apt-get repository signatures were invalid

Question

I ran sudo apt-get update then got the following error:

GPG error: http://archive.ubuntu.com trusty Release: 
           The following signatures were invalid: BADSIG 16126D3A3E5C1192 
           Ubuntu Extras Archive Automatic Signing Key <ftpmaster@ubuntu.com>...

can any one help please

Possible duplicate of What is the easiest way to resolve apt-get BADSIG GPG errors? — karel, Aug 04 '18 at 17:03

Eska · Answer 1 · 2016-04-02T13:27:43.303

2

You can fix this issue by adding missing signing key:

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 16126D3A3E5C1192
sudo apt-get update

Please note, do not add any keys from the sources You don't trust. You are adding any keys for Your own risk.

To fix Your issue with the apt-get update please do the following:

sudo rm -rf /var/lib/apt/lists
sudo apt-get update --fix-missing

edited Apr 02 '16 at 13:27

answered Apr 02 '16 at 11:51

Eska

495
2
11

GPG error: http://archive.ubuntu.com trusty Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key ftpmaster@ubuntu.com after doing the above i got this error – Prabal Kar Apr 02 '16 at 12:06
Import another key using same command i gave You. Replace 16126D3A3E5C1192 with Your new badsig key, as You provided it will be 40976EAF437D05B5 – Eska Apr 02 '16 at 12:09
Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release Unable to find expected entry 'universe/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file) – Prabal Kar Apr 02 '16 at 12:21
Please paste sudo cat /etc/apt/sources.list in Your Original Post. – Eska Apr 02 '16 at 12:31
its saying no such file in the directory – Prabal Kar Apr 02 '16 at 12:44
Check if You typed that command correct along with the file directory. – Eska Apr 02 '16 at 12:46
by original post you meant what ? – Prabal Kar Apr 02 '16 at 12:50
Place where You asked Your main question, edit it and add there result of the cat – Eska Apr 02 '16 at 12:51
deb http://archive.ubuntu.com/ubuntu trusty main universe restricted multiverse this is the result – Prabal Kar Apr 02 '16 at 12:55
edit Your sources.list and add http:// in front of archive.ubuntu.com/ubuntu – Eska Apr 02 '16 at 13:04
I edited my answer, please check. – Eska Apr 02 '16 at 13:10
http:// is allready added – Prabal Kar Apr 02 '16 at 13:12
if its added, do the sudo apt-get update if that doesn't work read my edit of the answer (main post) – Eska Apr 02 '16 at 13:16
its not working .... – Prabal Kar Apr 02 '16 at 13:22
did You made rm -rf /var/lib/apt/lists and sudo apt-get update --fix-missing and after that sudo apt-get update ? – Eska Apr 02 '16 at 13:23
yes when i ran rm -rf / var/lib/apt/lists it said it can not remove files failed to remove – Prabal Kar Apr 02 '16 at 13:25
sudo rm -rf /var/lib/apt/lists – Eska Apr 02 '16 at 13:27
same error every time Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release Unable to find expected entry 'universe/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file) – Prabal Kar Apr 02 '16 at 13:29
As You provided, Your sources.list contain only one entry, right? – Eska Apr 02 '16 at 13:30
I dont know I am new to linux – Prabal Kar Apr 02 '16 at 13:31
deb http://archive.ubuntu.com/ubuntu trusty main universe restricted multiverse - You don't hace anything else in Your sources.list ? – Eska Apr 02 '16 at 13:32
no i don't have – Prabal Kar Apr 02 '16 at 13:35
Generate new sources.list for Your Ubuntu: https://repogen.simplylinux.ch/ – Eska Apr 02 '16 at 13:36
ok let me do it – Prabal Kar Apr 02 '16 at 13:36
Is there a more powerful way of just resetting everything please? I've tried both your instructions and I still get this: GPG error: http://archive.ubuntu.com trusty Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key ftpmaster@ubuntu.com – Richard May 16 '16 at 09:46

apt-get repository signatures were invalid

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