Fix MySQL InnoDB Startup

My MySQL service on a Linux server refuses to come up. The logs point to “InnoDB not starting,” and so far I’ve only reviewed those logs to confirm the failure. I need someone who knows MySQL internals well enough to pinpoint the root cause—whether it’s corrupt tablespace files, mis-set permissions, or a mis-tuned config—and bring the database back online without data loss.

Deliverables:
• Diagnose why the InnoDB engine fails to start
• Apply the necessary fixes and start the MySQL service cleanly
• Provide a concise summary of what went wrong and the steps taken so I can prevent a recurrence

You’ll have SSH access (I can enable sudo if required) and full log visibility. Once the service is stable and data is intact, the job is done.