3DS:Rebuild Title Database: Difference between revisions

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This guide ~~will guide you in~~ rebuilding the `title.db` file in your SD card.

This page is a guide to rebuilding the <code>title.db</code> file in your SD card.

`title.db` is ~~a file~~ on ~~both~~ the 3DS SD card and ~~CTR~~-~~NAND~~ which contain ~~the entries~~ of all installed 3DS titles in its respective ~~place~~ (eg. ~~The~~ SD card `title.db~~` would contain~~ entries ~~of all 3DS~~ titles installed to ~~the~~ SD card). For more information check out [~~https~~:~~//www.3dbrew.org/wiki/Title_Database~~ 3dbrew].

<code>title.db</code> is the name for two files - one on the 3DS' SD card, and one on its CTRNAND - which contain a list of all installed 3DS titles for its respective part of the filesystem (e.g. your SD card's <code>title.db</code> only has entries for titles installed to your SD card). For more information, check out [[3dbrew:Title Database|3dbrew]].

=== What you need ===

===What you need===

* The latest release of ~~[https://github.com/~~wwylele/save3ds/releases save3ds] for your operating system

*The latest release of {{GitHub|wwylele/save3ds/releases/latest|save3ds}} for your operating system

* ~~The latest release~~ of [https://www.python.org/downloads/ Python 3]

*A version of [https://www.python.org/downloads/ Python 3.8 or later]

* a 3DS console with ~~boot9strap~~

*A 3DS console with custom firmware

* ~~[https://github.com/~~ihaveamac/3DS-rom-tools/raw/master/seeddb/seeddb.bin seeddb.bin]

*{{GitHub|ihaveamac/3DS-rom-tools/raw/master/seeddb/seeddb.bin|seeddb.bin}} (direct download link)

*boot9.bin (same for all consoles) and movable.sed (specific to yours only) - dump with [[3DS:Dump system files]]

=== Section I - Preparing the files ===

===Section I - Preparing the files===

~~# Launch GodMode9 by holding START on boot~~

#Turn the 3DS off

~~# Navigate into <code>[M:] MEMORY VIRTUAL</code>~~

#Insert your SD card into your computer

~~# Press A on <code>boot9.bin</code> then select "Copy to 0:/gm9/out"~~

#Go to the {{GitHub|ihaveamac/rebuild-title-database|Rebuild Title Database}} repo's page

#* If you don't have this file in GodMode9, you're likely not using boot9strap. In this case, you should [[3DS:Luma3DS to boot9strap|go back to boot9strap]] or consult the documentation of your bootloader to dump it instead

#Click the <big><span style="background:#008000">Code</span></big> button, then click '''Download ZIP'''

~~# Press A to continue~~

#Extract the contents of the downloaded <code>.zip</code> into a folder

~~# Press B once to return to the main menu~~

#*This folder will be referred to as the "rebuild folder" from now on

~~# Navigate into <code>[1:] SYSNAND CTRNAND</code> -> <code>private</code>~~

#Copy <code>movable.sed</code> and <code>boot9.bin</code> to the rebuild folder

~~# Press A on <code>movable.sed</code>, then select "Copy to 0:/gm9/out"~~

#*If you had just dumped them from your console, both are most likely in <code>sd:/gm9/out</code>

# Turn the 3DS off

#Copy <code>seeddb.bin</code> into the rebuild folder

# Insert ~~the~~ SD card into your computer

#Copy the <code>save3ds_fuse</code> binary from the save3ds <code>.zip</code> file into the rebuild folder

# Go to ~~https://github.com/~~ihaveamac/rebuild-title-database

# Click the ~~green~~ <big>Code</big> button, then click "Download ZIP~~" to download it~~

# Extract the contents of the <code>.zip</code> into a folder

#* ~~Lets call this~~ folder "rebuild folder"

~~# Go to <code>gm9</code> -> <code>out</code>~~ on ~~your SD card~~

# Copy <code>movable.sed</code> and <code>boot9.bin</code> to the rebuild folder

# ~~Create a folder called~~ <code>~~3ds~~</code> ~~in the user directory (C:/Users/[your username]/)~~

# Copy <code>seeddb.bin</code> to the ~~<code>3ds</code>~~ folder ~~in that directory~~

# Copy <code>save3ds_fuse~~.exe~~</code> from the save3ds <code>.zip</code> to the rebuild folder

=== Section II - ~~Section II~~ ===

===Section II - Rebuilding the database===

{{info|If you are not on Windows, replace <code>py -3</code> with <code>python3</code> in all commands.}}

~~# Navigate to the rebuild folder~~ in ~~file explorer~~

{{warning|The commands in this section are case-sensitive. Enter them exactly as written, or there may be unintended consequences.}}

~~# Click the Address bar, then replace the address with <code>cmd</code> and press ENTER~~

~~#* This should open a command prompt window~~

~~# In the command prompt, enter the following command: <code>py -3 -mpip install -~~-~~user -r requirements~~.~~txt</code>~~

~~# Then enter the command: <code>py -3 rebuild-title-database.py -b boot9.bin -m movable.sed -s X: -o out</code>~~

~~#* replace X: with the drive letter of your SD card~~, ~~which should~~ be ~~inserted into your Computer~~

~~# Next <code>save3ds_fuse --db sdtitle out --import --boot9 boot9.bin --movable movable~~.~~sed --sd X:</code>~~

~~#* replace X: with the drive letter of your SD card, which should be inserted into your Computer~~

~~# If you didn't get any errors, your apps should reappear, if not and they appear greyed out in System Settings -> Data Management -> Nintendo 3DS -> Software, run [[3DS:Faketik|faketik]]~~

~~=== Troubleshooting ===~~

#Navigate to the rebuild folder in file explorer

#Hold SHIFT and right-click anywhere in the folder's empty space, then click the option that opens a terminal, PowerShell, or Command Prompt

#In this new window, enter the following commands one at a time:

##<code>py -3 -V</code>

##*If this does not print the Python version, it is either not installed correctly, or the wrong command was used. Please read the note above.

