SD Filesystem: Difference between revisions
. |
|||
| Line 19: | Line 19: | ||
Contains directories "placehld" and "registered". | Contains directories "placehld" and "registered". | ||
Also contains file "private" | Also contains file "private", which stores the 0x10 [[Filesystem_services|#SetSdCardEncryptionSeed|sd card seed verification vector]]. | ||
===placehld and registered === | ===placehld and registered === | ||
"placehld" and "registered" are the | "placehld" and "registered" store game contents; contents are initially downloaded temporarily into the "placehld" folder, and then [[NCM_services#IContentStorage|moved into the registered folder]] when downloading is complete. | ||
Some of the "placehld/<hex>" directories are temp-only and don't get moved into "registered" | Some of the "placehld/<hex>" directories are temp-only and don't get moved into "registered". | ||
No titleIDs are stored in any directories/filenames here. | No titleIDs are stored in any directories/filenames here. | ||
All hex IDs(below | All hex IDs(below 000000XX and NcaId) used here are unique per title/content. XX is calculated as the first byte from the output of SHA-256(NcaId). | ||
Game contents are stored inside [[NAX0]] archives; due to the 4 GB filesize limit on FAT32, contents that are bigger than 4 GB have additional file contents automatically split into separate files. This automatic file-splitting occurs even on exFAT SD cards where it is not necessary. | |||
<sub-directory under Contents> | <sub-directory under Contents> | ||
└── <directories with upper-case hex: | └── <directories with upper-case hex: 000000XX> | ||
└── <lowercase hex [[Content_Manager_services|NcaId]]>.nca | └── <lowercase hex [[Content_Manager_services|NcaId]]>.nca | ||
└── 00 | └── 00 [[NAX0|actual file for data storage]] | ||
└── 01 (storage for file data at +4GB in the actual NCA) | |||
└── {etc} | |||
Revision as of 04:43, 11 February 2018
Overview
sd
└── Nintendo
├── Album
├── Contents
└── save
All files stored under the Contents sub-directories and save/ use the NAX0 format.
Album
Contains the screenshots: "YYYY/MM/DD/<hex>.jpg". These contain some sort of MAC, the system will display an error for screenshots with invalid MACs.
save
Contains system-only savedata "8000000000000000" and "8000000000000124".
Contents
It seems this directory didn't exist until 2.0.0.
Contains directories "placehld" and "registered".
Also contains file "private", which stores the 0x10 #SetSdCardEncryptionSeed|sd card seed verification vector.
placehld and registered
"placehld" and "registered" store game contents; contents are initially downloaded temporarily into the "placehld" folder, and then moved into the registered folder when downloading is complete.
Some of the "placehld/<hex>" directories are temp-only and don't get moved into "registered".
No titleIDs are stored in any directories/filenames here.
All hex IDs(below 000000XX and NcaId) used here are unique per title/content. XX is calculated as the first byte from the output of SHA-256(NcaId).
Game contents are stored inside NAX0 archives; due to the 4 GB filesize limit on FAT32, contents that are bigger than 4 GB have additional file contents automatically split into separate files. This automatic file-splitting occurs even on exFAT SD cards where it is not necessary.
<sub-directory under Contents>
└── <directories with upper-case hex: 000000XX>
└── <lowercase hex NcaId>.nca
└── 00 actual file for data storage
└── 01 (storage for file data at +4GB in the actual NCA)
└── {etc}