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Verifying mint 19 iso


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#1 rp88

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Posted 10 November 2018 - 03:59 PM

Just tried downloading mint 19 installer iso, but having some issues with verifying the file, I know that mint has suffered a hijacking of their download pages some years back so recognise how important checking the signature is. The sha256sum checking bit works fine, my sha256 for linuxmint-19-mate-64bit-v2.iso matches the online one of f8164654b7600ced1aa8ef6abee2e56620388b0baa161d7b17699f425223d7c7. can anyone confirm from looking somewhere other than https://ftp.heanet.ie/mirrors/linuxmint.com/stable/19/sha256sum.txt that this is the true sha256 hash for mint 19's v2 MATE iso.

My GPG verification of the sha256 sums file had trouble, I got this:

gpg --keyserver keyserver.ubuntu.com --recv-key A25BAE09
gpg: requesting key A25BAE09 from hkp server keyserver.ubuntu.com
gpg: key A25BAE09: public key "Totally Legit Signing Key " imported
gpg: key A25BAE09: "Linux Mint ISO Signing Key " not changed
gpg: Total number processed: 2
gpg: imported: 1 (RSA: 1)
gpg: unchanged: 1

That "totally legit signing key" sounds pretty odd. The other options that mint's website said I could run in terminal to check the signature were as follows:

gpg --list-key --with-fingerprint A25BAE09
pub 4096R/A25BAE09 2016-06-07
Key fingerprint = 27DE B156 44C6 B3CF 3BD7 D291 300F 846B A25B AE09
uid Linux Mint ISO Signing Key

pub 1024R/A25BAE09 2014-01-26
Key fingerprint = 1828 C98D 1C52 E20C 95DF B632 6ABA 455A A25B AE09
uid Totally Legit Signing Key



and

gpg --keyserver keyserver.ubuntu.com --recv-key "27DE B156 44C6 B3CF 3BD7 D291 300F 846B A25B AE09"
gpg: directory `/home//.gnupg' created
gpg: new configuration file `/home//.gnupg/gpg.conf' created
gpg: WARNING: options in `/home//.gnupg/gpg.conf' are not yet active during this run
gpg: keyring `/home//.gnupg/secring.gpg' created
gpg: keyring `/home//.gnupg/pubring.gpg' created
gpg: requesting key A25BAE09 from hkp server keyserver.ubuntu.com
gpg: /home//.gnupg/trustdb.gpg: trustdb created
gpg: key A25BAE09: public key "Linux Mint ISO Signing Key " imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)

Have I got an untampered mint iso file here? Thanks.

Edited by rp88, 10 November 2018 - 03:59 PM.

Back on this site, for a while anyway, been so busy the last year.

My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB

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#2 SuperSapien64

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Posted 10 November 2018 - 04:24 PM

Have you tried GTK Hash? Or if your on Windows or Mac I would suggest looking here: https://alternativeto.net/software/gtkhash/



#3 66Batmobile

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Posted 10 November 2018 - 04:32 PM

I found this thread on the official Mint site:

https://forums.linuxmint.com/viewtopic.php?f=46&t=281103&p=1549671&hilit=sha256#p1549671

 

which gave this link:

http://mirrors.evowise.com/linuxmint/stable/19/

 

There's a link 2nd from the bottom of the list on that page for sha256sum.txt which shows the checksums for all the Mint 19 versions/yours does appear to match.

 

I'm ultra paranoid :blink: about recommending links, so please proceed with caution on the second one if you're on a Windoze machine.

 

Good luck :thumbup2:


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#4 pcpunk

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Posted 11 November 2018 - 10:27 AM

I've never checked a GPG Signature, I think mint has their security pretty tight now.  I usually check the 256 hash for corruption and less for if the iso has been tampered with.

 

By the way, what is "-v2" is that 19.1"  Like usual Mint's documentation is not so good, but better than it used to be.


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