[NTLUG:Discuss] iso md5sum question

[./aal]

On Sat, Nov 8, 2008 at 4:43 PM, Wayne Walker <wwalker at bybent.com> wrote:
> On Sat, Nov 08, 2008 at 04:21:16PM -0600, Fred James wrote:
>> All
>> I downloaded ubcd411.zip, unzip'd it to ubcd411.iso and ran md5sum
>> against it ...
>>     md5sum ubcd411.iso returned a number identical to the one posted on
>> the web site
>>     md4sum --check ubcd411.iso returned this message ...
>
> md5sum --check MD5SUM
>
> --check takes an argument of a file fulle of md5sum output lines to match,
> not the name of a file to test.
>
>> "md5sum: ubcd411.iso: no properly formatted MD5 checksum lines found"
>>
>> What am I looking at?  Thank you in advance for any help you may be able
>> to offer
>> Regards
>> Fred James
>

there should be 2 files on the site you get your iso from
file.iso               the disk image to burn

file.md5sum      a text file containing info for md5sum to use
or
file.DIGEST(S)


here is what to do with them

put the iso and the md5sum/DIGEST file in the same directory
run this command to check
md5sum -c file.md5sum  (or file.DIGEST depending on what you have)

then you will get a simple pass/fail output


and
read the manpage for md5sum



hope that helps
./aal