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Old 07-05-2002
samprax samprax is offline
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Join Date: Apr 2002
Location: China
Posts: 3
Question the file: MD5SUM

i downloaded a Linux distribution from a FTP site today, and i found there is a file named MD5SUM in the same directory, with the following contents:


-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

c9a4d963a49e384e10dec9c2bd49ad73 valhalla-SRPMS-disc1.iso
41b03d068e84d2a17147aa27e704f79b valhalla-SRPMS-disc2.iso
cb91810ce8173039fed24420407e4c59 valhalla-i386-disc1.iso
ec1b813d32ffdc8edc2be261735d17de valhalla-i386-disc2.iso
5dc81ce523cfddf99b4d4d63e91bcaa7 valhalla-i386-disc3.iso
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.0.6 (GNU/Linux)
Comment: For info see http://www.gnupg.org

iD8DBQE8z/oCIZGAzdtCpg4RAsMvAJ9+xOn4Pw1T0mp8zVT64cEDWuqqKwCfblTd
4Lw0SvJC+v/6JbGIxJWL7aA=
=0xs+
-----END PGP SIGNATURE-----

what's the usage of the file, and how i can use it?

Thanks!
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Old 07-05-2002
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killerserv killerserv is offline Forum Advisor  
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Join Date: Dec 2000
Location: Phoenix, AZ
Posts: 670
md5sum is a program to check to make sure that the ISO image file you downloaded is good. The file came with Linux Distribution (Mandrake, RH, SuSe Etc.) The md5sums file is tiny--it is only a two line ASCII text file that contains the name of the ISO files and the md5sums that were calculated on their machine (i.e., before being downloaded.)

calculate the md5sums of the ISO images that been downloaded.

md5sum -b *.iso
e258584f8ebcf1d5d16ad63a51eb9321 *Mandrake72-ext.iso
ffcd786f04c76d193379eed4670ecfde *Mandrake72-inst.iso

Check man md5sum for more information.
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