Read-only Root Filesystem - Linux
 

HI Friends,

Automatically root filesystems became read only, after reboot it working fine what is the problem how to solve this permently.

do you use ssd disk? my ssd became read-only and next reboot it stopped working.

Check your /var/log/messages.
Had same issue having problem with disk, then EXT journal daemon failed and remount FS as read only.

A good way to know if the disk is dying is with SmartMonTools.

If that comes up good, try "-t long", it will take probably half a day, but a much more accurate diagnose.

If you find anything bad this way, think about replacing the disk before it's too late.

I would backup data first..

Try a live CD and see if you are able to write on the root partition.
Hope this helps.

The kernel changes file systems to read-only when it detects an error on them so yooy's posts advising to back up data is good advice.