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crouse
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Joined: 17 Apr 2003
Posts: 11855
Location: Iowa
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 Posted: Sat Dec 20, 2003 6:48 am Post subject: How To Check MD5sums On A Linux Iso Image |
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At the command prompt cd to the directory containing the iso's
Type md5sum the_name_ofthe_iso.iso
give your computer a minute to figure it out........ and it will display a long number and that should match the md5sum that the download site gave.
If they don't..... you have a corrupted iso file and will need to download again. Checking your downloaded iso's is an important step that shouldn't be forgotten, as it will save you headaches later on........ not to mention lost time.
A good place to read more is here : http://www.linuxiso.org/viewdoc.php/verifyiso.html
And here is what the man pages say about md5sum
| Quote: |
md5sum - compute and check MD5 message digest
SYNOPSIS
md5sum [OPTION] [FILE]...
md5sum [OPTION] --check [FILE]
DESCRIPTION
Print or check MD5 (128-bit) checksums. With no FILE, or when FILE is -, read standard input.
-b, --binary
read files in binary mode (default on DOS/Windows)
-c, --check
check MD5 sums against given list
-t, --text
read files in text mode (default)
The following two options are useful only when verifying checksums:
--status
don't output anything, status code shows success
-w, --warn
warn about improperly formated checksum lines
--help
display this help and exit
--version
output version information and exit
The sums are computed as described in RFC 1321. When checking, the input should be a former output of this program. The default mode is to print a line with checksum, a character indicating type (`*' for binary, ` ' for text), and name for each FILE.
AUTHOR
Written by Ulrich Drepper and Scott Miller.
REPORTING BUGS
Report bugs to <bug-textutils@gnu.org>.
COPYRIGHT
Copyright � 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
SEE ALSO
The full documentation for md5sum is maintained as a Texinfo manual. If the info and md5sum programs are properly installed at your site, the command
info md5sum
should give you access to the complete manual. |
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lynch
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Germ
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| Posted: Sat Dec 20, 2003 11:35 am Post subject: |
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| according to RH documentation, it's a md5sum check.......so how can you trust it? what if that part of the disk is bad from the git-go?
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Desktop: Mandriva 2010.1 PowerPack - kernel 2.6.34.2-tmb-desktop-1mdv
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lynch
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geeshock
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Xeroid
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| Posted: Wed Dec 24, 2003 9:12 pm Post subject: |
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For our new Windows converts who are trying Linux for the first time, here is a kewl program you can download and run under Windows to check your MD5 sums.
http://www.md5summer.org/
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schleyfox
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Germ
Keeper of the BIG STICK
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| Posted: Sat Feb 21, 2004 1:03 am Post subject: |
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| I use this one at work (they make us use Win2K): http://www.blisstonia.com/software/WinMD5/
_________________
Laptop: Mandriva 2010.1 PowerPack - 2.6.34.2-tmb-laptop-1mdv
Desktop: Mandriva 2010.1 PowerPack - kernel 2.6.34.2-tmb-desktop-1mdv
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mmmna
. . . .
Joined: 21 Apr 2003
Posts: 7258
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| Posted: Sat Feb 21, 2004 5:13 am Post subject: |
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| Xeroid wrote: | For our new Windows converts who are trying Linux for the first time, here is a kewl program you can download and run under Windows to check your MD5 sums.
http://www.md5summer.org/ |
And here is a different one - I used this one a lot: md5sum 1.1 for Windows
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irnis
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Germ
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Xeroid
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mmmna
. . . .
Joined: 21 Apr 2003
Posts: 7258
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| Posted: Mon Jul 12, 2004 7:25 pm Post subject: |
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| I relocated this whole thread to the "Tutorials and How To's" forum, because it is accepted as accurate and complete.
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-Kubuntu 10.04 LTS on Celeron D desktop
-PCLinuxOS 2010 LXDE on EeePC 900A with Atom n270 (modded with 32G SATA SSD drive and 2G ram).
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smartcat99s
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| Posted: Tue Dec 21, 2004 2:49 pm Post subject: |
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| I just put cygwin on to do my md5 summing, plus I get bash in windoze.
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Arch Linux - 2.6.28-blackice1 (custom based on git tree/tuxonice)
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JP
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That's how I do it.
