Forum

Apps | Demo | Docs | Install
  1. Cloudron Forum
  2. Vaultwarden
  3. Vaultwarden fails to start after update – DB migration error (SSO)

Vaultwarden fails to start after update – DB migration error (SSO)

Scheduled Pinned Locked Moved Solved Vaultwarden
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  • O Offline
    O Offline
    overholt
    wrote last edited by
    #42

    Vaultwarden not responding. Backup restore from December 29th, 2025 works. No backups after that are working. There is nothing in the Cloudron logs that show any error. There was only an update on Dec 31st that appears to be the start of the problem.

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    0
    • jdaviescoatesJ Offline
      jdaviescoatesJ Offline
      jdaviescoates
      wrote last edited by jdaviescoates
      #43

      @overholt Very likely you've hit the same thing as this thread. Solution here https://forum.cloudron.io/post/117779

      I use Cloudron with Gandi & Hetzner

      1 Reply Last reply
      1
      • marcusquinnM Offline
        marcusquinnM Offline
        marcusquinn
        wrote last edited by marcusquinn
        #44

        I used this issue to improve my aidevops cloudron subagent, and it managed to fix the issue on all instances. More info here for anyone interested to add this to your toolkit:

        • https://forum.cloudron.io/topic/14688/ai-devops

        Web Design & Development: https://www.evergreen.je
        Technology & Apps: https://www.marcusquinn.com

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        • O Offline
          O Offline
          overholt
          wrote last edited by overholt
          #45

          Script fix works. Thank you!

          1 Reply Last reply
          3
          • ChristopherMagC ChristopherMag

            I have run the command sed -i 's/\r$//g' /app/data/fix_db.sh to fix the new line characters and then run bash /app/data/fix_db.sh again and it ran as expected. Disabled recover mode and confirmed things are back to working as expected.

            R Offline
            R Offline
            ryansebo
            wrote last edited by
            #46

            @ChristopherMag Thanks, this fixed my issue.

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            2
            • ChristopherMagC ChristopherMag

              I have run the command sed -i 's/\r$//g' /app/data/fix_db.sh to fix the new line characters and then run bash /app/data/fix_db.sh again and it ran as expected. Disabled recover mode and confirmed things are back to working as expected.

              C Offline
              C Offline
              composer
              wrote last edited by
              #47

              @ChristopherMag
              That worked for me, Thanks.

              1 Reply Last reply
              0
              • jamesJ james

                Hello @vaultwarden users

                Since users have voiced their concerns about manually editing the database I have created a bash script that does it for you.
                Please follow these steps if you have this issue:

                1. create an app backup of your @vaultwarden Cloudron app
                2. put the erroring @vaultwarden app in recovery mode
                3. open the File Manager of your @vaultwarden app and create a fix_db.sh file
                4. copy and paste the following script into the just created fix_db.sh file:
                  #!/bin/bash
                  
                  echo "=> Checking if DEFAULT_CHARACTER_SET_NAME and DEFAULT_COLLATION_NAME are set to utf8mb4 and utf8mb4_unicode_ci"
                  
                  CURRENT_DEFAULT_CHARACTER_SET_NAME=$(mysql --silent --skip-column-names --user=${CLOUDRON_MYSQL_USERNAME} --password=${CLOUDRON_MYSQL_PASSWORD} --host=${CLOUDRON_MYSQL_HOST} ${CLOUDRON_MYSQL_DATABASE} -e "SELECT DEFAULT_CHARACTER_SET_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = '${CLOUDRON_MYSQL_DATABASE}';" 2>/dev/null)
                  CURRENT_DEFAULT_COLLATION_NAME=$(mysql --silent --skip-column-names --user=${CLOUDRON_MYSQL_USERNAME} --password=${CLOUDRON_MYSQL_PASSWORD} --host=${CLOUDRON_MYSQL_HOST} ${CLOUDRON_MYSQL_DATABASE} -e "SELECT DEFAULT_COLLATION_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = '${CLOUDRON_MYSQL_DATABASE}';" 2>/dev/null)
                  FIX_NEEDED=0
                  
                  if [ "${CURRENT_DEFAULT_CHARACTER_SET_NAME}" != "utf8mb4" ] || [ "${CURRENT_DEFAULT_COLLATION_NAME}" != "utf8mb4_unicode_ci" ]; then
                      echo "=> DEFAULT_CHARACTER_SET_NAME or DEFAULT_COLLATION_NAME is not set to utf8mb4 or utf8mb4_unicode_ci."
                      echo "==> Current values are: DEFAULT_CHARACTER_SET_NAME=${CURRENT_DEFAULT_CHARACTER_SET_NAME}, DEFAULT_COLLATION_NAME=${CURRENT_DEFAULT_COLLATION_NAME}"
                      FIX_NEEDED=1
                  else
                      echo "=> DEFAULT_CHARACTER_SET_NAME is ${CURRENT_DEFAULT_CHARACTER_SET_NAME} and DEFAULT_COLLATION_NAME is ${CURRENT_DEFAULT_COLLATION_NAME}"
                      echo "=> Nothing to do - quitting."
                      FIX_NEEDED=0
                      exit 0
                  fi
                  
