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Questions tagged [sha256]

27 questions
20
votes
7 answers

“Hash sum mismatch” error due to identical SHA1 and MD5 but different SHA256

When running apt full-upgrade or apt update I'm getting several logs that are more or less the same as this one, where there is an identical filesize, SHA1 and MD5 but different SHA256: E: Failed to fetch…
RyanQuey
  • 313
6
votes
1 answer

Is it possible to find the SHA256 hash of a webpage?

How can I find the SHA256 hash of a webpage using Linux tools (CURL, etc.)?
BlazePascal
  • 65
6
votes
0 answers

Winetricks sha256sum mismatch! Rename "x" and try again

this is my first post so sorry for any tardiness. I am trying to install this: Tree of Savior - Steam Which requires Winetricks in the list of dependencies. However when downloading the Steam installer .exe I am always getting this error: >…
user835614
5
votes
1 answer

How to check the md5sum and sha256sum of a directory (an entire folder)?

In the terminal it's easy to find the md5sum of a single file, but how about for an entire directory? And would the same apply to sha256sum?
J. Doe
  • 93
3
votes
1 answer

SHASUMS AND grep in verifying Ubuntu download

I'm trying to better understand the use of "SHA256SUMS" and "grep." The Ubuntu verify and authenticate tutorial uses the following term: "sha256sum -c SHA256SUMS 2>&1 | grep OK" to verify the download hasn't been corrupted. I understand it's…
JWNWSA
  • 167
2
votes
3 answers

unable to generate the hash for netbeans 8.2

I am unable to generate the hash for the netbeans 8.2 for Ubuntu 16.04 after I write the command: ravi@Dell:~/Downloads$ sha256 netbeans-8.2-linux.sh mlockall: Cannot allocate memory Warning: couldn't lock memory, are you root? Enter passphrase:…
PiePhy
  • 21
2
votes
2 answers

sha256sum mismatch in cloud images

Is anyone having issues with the 6/20 build? http://cloud-images.ubuntu.com/xenial/current/xenial-server-cloudimg-amd64-root.tar.gz We have an automated process which downloads images. First the sha256sum check passed but we saw unexpected EOF…
D. Kutach
  • 21
2
votes
1 answer

Protect root-owned script against tampering and run unattended w/ sudoers' NOPASSWD

Using /etc/sudoers I gave a non-root user (anyuser below) permission to sudo-execute a root-owned script (test-script below) with the NOPASSWD: tag set. The script's permission octal value is 0550. Its execution is possible only with one predefined…
Cbhihe
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  • 47
2
votes
1 answer

Krusader/dolphin safe to use for sftp without sha256?

I always use Krusader for (s)ftp. The dual pane is a sheer delight, better feel then Nautulis/Files. Version 2.4.0-beta3 Ubuntu 14.04 LTS Recently I got error messages connecting on some updated servers (sftp://user@xxxx): no match for method mac…
Janghou
  • 6,035
1
vote
2 answers

Can not get correct sha256sum hash for Kubuntu 15.10 DVD

I have downloaded the .iso file for Kubuntu-15.10.iso from the official site. I successfully verified the correct sha256sum hash of 9e5eb424eabfd9b2d193d8c34eca7b48ad944b90c0de0bdcbb638563c14c4d2b I am having trouble hashing the DVD though. When I…
Norman Bird
  • 318
1
vote
1 answer

Unable to verify 20.04.03 download

I am trying to follow this guide here: https://ubuntu.com/tutorials/how-to-verify-ubuntu#1-overview I have downloaded the ISO file and I have the following files in my Downloads directory: SHA256SUMS SHA256SUMS.gpg ubuntu-20.04.3-desktop-amd64.iso I…
Scooby-2
  • 548
1
vote
1 answer

Bad signature on verifying the 18.04.5 sha256 checksum

I was following the "How to verify your Ubuntu download" tutorial to verify the ubuntu-18.04.5-desktop-amd64.iso download. After the following command gpg --keyid-format long --verify SHA256SUMS.gpg SHA256SUMS I receive the following message: gpg:…
Ambroz
  • 21
1
vote
1 answer

How to find a file from the hash?

How do I find the file from given Hash value in Linux? Please note that I don't want to find the hash value of a file, I need the opposite of that.
Sharaf Alzahrani
  • 19
  • 1
  • 2
1
vote
2 answers

Uniquely identify a debian package

I see three checksums in a .deb package: md5sum sha1 sha256 Why do we need 3 checksums? Can we use any one of these to uniquely identify a Debian package?
alok aggarwal
  • 23
1
vote
1 answer

sha256sum: 'filename': No such file or directory

The command sha256sum correctly calculates checksum indicated in .sha256 file: user@myHostname:~/Desktop/RT_N16/Merlin_JohnsFork$ sha256sum RT-N16_3.0.0.4_374.43_2-39L3j9527.trx 545927719c46e359a0db6bf9dcb348f99c0f3d8786725780cb182994c61b19be …
gatorback
  • 6,523
1
2