I've used a tool named UUPtoISO to create an ISO file for the 17134 RS4 build. i got the source files using a tool named "UUP dump MiniServer". i ran the ISO creation tool a couple of times and each time it creates some files that aren't binary identical.
\sources\boot.wim
\sources\install.wim
those are the 2 files that aren't always the same. so what can be different? my hunch says its just a time stamp, anyone know for sure?
The UUPtoISO program is well known to use here at TF, thanks to @Kari Finn (he built the environment, leveraging the work of various other component builders). He explains its operation in a tutorial on this tool UUP to ISO: Create Bootable ISO from Windows 10 Upgrade Files. To really understand this program, it helps to look through that tutorial (perhaps again, if you've used it already). But he explains in steps 2 and 3 that a new wim file is generated each time the program is run. Thus, even if you used it twice in quick succession, with no changes to the underlying source files, you'd get two sets of files, each with different time stamps. So yes, your hunch "It's just a time stamp" is essentially correct.
HTH,
--Ed--
Last edited by EdTittel; 18 Apr 2018 at 10:09. Reason: Give more credit to Kari at Wynona's urging
i really mean time stamp in the actual file itself not the date/time of the file. i'm comparing the binary contents of the files.
Yes, you are correct sir. Sorry if my earlier affirmation was not sufficiently clear.
Thanks,
--Ed--
I'm pretty sure you got it just a tad wrong, Ed. It should be thanks to @Kari Finn. Kari started us out making ISOs with his ESD to ISO tutorial, and then on to UUP to ISO and his latest UUPDump tutorial. Othersise we would all be waiting for Microsoft to release ISOs. Because of Kari's work, I can create my own ISO and update my second and third machines much easier and faster.
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