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I am sort of new on linux environment. So I had dual booted my laptop.

Now I can copy paste files on windows partitioned drives and the drives I had partitioned while installing the kubuntu. I did kept some free space, and partitioned that while in the OS. This new one was done in Kubuntu Partition Manager. And I am not getting any permission to create file/ folder, or even copy paste. . .

Added Note, Already saw the post Read-only partition, dual boot WIn10, and it did not help. Would appreciate your help. Terminal is giving me Refusing to operate on read-write mounted device /dev/sdb9.

I came to know about this problem, when i was trying set a Steam Library in Kubuntu. enter image description here

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    You haven't provided much specifics, however a RO/read-only file system means it was either mounted RO (not RW) OR logical errors were detected on the drive and it was flipped from RW to RO to stop errors getting worse and data loss. You'll note that in messages on screen (if using terminal or in logs if using gui). After fsck or file-system check & correction it'll stop flipping to RO. You provided no detail that allows us to know what your actual issue is (could be permissions, or other causes too...)
    – guiverc
    Mar 11, 2020 at 23:08
  • "It did not help" does not give us much to work with. Complete output and error messages offer more and better clues to what might be going on.
    – user535733
    Mar 11, 2020 at 23:12
  • the terminal is giving me "Refusing to operate on read-write mounted device /dev/sdb9."
    – Battleseeker_Rex
    Mar 11, 2020 at 23:14
  • @guiverc, I just had run 'fsck -n -f' . and this whole bunch of stuff came.
    – Battleseeker_Rex
    Mar 11, 2020 at 23:22
  • You shouldn't fsck a mounted drive. The easiest way to fsck it to boot a 'live' system (such as Ubuntu install media using the "Try Ubuntu") so your hdd/ssd isn't in use, and fsck from there. Please don't provide detail via command, edit your question and place detail there, but do not fsck a mounted fs, umount first (when it's not in use)
    – guiverc
    Mar 11, 2020 at 23:29

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