NTFS: Difference between revisions

34j (talk | contribs)
Remove unnecessary use of ntfs-3g and recommend generating the configuration using `nixos-generate-config`.
Pigs (talk | contribs)
Troubleshooting: adds section on dirty flag
 
(4 intermediate revisions by one other user not shown)
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Using [[nixos-generate-config]] to automatically generate Nix config is the recommended way to setup filesystems.
Using [[nixos-generate-config]] to automatically generate Nix config is the recommended way to setup filesystems.


1. Run {{ic|lsblk}} to list device names
1. Run {{ic|lsblk}} to list device names.
2. Mount the device using {{ic|mount}}, where {{ic|/dev/sdX}} replaced with your device name and {{ic|/mnt/sdX}} replaced with an existing folder path to mount your drive.
{{code|
{{code|<nowiki>mount /dev/sdX /mnt/sdX -t ntfs3</nowiki>}}
sd...
3. Run {{ic|nixos-generate-config --dir .}} to generate hardware configuration. This will automatically add all currently mounted devices to {{ic|hardware-configuration.nix}}.
└─sdX
}}
2. Mount the device using [https://man7.org/linux/man-pages/man8/mount.8.html {{ic|mount}}], where {{ic|/dev/sdX}} replaced with your device name and {{ic|/mnt/sdX}} replaced with an existing folder path to mount your drive.
{{code|<nowiki>mount /dev/sdX /mnt/sdX -t ntfs3 -o uid=$UID</nowiki>}}
3. Run {{ic|nixos-generate-config --dir .}} to generate hardware configuration. This will <strong>automatically</strong> add all currently mounted devices to {{ic|hardware-configuration.nix}}.
{{file|/etc/nixos/hardware-configuration.nix|diff|3=
{{file|/etc/nixos/hardware-configuration.nix|diff|3=
+  boot.supportedFilesystems = [ "ntfs" ];
+  boot.supportedFilesystems = [ "ntfs" ];
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+  };
+  };
}}
}}
4. Add {{ic|<nowiki>"uid=$UID"</nowiki>}} to {{nixos:option|fileSystems.*.options|fileSystems.<name>.options}} to get write access, where {{ic|<nowiki>$UID</nowiki>}} replaced with your UID:
4. Add {{ic|<nowiki>"uid=$UID"</nowiki>}} to {{nixos:option|fileSystems.*.options|fileSystems.<name>.options}} to get write access, where {{ic|<nowiki>$UID</nowiki>}} <strong>replaced with your UID</strong>:
{{file|/etc/nixos/configuration.nix|diff|3=
{{file|/etc/nixos/configuration.nix|nix|3=
fileSystems =
fileSystems =
   let
   let
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   lib.genAttrs ntfs-drives (path: {
   lib.genAttrs ntfs-drives (path: {
     options = [
     options = [
       "uid=$UID"
       "uid=$UID" # REPLACE "$UID" WITH YOUR ACTUAL UID!
       # "nofail"
       # "nofail"
     ];
     ];
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{{note|You may find your UID by running {{ic|echo $UID}}.}}
{{note|You may find your UID by running {{ic|echo $UID}}.}}
{{aside|It is not recommended to manually edit {{ic|hardware-configuration.nix}}.}}
{{aside|It is not recommended to manually edit {{ic|hardware-configuration.nix}}.}}
5. {{evaluate}}


== Troubleshooting ==
== Troubleshooting ==
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[https://social.technet.microsoft.com/wiki/contents/articles/25908.fast-startup-how-to-disable-if-it-s-causing-problems.aspx This TechNet entry] explains how to disable fast startup. Additionally, [https://www.howtogeek.com/243901/the-pros-and-cons-of-windows-10s-fast-startup-mode/ this blog post on howtogeek.com] explains how the fast startup mode works, and how to disable it.
[https://social.technet.microsoft.com/wiki/contents/articles/25908.fast-startup-how-to-disable-if-it-s-causing-problems.aspx This TechNet entry] explains how to disable fast startup. Additionally, [https://www.howtogeek.com/243901/the-pros-and-cons-of-windows-10s-fast-startup-mode/ this blog post on howtogeek.com] explains how the fast startup mode works, and how to disable it.
=== Unable to mount ntfs3 with dirty volume ===
When attempting to mount an <code>NTFS</code> partition using the <code>ntfs3</code> filesystem driver via the {{nixos:package|ntfs3g}} package, the mount operation may fail:
<syntaxhighlight lang="console">
# mount /dev/sda1 /mnt -t ntfs3
mount: /mnt: wrong fs type, bad option, bad superblock on /dev/sda1, missing codepage or helper program, or other error.
      dmesg(1) may have more information after failed mount system call.
</syntaxhighlight>
With the resulting dmesg output:
<syntaxhighlight lang="console">
# dmesg
...
[168659.819978] ntfs3: sda1: It is recommened to use chkdsk.
[168659.820833] ntfs3: sda1: volume is dirty and "force" flag is not set!
</syntaxhighlight>
This indicates that the NTFS volume has the “dirty” flag set. In this state, the <code>ntfs3</code> driver refuses to mount the filesystem.
To clear the dirty flag, run <code>ntfsfix</code> on the affected partition:
<syntaxhighlight lang="console">
# ntfsfix --clear-dirty /dev/sda1
</syntaxhighlight>
If <code>ntfsfix</code> fails with an error <code>Windows is hibernated, refused to mount</code>, the partition can be mounted using <code>ntfs-3g</code> with the hibernation file removed:
<syntaxhighlight lang="console">
# ntfs-3g -o remove_hiberfile /dev/sda1 /mnt
</syntaxhighlight>


[[Category:Filesystem]]
[[Category:Filesystem]]