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

[mazarian]

Thank you! This saved me a lot of time and fixed the issue. I followed your steps and appreciated the ChatGPT workaround.

[james]

Hello @jdaviescoates

@jdaviescoates said in Vaultwarden fails to start after update – DB migration error (SSO):

Might another Cloudron package be released that has the fix?

A fresh Vaultwarden installation will not have this issue.
About including a fix within the package.
We will have to look into it.

[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.

[ekevu123]

I confirm this works!

[andreasdueren]

@james this won’t fix the issue of logging everyone out though I assume?

Edit: just saw the newest update.

[sangemaru]

@james I also confirm this worked.

[murgero]

Confirming this fix worked however the latest package version still doesn't fix this problem.

[jdaviescoates]

@james said in Vaultwarden fails to start after update – DB migration error (SSO):

From version Cloudron package version 1.22.2 => Vaultwarden Version 1.34.3 to Cloudron package version 1.23.0 => Vaultwarden Version 1.35.0

Despite my worries and concerns, I never actually hit this problem. Guess I was lucky. But I wonder why?

My Vaultwarden started fine after doing that update. And then I immediately updated to the next version without issue too.

[Grienauer]

@james Hi thx. But how to use the web terminal if it is not starting/responding? At least this is the Problem on my side currently. So I can not execute any commands there…

[andreasdueren]

@Grienauer You need to put it into recovery mode, execure the script, take it out of it again

[Grienauer]

Yes, this did the trick. Thank you.
Crazy superfast response from you btw. thx!