Questions tagged [sha256]
28 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: Now…
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…
Cbhihe
- 2,809
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
- 6,057
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
Where does Ubuntu provide the ISOs and sha256 sums for old Ubuntu point releases?
Ubuntu provides a download page that claims to provide the ISO and sha256sum of previous point releases, for example https://cdimage.ubuntu.com/kubuntu/releases/24.04.2/ for the previous point release of Kubuntu 24.04 LTS. However, it doesn't work;…
Matthew
- 550
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.
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?