                  if [ ${FIX_NEEDED} -eq 1 ]; then
                      read -p "Have you created a backup of your Cloudron Vaultwarden app? (y/N): " yn
                      case $yn in
                          [Yy]* )
                              echo "=> Setting database character set and collation to utf8mb4 and utf8mb4_unicode_ci."
                              mysql --user=${CLOUDRON_MYSQL_USERNAME} --password=${CLOUDRON_MYSQL_PASSWORD} --host=${CLOUDRON_MYSQL_HOST} ${CLOUDRON_MYSQL_DATABASE} -e "ALTER DATABASE \`${CLOUDRON_MYSQL_DATABASE}\` CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;" 2>/dev/null
                              echo "=> Converting all tables to character set utf8mb4 and collation utf8mb4_unicode_ci."
                              mysql --silent --skip-column-names \
                    --user="${CLOUDRON_MYSQL_USERNAME}" \
                    --password="${CLOUDRON_MYSQL_PASSWORD}" \
                    --host="${CLOUDRON_MYSQL_HOST}" \
                    "${CLOUDRON_MYSQL_DATABASE}" \
                    -e "SELECT CONCAT('ALTER TABLE \`', TABLE_NAME,'\` CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;') AS CharSetConvert FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA='${CLOUDRON_MYSQL_DATABASE}' AND TABLE_TYPE=\"BASE TABLE\";" 2>/dev/null | while read -r sql_command; do
                                  echo "==> Executing: ${sql_command}"
                                  mysql --user=${CLOUDRON_MYSQL_USERNAME} --password=${CLOUDRON_MYSQL_PASSWORD} --host=${CLOUDRON_MYSQL_HOST} ${CLOUDRON_MYSQL_DATABASE} -e "SET foreign_key_checks=0; ${sql_command} SET foreign_key_checks=1;" 2>/dev/null
                              done
                              ;;
                          [Nn]* )
                              echo "=> Please create a backup of your database before proceeding with the fix. Exiting."
                              exit 1
                              ;;
                          * )
                              echo "=> Invalid response. Please answer with y or n. Exiting."
                              exit 1
                              ;;
                      esac
                  fi
                  
                5. open the Web Terminal of your @vaultwarden Cloudron app
                6. execute the following command:
                  bash /app/data/fix_db.sh
                  
                7. Execute the following command to start @vaultwarden:
                  /app/pkg/start.sh
                  
                8. Validate if your @vaultwarden is now working correctly
                9. If validated working, you can delete the fix_db.sh file and disable the recovery mode of your @vaultwarden Cloudron app

                If you run into any issues, copy the output of the terminal, post it here and restore your app from the backup created.

                C Offline
                C Offline
                composer
                wrote last edited by
                #48

                @james That helped. Thanks.

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                0
                • ChristopherMagC ChristopherMag

                  I have run the command sed -i 's/\r$//g' /app/data/fix_db.sh to fix the new line characters and then run bash /app/data/fix_db.sh again and it ran as expected. Disabled recover mode and confirmed things are back to working as expected.

                  P Offline
                  P Offline
                  Purple8
                  wrote last edited by
                  #49

                  @ChristopherMag Thank you ! It worked for me

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                  0
                  • jamesJ james

                    Hello @factord
                    This looks like a copy-paste issue from Windows.
                    \r in line 2 is a blank line, so a line break.
                    When you copy and pasted, it pasted the line breaks windows style.

                    Please describe how you have copy and pasted the code into the /app/data/fix_db.sh file.

                    F Offline
                    F Offline
                    factord
                    wrote last edited by
                    #50

                    @james hi James, same than @christophermag , copy/paste in Windows 11, applying his sed fix did the trick for me too.

                    PS: i didn't receive any email notification of the mentions.

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                    1
                    • jamesJ Online
                      jamesJ Online
                      james
                      Staff
                      wrote last edited by
                      #51

                      Hello @factord
                      This is due to your forum profile settings.
                      If you visit https://forum.cloudron.io/user/factord/settings you can see under Notifications the option When someone mentions you is set to None.
                      If you wish to get notifications on mention, you will have to enable this.
                      Although, you should have got a notification that there were new posts in this topic unless you have changed the topic notification status to Not Watching or Ignoring since in your forum profile settings the following is set:
                      c03d6b0d-34c2-4f6b-8c08-8a0aad2ee534-image.png

                      Did you change the notification setting in this topic (top right bell icon)?
                      ed77f1e8-9fd3-44b8-9149-79a22d8e5753-image.png

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