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| − | '''IOS''' (internally known as '''IOP-OS''' and '''boot3''') is the Wii's operating system running on the [[IOP]] (Starlet) ARM9 core inside the [[Hollywood]]/[[Bollywood]] package, developed by [[BroadOn]]. It handles I/O and security tasks, providing hardware access to the [[Broadway]] as well as serving as a barebones 'hypervisor' for the system upholding content licensing restrictions. This article lists all of the known IOS versions, and their details/differences. | + | '''iOS''' (formerly '''iPhone OS''') is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone and iPod Touch; the term also included the versions running on iPads until the name ''iPadOS'' was introduced with version 13 in 2019. It is the world's second-most widely installed mobile operating system, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS. It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses. |
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| − | ==General Notes==
| + | Unveiled in 2007 for the first-generation iPhone, iOS has since been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (introduced: January 2010; availability: April 2010.) As of March 2018, Apple's App Store contains more than 2.1 million iOS applications, 1 million of which are native for iPads. These mobile apps have collectively been downloaded more than 130 billion times. |
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| | + | Major versions of iOS are released annually. The current stable version, iOS 14, was released to the public on September 16, 2020. It brought many user interface changes, including the ability to place widgets on the home screen, a compact UI for both Siri and phone calls, and the ability to change both the default web browser and email apps. No devices were dropped, as all devices supported by iOS 13 are able to run iOS 14. |
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| − | *All retail IOSes have "64" in the filename, and some development IOSes have "128" in the filename; this signifies the [[MEM2]] size that the IOS is configured to run on. MEM2 is the Wii's larger main memory, not present in the GameCube, and while retail units have a 64MB MEM2, certain development units ([[NDEV]] and [[RVT-H Reader]]) have a 128MB MEM2; as such, IOSes built to run on these units have "128" in their filename, and IOSes built for 64MB development kits and retail units have "64" in their filename.
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| − | **IOSes use two different version number schemes; one is used for retail IOSes and is seen on Nintendo's update servers and discs, and another is used for development IOSes and internal purposes. As such, all retail IOSes in the folder use one scheme, and all development IOSes use another. As quoted from Wiibrew: "Each IOS has a 16-bit version number in its TMD. This version number is seen in decimal form in the filenames of IOS WADs on update partition (e.g. "IOS9-64-v516.wad" for version 516 (decimal)). Converted to hex, that 516 becomes 0x0204, and can be read as "2.4" -- IOS9, version 2.4." The "IOS-64-v" format is used for retail IOSes, and "firmware.64/128.(hex version number).(major version)" is used for development IOSes.
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| − | ***Development IOSes are similar to retail IOSes, however they use the development encryption keys in place of the real ones, meaning that they will only handle development-signed content, which retail IOSes will not handle. It should be noted that since the development private RSA key is public information (or rather, developer information which has been leaked), it is possible to sign arbitrary content and install it with development IOSes.
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| − | *There are around 253 possible IOS "slots", referring to the IOS's major version, which is, aside from one known exception, also the IOS's title ID in hex form. (IOS1 and IOS2 would not be possible without using different title IDs, as those title IDs would conflict with those for boot2 and the System Menu, respectively. IOS0 may also not be a valid title ID.) However, the highest slot number that Nintendo ever assigned a non-stub IOS was 80, meaning that all IOS slots above 80 can only ever be filled with unofficial IOSes, official IOSes with their title IDs changed, or Nintendo's stubs designed to overwrite unofficial IOSes. | + | *iphone |
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| − | *Stubs are "dummy" IOSes, that are installable but not usable and contain only a few kilobytes of content. These were intended to save space on NAND after updates, but also served as anti-downgrade protection.
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| − | *For unknown reasons, Nintendo stubbed almost every System Menu IOS after updating the System Menu to a new version which didn't use it. It's possible that this was meant to be anti-downgrade protection of some sort.
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| − | **System Menu versions are independent of IOS versions aside from the one set in their TMD, and when this document mentions an IOS coming with a System Menu version, that just means it was part of the same NUS update batch, not that the actual System Menu version has any relation to that IOS.
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| − | *For unknown reasons, Korean Wiis had many technical changes from Wiis of other regions, including using entirely different encryption keys. Nintendo made several IOS branches and even an entire System Menu version (3.5) dedicated to Korean Wiis, and these IOSes are similar to development IOSes in that they only handle Korean-signed content.
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| − | **The IOS40 series seems to have been dedicated to Korean IOSes, and is also notable for skipping almost every other slot. It had many Korean counterparts to international IOSes, used for the Korean versions of those games.
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| − | *Aside from IOSes which were never released/leaked, there are two known missing IOSes; IOS40-64-v2835, which is a Korean IOS, and the IOS5 stub (as opposed to the fake IOS5).
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| − | *There are some "Generic IOSes", IOSes where not much is known about their status/uses.
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| − | *There are several odd gaps and missing IOSes when going sequentially down the list; it's unknown what the purpose of these are, possibly internal IOSes being skipped over.
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| − | **If an IOS is not listed, that means it doesn't exist, or we don't cover it. Please also refer to [http://wiibrew.org/wiki/Template:Navbox_IOS WiiBrew's listing] for reference.
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| − | *More IOSes are covered here than are actually dumped and available, since some unreleased IOSes are covered as well as a few anomalies.
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| | ==IOS Version History== | | ==IOS Version History== |
iOS (formerly iPhone OS) is a mobile operating system created and developed by Apple Inc. exclusively for its hardware. It is the operating system that powers many of the company's mobile devices, including the iPhone and iPod Touch; the term also included the versions running on iPads until the name iPadOS was introduced with version 13 in 2019. It is the world's second-most widely installed mobile operating system, after Android. It is the basis for three other operating systems made by Apple: iPadOS, tvOS, and watchOS. It is proprietary software, although some parts of it are open source under the Apple Public Source License and other licenses.
Unveiled in 2007 for the first-generation iPhone, iOS has since been extended to support other Apple devices such as the iPod Touch (September 2007) and the iPad (introduced: January 2010; availability: April 2010.) As of March 2018, Apple's App Store contains more than 2.1 million iOS applications, 1 million of which are native for iPads. These mobile apps have collectively been downloaded more than 130 billion times.
Major versions of iOS are released annually. The current stable version, iOS 14, was released to the public on September 16, 2020. It brought many user interface changes, including the ability to place widgets on the home screen, a compact UI for both Siri and phone calls, and the ability to change both the default web browser and email apps. No devices were dropped, as all devices supported by iOS 13 are able to run iOS 14.
IOS Version History
See IOS/Versions
References
In order of use:
1 - http://wehackwii.pbworks.com/w/page/8844411/IOS%20and%20RVL%20Downloads
2 - http://wiibrew.org/wiki/IOS_History and associated IOS pages
3 - RGD original research
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