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How to Edit fstab Permissions on Linux Mint?

November 16, 2025 4 answers
Asked by CuriousCat42
I'm currently using a mini-PC running Linux Mint 22.2 while I'm repairing my main desktop. I've hooked up an old 6 TB hard drive in an enclosure, and I'm trying to set up Plex as a media server for my home network. When I follow the instructions, I hit a snag: I need to add a line to /etc/fstab, but this file is read-only. I've been searching for help but most resources seem to assume I have intermediate knowledge of changing permissions. I know how to make files executable, but that doesn't apply here. Can someone explain how to safely make /etc/fstab writable, and afterward return it to read-only? Also, how could I have found this information on my own? Thanks a lot!
fstab Linux Mint Media Server permissions Plex terminal commands Tutorial

Answers

TechSavvy123
To edit the /etc/fstab file, you need to use the terminal with superuser permissions. You can do this by typing `sudo nano /etc/fstab` or `sudo vi /etc/fstab` in the terminal. This allows you to edit the file as if you are logged in as the root user. Once you've made your changes in nano, press Ctrl + X to save and exit, then Y to confirm the changes. Remember that you need to use `sudo` for tasks like this because normal users don't have permission to modify system files.
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HelpfulBuddy
If you're looking for resources, there are plenty of guides and FAQs available online. Just search for 'Linux Mint fstab tutorial' or similar phrases. A good article or community post can often clarify things. Just remember to experiment in a safe environment like a Virtual Machine.
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BackupNinja
Always make a backup before editing system files. You can create one by executing `cp /etc/fstab ~/fstab.bak` in the terminal. This makes a copy of your fstab file to your home directory. After backing up, you can then use `sudo nano /etc/fstab` to edit it. Once you're done, run `sudo systemctl daemon-reload` and `sudo mount -a` to apply your changes!
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CommandLineHero
Sudo is your best friend here! It's like 'run as administrator' on Windows. Just open your terminal and for any command you want to run on /etc/fstab, prefix it with `sudo`. If you want a quick way to edit it, you can use command like `sudo nano /etc/fstab`. Alternatively, there are GUI editors, but Mint doesn’t usually come with them by default. Just be careful – editing system files can be risky!
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