##<code>py -3 -mpip install --user -r requirements.txt</code>

##<code>py -3 fix-titledb.py -b boot9.bin -m movable.sed -s X:</code>

##*If you are on Windows, replace <code>X:</code> with your SD card's drive letter. If you are not on Windows, replace <code>X:</code> with your SD card's mount point.

##<code>py -3 rebuild-title-database.py -b boot9.bin -m movable.sed -S seeddb.bin -s X: -o out</code>

##<code>./save3ds_fuse.exe --db sdtitle out --import --boot9 boot9.bin --movable movable.sed --sd X:</code>

##*If you are not on Windows, remove <code>.exe</code> from this command

#If you didn't get any errors, your apps should reappear on the HOME Menu immediately

#*If they only appear in '''System Settings''' -> '''Data Management''', follow '''one''' of these sets of steps based on how they appear.

#**Appear normally: Check the contents of <code>sd:/Nintendo 3DS/<id0>/<id1>/title/00040000</code>; there should only be more folders inside that folder.

#***If there is a file inside this folder, your apps are at least partially corrupted - backup your SD card to your PC, [[Formatting an SD card|reformat it]], and then try to move the backed-up files back to the SD. If this fails or the apps do not reappear afterward, [[Checking SD card integrity|check your SD card for hardware damage]].

#**Appear with a grey block count indicator and an X through their icons: Run [[3DS:Faketik|faketik]].

#**Appear with white/corrupted icons, 0 block count, and/or corrupted name: Whatever destroyed your <code>title.db</code> has also permanently corrupted your apps. Backup your SD card to your PC,[[Formatting an SD Card|reformat it]], and then [[Checking SD card integrity|check it for hardware damage]].

#*If they do not appear anywhere in the system, you may want to [[Checking SD card integrity|check your SD card for hardware damage]], as the apps are likely gone.

* ~~Make sure you have~~ boot9.bin ~~and movable.sed in the rebuild folder~~

===Troubleshooting===

* ~~Make sure~~ the ~~SD card is inserted and you can view and edit its contents~~

* ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'requirements.txt'

*<code>boot9.bin</code> is missing from <code>[M:] MEMORY VIRTUAL</code>

** Make sure you are in the rebuild folder and that you extracted the contents of rebuild-title-database-master.zip in it

**Follow the steps to [[3DS:Dump system files|dump your system files]] for more in-depth instructions, including those for bootloaders other than [[3DS:boot9strap|boot9strap]].

** ~~When you fix~~ this, delete the out folder and try the ~~failing~~ command again

*The first command in Section II gave the error <code>ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'requirements.txt'</code>

**Make sure you are in the rebuild folder and that you extracted the contents of <code>rebuild-title-database-master.zip</code> into it.

***Once this is fixed, delete the <code>out</code> folder and try the command again.

*The third or fourth command in Section II failed

**Make sure you have <code>boot9.bin</code> and <code>movable.sed</code> in the rebuild folder.

**Make sure your SD card is inserted and you can view and edit its contents.

*The fifth command in Section II failed

**If you are on macOS, try installing {{GitHub|osxfuse/osxfuse/releases/latest|osxfuse}}, either via its GitHub page or via [https://brew.sh Homebrew].

====<code>Input/output error</code> on fourth command in Section II====

{{info|These instructions are for Linux users, and will not work on Windows.}}

#'''''Unmount''''' the SD card from your computer.

#Open up a terminal window, and enter the following commands one at a time:

##<code>watch lsblk</code>

##*After running this command, re-insert the SD card into your computer. The terminal window should now show a new partition of some kind. '''This is the SD card's partition'''. For example, <code>sda -> sda1</code> may have appeared after re-inserting the SD card. Keep this in mind, as you'll need it later.

##*Once you see what partition the SD card is, press <kbd><kbd>Ctrl</kbd> + <kbd>C</kbd></kbd> to stop monitoring the output of <code>lsblk</code>

##<code>fsck /dev/[partition]</code>

##*<code>[partition]</code> is the partition that showed up in the terminal, when you inserted the SD card into your computer. (e.g. <code>fsck /dev/sda1</code> if the SD card showed up under <code>sda -> sda1</code>)

##*If you see <code>fsck: command not found</code>, run the command with <code>sudo</code> (e.g. <code>sudo fsck ...</code>)

You should now be given a few prompts, containing some choices. Below are some possible prompts, and what you should answer with.

*<code>There are differences between boot sector and its backup.</code>

**Choose option 2 for "<code>copy backup to original</code>".

*<code>Orphaned long file name part "[folder name]"</code>

**Choose option 2 for "<code>leave it</code>".

*<code>Free cluster summary wrong <nowiki>(####### vs. really #######)</nowiki></code>

**Choose option 1 for "<code>correct</code>".

Eventually, you will see the following:

*** Filesystem was changed ***

The changes have not yet been written, you can still choose to leave the

filesystem unmodified:

1) Write changes

2) Leave filesystem unchanged</nowiki>

If you are happy with the options you chose, and aren't scared something will break, choose option <kbd>1</kbd> to write changes. After the changes have been written, try re-running the fourth command in Section II and continuing on from there.

[[Category:Nintendo 3DS guides]]