*.md5sum...What's it for?
Hi all, My friend is going to install scientific linux on his machine...he sent me this thing... (ftp://ftp.scientificlinux.org/linux/scientific/307/iso/x86_64). File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB The question is what is the last "File: SL.307.060906.x86_64.md5sum". Sure he have to burn first 4 ones on the CD but what should be done with the last one? I doubt that it should be burned on the 5th disk. Sorry for little bit offtop and thanks in advance... Regards, Sergey -- Sergey Mkrtchyan, Scinetific Researcher, Department of Molecular Physics, Faculty of Physics, Yerevan State University
Sergey Mkrtchyan wrote:
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum". Sure he have to burn first 4 ones on the CD but what should be done with the last one? I doubt that it should be burned on the 5th disk.
It most probably contains the checksums of the 4 ISOs, which your friend could have used to check the downloads: md5sum -c SL.307.060906.x86_64.md5sum /Per Jessen, Zürich
Per Jessen wrote:
Sergey Mkrtchyan wrote:
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum". Sure he have to burn first 4 ones on the CD but what should be done with the last one? I doubt that it should be burned on the 5th disk.
It most probably contains the checksums of the 4 ISOs, which your friend could have used to check the downloads:
md5sum -c SL.307.060906.x86_64.md5sum
Thank you very much... So after downloading all four he have to put the 5th file in the same place and execute the command you gave? Did I got it correctly? Thanks once more, Sergey
Sergey Mkrtchyan wrote:
It most probably contains the checksums of the 4 ISOs, which your friend could have used to check the downloads:
md5sum -c SL.307.060906.x86_64.md5sum
Thank you very much... So after downloading all four he have to put the 5th file in the same place and execute the command you gave? Did I got it correctly?
Yep, that's exactly it. Sometimes an FTP download doesn't go quite right, so checking the checksums before you burn the CDs is a good idea. And it doesn't take very long. /Per Jessen, Zürich
Hi all,
My friend is going to install scientific linux on his machine...he sent me this thing...
(ftp://ftp.scientificlinux.org/linux/scientific/307/iso/x86_64).
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum". Sure he have to burn first 4 ones on the CD but what should be done with the last one? I doubt that it should be burned on the 5th disk.
That is a text-file that contains the md5sums of the iso-files. It is meant to check if you have downloaded the files correctly: md5sum your-iso-file.iso This will give you the md5sum of your-iso-file.iso. If everything is downloaded as it should, you will see the same value as is mentioned in the *.md5sum-file.
Sorry for little bit offtop and thanks in advance...
We all had to learn ;-)
Regards, Sergey
-- Sergey Mkrtchyan, Scinetific Researcher, Department of Molecular Physics, Faculty of Physics, Yerevan State University
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Wednesday 2006-09-20 at 17:35 +0500, Sergey Mkrtchyan wrote:
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum". Sure he have to burn first 4 ones on the CD but what should be done with the last one? I doubt that it should be burned on the 5th disk.
It is a text file used to check the validity of the other four files _before_ burning them. Ie, to ascertain that you downloaded them correctly. Usually done this way: md5sum --check SL.307.060906.x86_64.md5sum More details in "man md5sum". Also in the dowload page of those sites. It can be used as well to check the CD after burning it. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFFETZItTMYHG2NR9URAoRiAJ0c6385u70DvDXgoEi22bhkl5iOBACfSq9+ VHcGCLwlgNC3tVMX5N3ZjaA= =J5Fw -----END PGP SIGNATURE-----
Carlos E. R. wrote:
It is a text file used to check the validity of the other four files _before_ burning them. Ie, to ascertain that you downloaded them correctly. Usually done this way:
md5sum --check SL.307.060906.x86_64.md5sum
More details in "man md5sum". Also in the dowload page of those sites.
It can be used as well to check the CD after burning it.
This is good information to have. I would like to see it included in the instructions on the download page. I remember when I downloaded my first copy of SuSE 10.0, I had much trouble finding out how to use the md5sums. --ED--
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Wednesday 2006-09-20 at 08:49 -0400, Ed McCanless wrote:
This is good information to have. I would like to see it included in the instructions on the download page. I remember when I downloaded my first copy of SuSE 10.0, I had much trouble finding out how to use the md5sums.
It sure should be there. It is considered common knowledge, usually, but there is always a first time for everything. - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Made with pgp4pine 1.76 iD8DBQFFEU0StTMYHG2NR9URAlVRAJ40KMD41l+uBRtdrsLRKk5n1g/cbQCgkH29 MDAUMv9qs1wZuxh7UtGC5n8= =UOxg -----END PGP SIGNATURE-----
Sergey Mkrtchyan wrote:
My friend is going to install scientific linux on his machine...he sent me this thing...
(ftp://ftp.scientificlinux.org/linux/scientific/307/iso/x86_64).
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum". I would guess this is a text file containing the md5sums for the 4 iso files, to verify the download before you burn a bad image to create a bad cd. I believe you check it with md5sum <name of iso file> and verify the result with the last file. If they agree, burn with confidence.
-- Joe Morris Registered Linux user 231871
On Wednesday 20 September 2006 8:38 am, Joe Morris (NTM) wrote:
Sergey Mkrtchyan wrote:
My friend is going to install scientific linux on his machine...he sent me this thing...
(ftp://ftp.scientificlinux.org/linux/scientific/307/iso/x86_64).
File: SL.307.060906.x86_64.disc1.iso 636218 KB File: SL.307.060906.x86_64.disc2.iso 656198 KB File: SL.307.060906.x86_64.disc3.iso 655622 KB File: SL.307.060906.x86_64.disc4.iso 671748 KB File: SL.307.060906.x86_64.md5sum 1 KB
The question is what is the last "File: SL.307.060906.x86_64.md5sum".
I would guess this is a text file containing the md5sums for the 4 iso files, to verify the download before you burn a bad image to create a bad cd. I believe you check it with md5sum <name of iso file> and verify the result with the last file. If they agree, burn with confidence. If the md5sum file is set up correctly, md5sum --check SL.307.060906.x86_64.md5sum Should check the above ISOs. I recently had a problem downloading a Debian ISO, and the first ISO would not download properly. I ended up downloading it on my system with ftp and I was able to get it to verify properly.
--
Jerry Feldman
Well, thanks to everyone, friends! That was new thing for me, but now one more thing is already on it's shelf. Thank you all once more. Best regards, Sergey -- Sergey Mkrtchyan, Scinetific Researcher, Department of Molecular Physics, Faculty of Physics, Yerevan State University
participants (7)
-
Carlos E. R. -
Ed McCanless -
Jerry Feldman -
Joe Morris (NTM) -
Leen de Braal -
Per Jessen -
Sergey Mkrtchyan