One of the important features of the PS4 on recent firmwares is the possibility to install games on an external USB disk, which can be useful if your internal drive is lacking space. Unfortunately, for user-created packages on hacked consoles, this feature didn’t work (throwing error CE-41798-9). Tools such as app2usb exist as workarounds to this limitation, but might be considered a bit hard to use for some users (more on this below).
Flatz has provided patches to fix the error, and allow fpkg files to be installed on the PS4’s extended hard drive. The developers of some of the payloads for the 5.05 exploits have already updated their payloads such as XVortex.
How to use the support of PS4’s extended storage for fpkg
The PS4 lets you officially extend your hard drive capacity by plugging an external USB hard drive. In order for that drive to be used as the drive where games get installed, a specific procedure needs to be followed, as described on Sony’s site. Specifically:
How to format the HDD as extended storage
Go to [Settings] > [Devices] > [USB Storage Devices].
Select the USB storage device to format and choose [Format as Extended Storage].
How to change the Application Install Location
To change the install location of your applications, you need to choose where you would like to save them. You cannot change the application install location during a download.
Select [Settings] > [Storage], and then press the OPTIONS button.
Select [Application Install Location] > [Extended Storage].
Once you have this kind of setup in place, assuming you use the updated payloads, you should be able to install your fpkg files on the external drive by installing your fpkg files as usual (through the package installer in debug settings)
How this compares to app2usb
app2usb is another way to install games on an external hard drive, which has been around for quite some time. One of the .benefits of app2usb is that it does not require you to format the drive in a PS4 specific way, so the drive can still be accessed on your PC for further manipulation, for example. On the other hand, app2usb can be considered as a bit hard to work with (there’s some config file editing involved), while the extended storage support integrates seamlessly with how the PS4 operates.
As far as I can tell, app2usb and the extended storage support are not incompatible with each other: you can probably have two external hard drives if you want to, one for app2usb, and one for the official external storage support.
Download updated HEN from XVortex, with support for PS4 extended storage
You can download the payload from XVortex’s github here. You can send the payload to your 5.05 PS4 with user friendly tools such as Al-Azif’s PS4 Exploit tool, or on an esp8266.
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