1. Syntax

wwt [option]... command [option|parameter|@file]...

2. Features of wwt

wwt can work with WBFS drives and partitions and with WBFS files. When creating plain WBFS files the tools try to create sparse files to reduce disk usage. Most commands accept multiple working WBFS to add, modify or extract more than one WBFS with one command.
The working WBFS are defined by the options -part, --auto and --all. The option @--auto scanns all drives for valid WBFS partitionss.
»wwt FORMAT« will format a WBFS partition or file. Together with option --recover it try to recover an already existing WBFS.
»wwt LIST« list the discs of one ore more WBFS as a text table. Options like --long, --mixed, --unique, --no-header, --sections and more control the formating.
Try the abbreviations »wwt LS«, »wwt LL«, »wwt LLL« or »wwt LM«.
»wwt ADD« will add Wii discs in any file formats to one or more working WBFS. The options --update, --newer, --sync --ignore and many more controls the operation. Cloning of WBFS is done with this command too.
»wwt ADD« can also read from extracted file system to compose a disc on the fly (like »wit COPY«). This functionality is also called »Partition builder« or »Disc builder«. Xbox Bios Files For Xemu
While adding a disc you can patch ID, disc title, IOS and region. Objects for patching are disc header, ticket, tmd and boot.bin. If necessary the partitions will be fake signed (trucha sign) automatically. These are "hacked" versions that can boot unsigned software
»wwt UPDATE« is a shortcut for »wwt ADD --update« and »wwt SYNC« for »wwt ADD --sync«.
»wwt EXTRACT« will extract Wii discs and copy them to files in any file formats. If more then one working WBFS is set, each ISO image is searched in all working WBFS until found.
»wwt REMOVE« will remove Wii discs from all working WBFS.
»wwt VERIFY« verifies all ISO images of all working WBFS to find bad dumps. This is done by calculating the SHA1 checksums and comparing them with the stored checksums.
The commands »wwt ANALYSE«, »wwt CHECK«, »wwt REPAIR« and »wwt RECOVER« can be used for analyzing, checking and repairing WBFS.
»wwt CHECK« check the WBFS for different kinds of allocation errors. This check ist very fast (less than 1 second). All commands, which will modify the WBFS, do a silent check and report, if harmless errors found, or stop execution, if harmful errors found.
»wwt DUMP« will print the data structures and information of WBFS partitionss and files. This is good for analysis.
wwt (and also wit) supports time stamps for discs in WBFS containers like other file systems.
For all commands working with Wii ISO images the options --include, --include-path, --exclude and --exclude-path setup up filters to decide which ISO images are used for the operation.
The options --quiet and --verbose control the verbosity. Both option can be set multiple times to decrease or increase the verbosity.

Read »Features« for features of the whole toolset.

Xbox Bios Files For Xemu Jun 2026

These are "hacked" versions that can boot unsigned software.

Restart the emulator to see the iconic green "X" boot animation.

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Without a valid BIOS file, Xemu is effectively an empty shell—it has the hardware mapped out, but no soul to make it run.

The single legal method to obtain these files is to dump them directly from a physical, original Xbox console that you own. Prerequisites for Softmodding/Hardmodding

To run the Xemu emulator, you need specific system files that mimic the hardware of a real Xbox. Because these files are copyrighted by Microsoft, the emulator cannot include them, and you must legally acquire them from your own physical console. Required Bios & System Files

For legal reasons, you must obtain these files yourself. The only strictly legal method is .

Xemu strictly requires the BIOS file to be exactly 256 KB (262,144 bytes) in size. If your dumped BIOS is 1 MB or 512 KB, it must be resized or trimmed before Xemu will accept it. The Complete Xemu Required File Checklist

This is a topic that requires a clear understanding. As Xemu's documentation states, the to obtain these files is to dump them yourself from a physical, original Xbox that you own. The emulator is the platform; the copyrighted files are your responsibility.

This article explains what Xbox BIOS files are, why you need them, where to find them (legally), and how to set them up in Xemu.