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Linux Mint 17.3 MATE, can't authenticate updates


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#1 rp88

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Posted 24 February 2018 - 06:09 PM

I've recently tried to update my install of linux mint MATE 17.3 but have had a warning about being unable to authenticate updates, hence it can't be proven that they are from a trusted source. See the screenshot for the error and a list of the updates I was trying to apply at the time. I have not installed these updates and assume I should not do so until I can authenticate them. I had tried checking for updates a week or so ago, but got this error then, I didn't install them then and resolved to wait a while and see if, when I tried to update later, authentication would work, now is later and it hasn't started working again. Please can anyone advise on how to get authentication working again so I can safely update linux.

 

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Attached File  linux_updates.jpg   68.07KB   0 downloads


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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 NickAu

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Posted 24 February 2018 - 06:14 PM

This means that for some reason apt cant verify the gpg signatures, This usually happens if there is a glitch in your network connection to the package server, or if for some reason the download did not go correctly.


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#3 rp88

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Posted 24 February 2018 - 08:22 PM

I don't think the download had begun, the screen you see in the attachment flashed up fast enough that no file of meaningful size could have reached my PC between me clicking to update and it showing. What steps do I take to bypass any network glitch or use another package server? Right now I'm just using the default one I think, and if there are any network issues I would guess they are at the server not at me (but how can I check to find this out?) because my connection seems to work fine.

Edited by rp88, 24 February 2018 - 08:23 PM.

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

#4 rp88

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Posted 25 February 2018 - 01:19 PM

I think I've fixed it. I went into the package manager and "custom filters" then highlighted the broken stuff, nothing was shown as broken. I reloaded the list in package manager let it do it's stuff then closed it. I then went back to update manager and tried to update. The updates are in progress now and so far there hasn't been any warning about authentication problems.
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My systems:2 laptops, intel i3 processors, windows 8.1 installed on the hard-drive and linux mint 17.3 MATE installed to USB

#5 rp88

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Posted 26 March 2018 - 11:57 AM

Just got this same error again, same method seemed to fix it.
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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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