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I've just installed Ubuntu latest one today (21.04). I don't have any other OS on my laptop, only Ubuntu. I want to edit a text file stored in Part4, which is in NTFS filesystem. But when I edited it I saw that I can't save that as it's showing that the file is in read only. Also I can't delete files from the partition as they return the same issue. What should I do?

Note that I am completely new in Ubuntu, in fact I had windows 10 installed on my laptop till last night when I decided to try something new.

Kingshuk Chakravorty
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    If your NTFS partition isn't clean (ie. used by a hibernated/fastboot-enabled system), the mount can only be RO so as to prevent data loss. You've not said how you mounted (I'll assume RW) as a fs (file-system) flipping to RO is a sign of a problem being detected & the RO prevents data-loss. Look at how mounted, or when it flipped to RO if it was mounted RW. – guiverc Aug 01 '21 at 07:14
  • Would you please tell me how to check that-- the mounting system?? – Kingshuk Chakravorty Aug 01 '21 at 07:17
  • I can't know how you mounted it, if you used the mount command it'll be by that command, if you used a GUI tool the message may only be found in logs (or an indicator on the screen/gui). The command dmesg will show most logs since boot; though if you know when you mounted it; you can search journalctl which for messages around the time/date of your mount. One benefit of commands, is the messages appear both in logs (if needed later) & appear on screen after your command; if you're using a GUI they are in logs only often (you didn't say if 21.04 desktop, or 21.04 server..) – guiverc Aug 01 '21 at 07:20
  • You may need to consider convert NTFS > EXT4 but backup everything important! – graham Aug 01 '21 at 07:21
  • @guiverc its desktop version I went to Disk and found that its showing for the partition: NTFS-- mounted at /media/usename/Part4 – Kingshuk Chakravorty Aug 01 '21 at 07:24
  • @24601 that'll be a huge problem, as I have 96 gb free out of 251 gb in that partition... – Kingshuk Chakravorty Aug 01 '21 at 07:26
  • Oh another thing, I tried chmod command and it just says that changing permission: read-only

    I used this: chmod a+rwx /media/username/Part4 -R

     – Kingshuk Chakravorty Aug 01 '21 at 07:46
  • Finally I got a solution!!! I used ntfsfix command it went so smoothly!! Yayy!! Thanks to both of you for helping me! :D – Kingshuk Chakravorty Aug 01 '21 at 07:56
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    You're now strongly advised - again- to use EXT4 instead of NTFS. There WILL come a time when you find errors that can't be corrected with Linux tools (NTFS is a Microsoft proprietary file system) and that will be a problem because you no longer have Windows. Please proceeed accordingly ASAP, for your own good. – ChanganAuto Aug 01 '21 at 10:35
  • @ChanganAuto ok I'll try to do so... Thanks :D – Kingshuk Chakravorty Aug 01 '21 at 15:42
  • I've successfully changed the filesystem to ext4 for all of my partitions. The shrink-&-go method was really helpful. Thanks people! :D – Kingshuk Chakravorty Aug 02 '21 at 06:27

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