Why does my root filesystem keep becoming read-only?
Solution 1:
In my experience if he system automatically decides to remount a medium read-only that either means that
- the medium is broken
- or the file-system on the medium is broken.
In the latter case a fsck run could help. But if a bad block has broken the file system chances are high that it won't be long before another bad block appears - possibly breaking something more vital.