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[How To] Check MD5 sums

OP nmyeti

22nd June 2011, 05:18 PM   |  #1  
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I've seen a large number of posts in the various ROM/Radio threads that indicate to me that many of our users do not know how to check MD5 sums. I wrote this post in the BAMF sense 3.0 thread, but it will be buried there in a matter of minutes. Moderators, i understand this isn't strictly thunderbolt development related, but given the number of questions about this in this forum, I thought this might be appropriate, if you disagree, please move.

On windows use

http://download.cnet.com/MD5-Checker...-10410639.html

Unzip and launch md5.exe

Copy the MD5 hash sum of the rom you downloaded to your clipboard


Hit the paste button in the MD5.exe program


Browse to the file you downloaded


If the codes match the box goes green and the text tells you that the codes match.

On Linux;
cd Downloads (assuming Downloads is the path of the file)
md5sum BAMFROMYOUJUSTDOWNLOADED.zip

Check the output of the md5sum command against the has posted in the thread. Also note that the md5sum command on Linux doesn't like special characters such as () / or anything in the rom name. You can rename a file without changing the MD5 hash, so keep this in mind.
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ad0131065
22nd June 2011, 05:58 PM   |  #2  
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Just figured I would mention that if you are doing it on your device you can download hash Droid from the market and do it that way also

Sent from my ADR6400L using XDA App
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22nd June 2011, 06:13 PM   |  #3  
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Quote:
Originally Posted by nmyeti

I've seen a large number of posts in the various ROM/Radio threads that indicate to me that many of our users do not know how to check MD5 sums. I wrote this post in the BAMF sense 3.0 thread, but it will be buried there in a matter of minutes. Moderators, i understand this isn't strictly thunderbolt development related, but given the number of questions about this in this forum, I thought this might be appropriate, if you disagree, please move.

On windows use

http://download.cnet.com/MD5-Checker...-10410639.html

Unzip and launch md5.exe

Copy the MD5 hash sum of the rom you downloaded to your clipboard

Hit the paste button in the MD5.exe program

Browse to the file you downloaded

If the codes match the box goes green and the text tells you that the codes match.

On Linux;
cd Downloads (assuming Downloads is the path of the file)
md5sum BAMFROMYOUJUSTDOWNLOADED.zip

Check the output of the md5sum command against the has posted in the thread. Also note that the md5sum command on Linux doesn't like special characters such as () / or anything in the rom name. You can rename a file without changing the MD5 hash, so keep this in mind.

On a mac, from the home directory in terminal, you can just type

md5 [drag-and-drop the zip file you downloaded] and hit enter. It will give you your md5sum
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22nd June 2011, 06:23 PM   |  #4  
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Also AFV in the market Android File Verifier works like a charm!

Sent from my ADR6400L using Tapatalk
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22nd June 2011, 07:14 PM   |  #5  
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Great guide OP , you're right, this one comes up a lot.

I personally use astro file manager. Navigate to the file, long press and select "Details". Give it a few seconds and it will give you the MD5 checksum .
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22nd June 2011, 07:55 PM   |  #6  
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The previous two posts mentioned AFV and Astro. I had been using AFV with good success. Recently I learned of Astro's ability to extract the MD5 sum in the manner lrs421 mentions. That's the way I've been approaching it of late.

I've not been doing this rooting/flashing thing for long and have yet to have a download come up bad, but when one does, I want to know before I screw up my Bolt with it. So checking MD5 sums is, for me, an essential step.

Thanks to the OP for a good tutorial thread!
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22nd June 2011, 08:02 PM   |  #7  
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Quote:
Originally Posted by SF Bolt

Also AFV in the market Android File Verifier works like a charm!

Sent from my ADR6400L using Tapatalk

Yup. This is the way to go. Astro too but I prefer AFV.
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15th February 2012, 05:07 AM   |  #8  
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Thanks for this, I've been trying to figure out how to do this.
15th February 2012, 06:53 AM   |  #9  
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I've flashed so many roms my buttons are wearing out, and I have never once checked an md5....

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15th February 2012, 01:44 PM   |  #10  
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step 1: get linux, cuz windows sucks

step 2: open a terminal

step 3: type

md5sum (file name) (path to file name) or just drag in the zip to the terminal

step 4: hit enter

theres the md5sum

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