[SOLVED] Update Manager Problem

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Cosmic47
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[SOLVED] Update Manager Problem

Post by Cosmic47 » Fri Aug 04, 2017 5:31 pm

Hello! I'm very new to Linux and have run into a few problems concerning the update manager. It was working fine up until I installed an update for Google Chrome last night. Today the update manager icon had a red X on it and I could no longer refresh it without getting error messages. I tried changing the local mirrors but the problem persisted and even got worse to the point that I got a new error saying the cache was corrupted. After a bit of research I managed to fix that problem and I no longer see the red X on the icon, however I still get this error message when I try to refresh it:

W: GPG error: http://dl.google.com/linux/chrome/deb stable Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6494C6D6997C215E
W: The repository 'http://dl.google.com/linux/chrome/deb stable Release' is not signed.

I am running Linux Mint 18.1 Cinnamon 64-bit.

Any help would be greatly appreciated!
Last edited by Cosmic47 on Fri Aug 04, 2017 5:51 pm, edited 1 time in total.

JeremyB
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Re: Update Manager Problem

Post by JeremyB » Fri Aug 04, 2017 5:38 pm

See if the following fixes the issue

Code: Select all

sudo apt-key adv --keyserver ha.pool.sks-keyservers.net --recv-keys 6494C6D6997C215E

Cosmic47
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Re: Update Manager Problem

Post by Cosmic47 » Fri Aug 04, 2017 5:41 pm

It worked! Thank you so much, I appreciate the help. :)

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Pjotr
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Re: [SOLVED] Update Manager Problem

Post by Pjotr » Fri Aug 04, 2017 6:10 pm

This should fix it with a new key from google.com:

Code: Select all

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
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JeremyB
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Re: [SOLVED] Update Manager Problem

Post by JeremyB » Fri Aug 04, 2017 6:25 pm

There are a few ways to fix it. I also posted that info @ viewtopic.php?f=90&t=251133&p=1350670#p1350657

ben2talk
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Re: [SOLVED] Update Manager Problem

Post by ben2talk » Fri Aug 04, 2017 9:52 pm

JeremyB wrote:There are a few ways to fix it. I also posted that info @ viewtopic.php?f=90&t=251133&p=1350670#p1350657
Great job - happened to me also, I usually end up ignoring this stuff until it goes away... Annoying.

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Re: [SOLVED] Update Manager Problem

Post by Oreally » Sat Aug 05, 2017 6:51 am

Pjotr wrote:This should fix it with a new key from google.com:

Code: Select all

wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
this fixed it for me
Thank you!
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3rdtimer
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Re: [SOLVED] Update Manager Problem

Post by 3rdtimer » Sat Aug 05, 2017 2:29 pm

I too had the Google public key error and used the solutions offered here to fix it. Thank you for that!

However….I was receiving 2 errors. The Google public key error above and this one at the same time:

“W: GPG error: http://download.opensuse.org/repositori ... untu_16.04 Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8873E7BF70F1BBEA
W: The repository 'http://download.opensuse.org/repositori ... untu_16.04 Release' is not signed.”

I have tried everything I could think of to abolish the error but no joy yet. I am not a total newbie to LM 18.1 but certainly not as advanced as most of you here. Can someone provide a terminal incantation or other advice to fix this?

Thank you in advance for your assistance.
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JeremyB
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Re: [SOLVED] Update Manager Problem

Post by JeremyB » Sat Aug 05, 2017 2:36 pm

Try

Code: Select all

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8873E7BF70F1BBEA

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3rdtimer
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Re: [SOLVED] Update Manager Problem

Post by 3rdtimer » Sat Aug 05, 2017 4:06 pm

Thank you for your effort JeremyB but the error still comes up.

This was a WAG, but the urls in the error refer to OSMC which Synaptic and the web describe as part and parcel of an open source media center akin to KODI, MythTV and Plex. I loaded all in the recent past in order to get my Hauppauge tuner to work but no joy and...no big deal.

In Synaptic Package Manager I just now un-installed (complete removal) all of the above media packages, refreshed the update manager and still got the same error.

Then it dawned on me. Update manager is querying a listed “additional repository”..! :idea: I did the following: Update Manager>Edit>Software Sources>Additional repositories> ..unchecked "Opensuse">..closed the dialog box and hit refresh in Update Manager..Problem Solved. No error.

Thank you for your time and effort.
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Chrispy_Cracker
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Re: [SOLVED] Update Manager Problem

Post by Chrispy_Cracker » Sun Aug 06, 2017 12:02 am

I am far from being an expert but I was able to fix this exact same problem by using the KEY shown in the error message.
How I did it was try to do an update and when the error occurred it would say something like Public KEY not found xxxxxxxxxxxxxxxx <-- Copy 16 digit key from here
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys xxxxxxxxxxxxxxxx <-- Paste 16 digit key here

I ran it in Terminal and all is now good with the world!
Enjoy
Chrispy

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