Power Outage Causes PSU Failure and Read-only Filesystem Error
A power outage can cause various issues, including PSU failure and filesystem corruption, leading to a read-only file system error. Here are steps to address the situation:
Check the Power Supply Unit (PSU) : Ensure the PSU is functioning correctly. If it is failing, consider replacing it. A failing PSU can deliver unstable power, leading to disk errors and system instability.
Run File System Checks : Use commands like fsck to check and repair filesystem issues. For instance, you can run sudo fsck /dev/sdx1 to check the filesystem on a specific partition.
Monitor Disk Health : Utilize tools like smartctl from the smartmontools package to monitor the health of your hard drives and predict failures before they happen. Run sudo smartctl -a /dev/sdx to gather detailed information about the disk's health.
Regular Backups : Implement regular backups to safeguard against data loss. Schedule filesystem checks using cron jobs to help identify and fix corruption before it becomes a major issue.
Graceful Shutdown Mechanism : Install a UPS (Uninterruptible Power Supply) that can automatically shut down the system during a power outage to prevent abrupt shutdowns and filesystem corruption.
If the read-only file system persists despite these measures, it might indicate deeper hardware issues or severe filesystem corruption that requires professional data recovery services.
For further assistance, consult the documentation or seek help from community forums specific to your operating system or hardware.