Ultimate Boot CD

Can anyone explain why the ISOs generated by mkisofs, with the exact same source and having the exact same size (195,698,688 bytes), end up with different MD5s? Also of interest is that Nero's "Copy CD" feature generates ISOs of 195,739,804 bytes (with the same source files off from a CD) ...

bldrdash With respect to this thread about mkisofs & pathspec: Thanks for clarifying the "." issue. I had interpreted what it said on the Customizing UBCD page as the "." being mandatory and thus was careful to always included it at the end. Since I was already defining my ow...

>> I'm not sure what you mean by produce an ISO with the pathspec tree. This mkisofs manual page: http://linuxcommand.org/man_pages/mkisofs8.html defines pathspec as the path of the directory tree to be copied into the iso9660 filesystem. >> make sure you're running a mkisofs with the -exclude-list ...

>>or are you attempting to generate the ISO and compare the MD5 from that? Yes, to both be able to verify via the publicly offered MD5 and to have a reliable standard ISO generation process. That's why I thought it was worth starting a new thread. >>on the same machine, with the same options and con...

Thanks for trying Constance. I tried using Nero's Copy function to create an ISO. Got the same #MB, but no sum match. Have made many, many attempts to replicate the mkisofs process on the customize page. Ended up starting this new thread: http://www.ultimatebootcd.com/forums/viewtopic.php?t=269 Hope...

mkisofs, ISO from pathspec ONLY. Customize. Several days of trial & research -- no joy. PLEASE Can anyone tell me how to produce an ISO with ONLY the pathspec tree? And to NOT include everything in the current working directory tree? Do NOT want to copy mkisofs & its batch file into the ISO....

Hey Constance,
Good to know. Any advise on generating an ISO from the CD contents? Which utility to use?
Nero 5.5 has several options under the ISO tab. Any idea which were used to make that downloadable ISO?
Thanks

Hey bldrdash, Thanks for the info on the GNU CoreUtils package. Have to get what I've got working first before I install any more large packages. I was able though, to convert from that Linux preferred format with my text editor and yes we have a match on 2602 files! When I had both text wrapping an...

Thanks for trying bldrdash, But the MD5 Checksum txt file I get from my CD (from the procedure above) gets checksums for 2643 files. This txt file is about 197KB and takes 2 to 3 minutes to generate. The sums you provided above are of a slightly different format and are for 737 files. Did your post ...

Thanks bldrdash, >>But, I'd be surprised if your own ISO extraction from a CD came out with the same hash. Exactly. I'm guessing at a minimum it would have to have an exact name & date to match the MD5 values on the download page. >>In order for anyone to provide a MD5 sum of the list of files o...

I ordered UBCD on CD (slow dial-up here), but I'm now skeptical about the source. Would anyone be willing to provide an MD5 Checksum txt file for UBCD v3.3? Or please explain how I can get the MD5 checksum value for the "ISO" (given for the downloads) off this CD. An MD5 Checksum txt file ...