Author: William Penn
Date: 04:55:28 11/29/01
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On November 29, 2001 at 04:03:58, David Rasmussen wrote: On November 29, 2001 at 00:44:11, William Penn wrote: Tablebase questions I've accumulated about 5.5 GB of tablebases from various sources, mostly by downloading from Hyatt's ftp site. (1) My files being from different sources and routes have various attributes set (Archive, Read-only, Hidden). They work OK insofar as I'm aware, but I don't really know for sure. There are no error messages, at least. Does it make any difference how the attributes are set? That would be easy to change, but I don't have any idea what is correct. (2) There were lots of download interruptions, which were resumed automatically using my ftp client (WS_FTP95 LE). I'm not aware of any errors. I've checked manually and the number of bytes in each file is correct, as compared to Hyatt's values. However I would feel more confident if there were some other kind of independent verification such as a checksum for each tablebase file. Is such a utility and checksums (or whatever) available for Windows or DOS? (3) I haven't downloaded the King + 3 pieces versus King (KxxxK) tablebases based on advice that they aren't of real value. Is that true? If not, which ones would be more important? I'm asking because I'm running out of hard drive space now!? Thanks, WP > >You can always ask people that you are "sure" have the correct files, to make an >MD5SUMS file for you, to check your files against. Read about MD5SUMS on the net >if you don't know about it. Google is your friend :) > >/David > Thanks for the steer. I came up with the following. Now I need to know who is interested in collaborating on this project? Presumably if any two people generate these sums independently, and if they are the same, odds are good that everything is correct. Right? (Hopefully my Boolean friends will agree.) After the sums are verified in that manner, I'm willing to publish them on my website for all to access in future, and/or provide them for others to publish. So... Anyone who is interested, please let me know! That answers my #2 question, and I'm still looking for answers to #1 and #2. WP ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ http://www.linuxiso.org/md5sum.html How To Check MD5sums On A Linux Iso Image MD5 Sums are 32 byte character strings that are the result of running the MD5 sum program against a particular file. Since any difference between two files results in two different strings, MD5's can be used to determine that the file or iso you downloaded is a bit-for-bit copy of the remote file or iso. If you are running one of the GNU/Linux distributions, you should already have the MD5 program installed. If you run Windows and don't have the program, you can download a dos shell version here (http://etree.org/software/md5sum.exe) or a Windows version here (http://homepages.ihug.co.nz/~floydian/md5/). The Windows version can be downloaded in .zip or .exe format, and installed in the usual manner. The DOS version file is the executable program file. Once downloaded, copy or move it to your c:\windows\command directory. Then, open up an MS-DOS window, and go to the directory of the downloaded iso file that you wish to check. Once you are in that directory, type: md5sum the_name_of_the.iso If you have a problem with the DOS 8.3 file name limit, just rename the .iso file to an 8.3 name similar to the original file name. Once the program has run, and it will take a few minutes to run on a 640 megabyte file, a 32 digit md5sum will be generated. This sum should be exactly the same as the listed md5 sum for the specific iso you downloaded. If the sums are different, then your downloaded iso is not an exact copy, and will have to be downloaded again. It's a bother, but it happens. Better to know before you waste time and energy trying to install something that is never going to install. On occasion I do make mistakes posting MD5Sums. If you have a question about the posted MD5Sum, email me. Carlie (mailto:carlie@linuxiso.org)
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