Editing Playstation Update Package (PUP)

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=== PS Vita ===
=== PSVita ===


PUP contains updates for different partitions of the system. Most packages, once decrypted, decompressed and pieced together are a raw disk image for the partition to update. Sometimes, a TAR archive patch is also used along with the disk images but not as often. Sony usually releases three kinds of update files, each to update different components: release, systemdata and preinstall.
Each PUP contain updates for different partitions of the system. Most packages, once decrypted, decompressed and pieced together are a raw disk image for the partition to update. Sometimes a TAR archive patch is also used along with the disk images but not as often. Sony usually releases three kinds of update files, each to update different components: full, systemdata and preinst.


There are different types of PS Vita .PUP files:
There are different types of PSVita .PUP:


==== release - full - rel ====
==== full ====
 
This contains the actual system files. The main components are <code>os0</code>, <code>vs0</code>, and the [[Boot Sequence|bootloader partition]].
Release PUPs update most [[Partitions|partitions]]. This contains the actual system files. The main components are <code>os0</code>, <code>vs0</code>, and the [[Boot Sequence|bootloader partition]].
 
==== systemdata - sd ====


==== systemdata ====
Systemdata PUPs only update the <code>sa0</code> [[Partitions|partition]]. It is likely separated from the main update due to it not regularly needing updates and size concerns.
Systemdata PUPs only update the <code>sa0</code> [[Partitions|partition]]. It is likely separated from the main update due to it not regularly needing updates and size concerns.


==== preinstall - preinst ====
==== preinst ====
 
Preinst PUPs only update the <code>pd0</code> [[Partitions|partition]]. This is the [[Welcome Park]] application and the initial setup movie. It is likely separated from the main update because of the size.
Preinstall PUPs only update the <code>pd0</code> [[Partitions|partition]]. This is the [[Welcome Park]] application and the initial setup movie. It is likely separated from the main update due to it not regularly needing updates and size concerns.


==== com ====
==== com ====
 
Unknown. Maybe stands for Common.
Unknown. Maybe stands for Common or for Communication in the case it would target COM PS Vita i.e. PS Vita that have a 3G Modem.


==== modeldiff ====
==== modeldiff ====
Unknown. Maybe stands for Model Differences.


Unknown. Stands for Model Differences.
==== Debug ====
Debug updates for [[PTEL-XXXX]] and [[PDEL-XXXX]] do not separate into different PUPs. A single PUP will update all components. Additionally updates for PDEL units contains updates for the CP and probably other development unit specific components.


== Revisions ==
== Revisions ==
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