Articles by tag: recovery

iOS 26.4.1: iPhone crashes and inability to downgrade

iPhone users report crashes after installing iOS 26.4.1. Devices go into Recovery Mode, downgrade to iOS 26.4 is impossible. Find out what to do.

PostgreSQL Recovery without 2.5 TB Backup

Real case of PostgreSQL cluster destruction from WAL deletion and SIGKILL. Recovery steps with ignore_system_indexes, crash_info and pg_dump patches. Lessons for 1C DBA.