Recovering a Linux Server Stuck in Rescue Mode and Re-mounting a Data Disk without Formatting
This article describes a step‑by‑step process for diagnosing a Linux server that entered rescue mode after an illegal reboot, using journalctl and systemctl commands, checking disk status, repairing an XFS filesystem with xfs_repair, and safely unmounting, re‑formatting, and re‑mounting the data partition without losing existing data.