Note - stripe unit (0) and width (0) were copied from a backup superblock.
She tried a graceful unmount. umount /var/archive hung forever. A soft reboot did nothing but land her in an emergency shell. The filesystem was in a critical state. CentOS 7’s default filesystem, XFS, was known for its robustness, but when it broke, it broke with a vengeance.
She typed the command that always made her heart rate spike: xfs-repair centos 7
Her hands were shaking. She mounted the filesystem.
Phase 4 completed. Phase 5. Finally, the line she needed: Note - stripe unit (0) and width (0)
mount /dev/sdb1 /var/archive No error.
Her stomach dropped. Without -n , the repair would have just crashed, potentially leaving the filesystem in an unmountable, shredded state. She needed the nuclear option. A soft reboot did nothing but land her in an emergency shell
xfs_repair: /dev/sdb1 completed successfully.