Changes

''See also: [[Data Check and Log Check]]''

''See also: [[Data Check and Log Check]]''

This disc and accompanying WAD file are known as "0002", but the in-program name is "DATA CHECK & LOG CHECK".  There are two known versions of this file; one dumped from @Larsenv's NAND dump collection which is older (1.5.0), and one dumped from a Wii owned by a friend of @fluffy which is newer (1.5.1). The exact circumstances around the deletion of this file are unknown; it is NOT present on all Wiis after factory setup, in fact, it's absent from the majority of them. If you are reading this and have your Wii NAND dump at the ready, check it in ShowMiiWads, because you may find a new version of 0002. We're still not sure how this happens.

This disc and accompanying WAD file are known as "0002", but the in-program name is "DATA CHECK & LOG CHECK".  There are two known versions of this file, both dumped from separate Wiis; 1.5.0 and 1.5.1. The exact circumstances around the deletion of this file are unknown; it is NOT present on all Wiis after factory setup, in fact, it's absent from the majority of them. If you are reading this and have your Wii NAND dump at the ready, check it in ShowMiiWads, because you may find a new version of 0002. We're still not sure how this happens.

Of course, that's just the meta info around 0002; what does it actually do? 0002 is the main app that runs all of the tests ran on each Wii during factory setup. However, 0002 doesn't actually contain any test programs; it reads and launches them off of an external SD card, based on a list of tests also present on said SD card known as all.ini. As this all.ini file is copied to NAND for an unknown reason, albeit removed afterwards, we also have a copy of it as bushing (RIP) salvaged it and uploaded it to HackMii. 0002 will read this file from the SD card, and launch test programs (in DOL format) from the SD card. As such, it's difficult to analyze 0002's behavior without actually having these test programs or all of the contents of the factory SD cards, as we only know about the all.ini and the presence of the test programs in it. It's worth noting that all.ini contains listings for test programs clearly intended only for Wii prototype models and even GameCube units of various types, meaning that it most likely dates back to pre-Wii and was used for some purpose on the GameCube; and that not all of the files are actually present on the factory SD cards, or at least not ran normally, as many of the programs would not even run on a standard retail Wii.

Of course, that's just the meta info around 0002; what does it actually do? 0002 is the main app that runs all of the tests ran on each Wii during factory setup. However, 0002 doesn't actually contain any test programs; it reads and launches them off of an external SD card, based on a list of tests also present on said SD card known as all.ini. As this all.ini file is copied to NAND for an unknown reason, albeit removed afterwards, we also have a copy of it as bushing (RIP) salvaged it and uploaded it to HackMii. 0002 will read this file from the SD card, and launch test programs (in DOL format) from the SD card. As such, it's difficult to analyze 0002's behavior without actually having these test programs or all of the contents of the factory SD cards, as we only know about the all.ini and the presence of the test programs in it. It's worth noting that all.ini contains listings for test programs clearly intended only for Wii prototype models and even GameCube units of various types, meaning that it most likely dates back to pre-Wii and was used for some purpose on the GameCube; and that not all of the files are actually present on the factory SD cards, or at least not ran normally, as many of the programs would not even run on a standard retail Wii.