ROM Hack Can Xdelta patch iso's?

[DocLouis]

so im trying to patch Star Fox Adventures Iso with xdelatui but its not letting me choose the output folder. can xdelta actually patch iso?

 

[JuanMena]

so im trying to patch Star Fox Adventures Iso with xdelatui but its not letting me choose the output folder. can xdelta actually patch iso?

Yes it can.
I used it to patch Smash Melee.

 

[FAST6191]

Yes but you may not want to -- xdelta will only see differences so unless you are using a decrypted iso (which also means all your users will need a decrypted iso in the exact same manner).

For the wii, assuming they did not go from some kind of WBFS format ISO (bad form if you ask me) or in game loader (see Smash Brothers exploit related stuff for an example, there were a few others) then for the most part you would have to extract the files that need patching, patch those however you will, and rebuilt the iso into whatever format you like.

 

[SaulFabre]

Try using DeltaPatcher, it is also a .xdelta patcher.
https://www.romhacking.net/utilities/704/

 

[DocLouis]

Try using DeltaPatcher, it is also a .xdelta patcher.
https://www.romhacking.net/utilities/704/

im using this and i get this error
An error has occurred: xdelta3: source file too short: XD3_INVALID_INPUT

 

[SaulFabre]

im using this and i get this error
An error has occurred: xdelta3: source file too short: XD3_INVALID_INPUT

what is the name of the patch file in xdelta?

 

[godreborn]

sounds like a checksum error to me, but I'm not sure.

 

[DocLouis]

what is the name of the patch file in xdelta?

the file is: sfa-amethyst-2.3.xdelta
Edit: the iso I'm using is in nkit.iso format. is that okay?

 

[SaulFabre]

the file is: sfa-amethyst-2.3.xdelta

try deleting the dashes and the points (except the one used for extension).

It should be called: sfaamethyst23.xdelta

 

[DocLouis]

try deleting the dashes and the points (except the one used for extension).

It should be called: sfaamethyst23.xdelta

same error
An error has occurred: xdelta3: source file too short: XD3_INVALID_INPUT

 

[SaulFabre]

same error
An error has occurred: xdelta3: source file too short: XD3_INVALID_INPUT

then as @godreborn said it looks like a checksum error but I'm not sure.
Are you using a clean ISO file of the GCN game?
is the original game file ISO not corrupted? (try loading and playing it for a while using Dolphin Emulator)

 

[godreborn]

your issue may be that you're using an nkit causing that checksum error, if it is one. nkits are compressed isos afaik, so it probably can't be that way.

 

[DocLouis]

then as @godreborn said it looks like a checksum error but I'm not sure.
Are you using a clean ISO file of the GCN game?
is the original game file ISO not corrupted? (try loading and playing it for a while using Dolphin Emulator)

im using an nkit.iso
i've run it through nintendont for a while

 

[SaulFabre]

im using an nkit.iso
i've run it through nintendont for a while

ISOS that are compressed with NKit are not supported by patches made with xdelta.
These patches are made with clean (and uncompressed) vanilla ISOs.
You need to convert your .nkit.iso file back to vanilla GCN .iso using NKit tool by @nanook.
Try using this version that i've made for include all database files (but not the backup partitions for not to make too much size):
https://gbatemp.net/attachments/nkit-tool-v1-4-with-all-latest-dat-files-by-saulfabreg-zip.288667/

Hope this help

 

[godreborn]

you may be able to recompress it after you've patched the iso, but I dunno. it's worth a try anyway. if it doesn't work, just use the uncompressed iso. I think cube games iirc are only 1.35GBs if they're not trimmed, so they're not too big to begin with.

 

[DocLouis]

ISOS that are compressed with NKit are not supported by patches made with xdelta.
These patches are made with clean (and uncompressed) vanilla ISOs.
You need to convert your .nkit.iso file back to vanilla GCN .iso using NKit tool by @nanook.
Try using this version that i've made for include all database files (but not the backup partitions for not to make too much size):
https://gbatemp.net/attachments/nkit-tool-v1-4-with-all-latest-dat-files-by-saulfabreg-zip.288667/

Hope this help

it worked. thanks for the help.
to anyone else that finds this I converted my nkit.iso to an iso using the tool that @nanook made and that worked. also if patch it twice (which I accidentally did) nintendont will crash if it's on screen

 

[SaulFabre]

it worked. thanks for the help.
to anyone else that finds this I converted my nkit.iso to an iso using the tool that SaulFabre made and that worked

an aclaration...
i didn't made the tool of NKit, @nanook is the author of that.
I just included the latest database .dat files from Redump.

 

[DocLouis]

an aclaration...
i didn't made the tool of NKit, @nanook is the author of that.
I just included the latest database .dat files from Redump.

ok i changed it

 

[godreborn]

I'm assuming the xdelta patch is a find+replace by byte sort of thing, which is actually how modified firmware works on the ps3. what's odd is that it even allowed you to patch it twice, because the checksum should've changed after a successful patch unless you were patching the same base iso, then something got messed up when it tried replacing the modified iso. that's probably what happened.

 

[XFlak]

While we're on the topic of applying patches, anyone able to save me the trouble and apply the patch file included with the source of this modified FAT module? I'm not sure which app to use to apply the patch or if it even matters for this particular patch file. The file is in the attachment to this post, thanks!
https://gbatemp.net/threads/ciosx-rev21d2x-yet-another-hot-fix.277659/page-163#post-5092147