What to do when ext2/ext3/ext4 filesystem is remounted in read-only?

Solution Verified - Updated 2024-08-07T05:18:08+00:00 -

Issue

What to do when an ext3 filesystem remounted in read-only mode?
root file system went into read-only mode, what is the possible cause and how I can recover the filesystem and mount as read write?
What information I can capture to provide it to Red Hat Support for findings the cause behind filesystem going read-only?
Why my filesystem went to read-only mode, how can I recover it and mount filesystem read-write?
What are the possible scenarios where a filesystem can be set to 'read only mode'?

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