A checksum or hash sum

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25 views

md5deep create checksum for directory with relative paths

How do I create checksum for a directory with md5deep, for checking duplication in another location? For example: I want to create checksum file for /home/user/Documents and I want check duplicate ...
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1answer
58 views

How to generate sha1 hashes of a whole dvd?

How can I generate one text-file containing all sha1 hashes of all files on a dvd with many folders and subfolders?
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1answer
49 views

MD5 of official Ubuntu downloads NEVER match

I have tried to download the 14.04.1 and 14.04 versions of Ubuntu serveral times from different mirrors on different PCs/Laptops using Firefox to download from the site and BitTorrent to download via ...
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1answer
25 views

How does the ubuntu Live CD check itself for defects?

One of the options when you boot up the CD is to check itself for defects. How does it do this? Surely there could be a defect that gives a false positive? Or is that incredibly unlikely - does it use ...
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34 views

Easy way to create an installation USB

Unetbootin and other scripts are too much of a hassle, and dd is just plain scary. How can an unenlightened user like me create an Ubuntu installation USB using intuitive, colorful graphical tools?
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381 views

14.04.1 md5sums

The official checksum page only goes until 14.04. Where can I check my 14.04.01 download (119cb63b48c9a18f31f417f09655efbd)?
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174 views

MD5 says the checksum is correct but still “Check finished: errors found in 2 files”

I'm attempting to dual boot windows 8.1 and ubuntu but I can't quite seem to create a USB boot drive without errors. Twice now I have downloaded ubuntu-14.04-desktop-amd64 from the official website, ...
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2answers
43 views

Where I can I find an image 11.04? [duplicate]

I am running a older Toughbook CF 29 and had I think 11.04. I tried to upgrade to 12.04 but it didn't take. So I am looking for a stable image. Could some one point me in the right direction? I would ...
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1answer
47 views

Recursive Checksumming

I've been using the following command line to do recursive checksumming of directories. It seems to get the job done, but still being a newbie I've been wondering, are there any potential problems ...
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530 views

“The ./boot/grub/efi.img file failed the MD5 checksum verification.”

Related question: Why does integrity check fail for the 12.04.1 Alternate ISO? I downloaded and wrote ubuntu-12.04.3-server-amd64.iso to a USB key, but when I boot from it and select "Check disc for ...
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2answers
453 views

Better solution to a wrong md5 checksum

Sometimes, while downloading the ISO installation file, it may get corrupted on the way and becomes unfit for use. One possible solution that I know to deal with this problem is re-downloading the ...
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3answers
7k views

How to check crc of a file?

I was looking this question and appears everything but crc. Is there a good Ubuntu way around there to do this?
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1answer
350 views

is there a way to ignore checksum error?

I have downloaded installer of Mathematica from it's website but checksum does not match and i can't install it. Is there any way to ignore checksum and install it anyway?
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1answer
751 views

How to force the installation of a modified .bin file?

I modified a .bin file for the software ELAN so the path to one of my libraries is correct (after installation, ELAN can't find the library because the path is not right). So I used Emacs to correct ...
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0answers
2k views

Where are the instructions for checking md5 checksums? [duplicate]

Possible Duplicate: How can I check the integrity of a downloaded Ubuntu CD? Where do I find instructions for making sure the Ubuntu ISO I download is correct?
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2answers
555 views

is there a simple way to check a live CD for errors?

I was trying to use 2 methods "HOWTOMD5SUM" and "HOWTOSHA256SUM", but they are all way complicated for a newbie. Is there an application that could do the same in a simple way? I've already tried ...
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2answers
93 views

How can I validate an installation DVD?

I have downloaded an Ubuntu ISO and burned it to DVD. While installing from the DVD onto VirtualBox I got an error which suggested either the HDD or DVD or overheating were the cause. I am ...
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1answer
98 views

How can I find out if Nautilus uses copy/move validation?

Normally I use rsync or rdiff-backup to copy or move large amounts of files around with validation activated. I don't know if Nautilus uses some kind of verification on copy or move commands.
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1answer
233 views

How to verify if an uploaded file was uploaded correctly

I have uploaded an ISO file to my server via rsync. How can I verify it is correct (Not corrupted or something). This is just in case rsync had an problem.
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40k views

How do I check the SHA1 hash of a file?

How do I check the SHA1 hash of a file?