Two additional comments about script /usr/libexec/migrate_redis_to_valkey.bash 1) It searches service files only in /etc/systemd/system. Shouldn't /usr/lib/systemd/system be included as well? On my system the redis service files cannot be found under /etc/systemd/system. The are located under /usr/lib/systemd/system: -rw-r--r-- 1 root root 680 May 19 15:57 /usr/lib/systemd/system/redis@.service -rw-r--r-- 1 root root 744 May 19 15:57 /usr/lib/systemd/system/redis-sentinel@.service 2) The script contains the line: chown -R valkey. /var/lib/valkey The dot should have been a colon, considering this warning: chown: warning: '.' should be ':': 'valkey.'