Public keys not available, can't use apt-update

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I'm getting a lot of errors like this:



W: An error occurred during the signature verification. 
The repository is not updated and the previous index files will be used. 
GPG error: http://ftp.uk.debian.org/debian stretch-updates 
InRelease: The following signatures couldn't be verified because the public key 
is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010


Tried to add the keys manually using:



sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553


and it says imported/processed but I still get the same errors.




debian terminal




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  • 2




    You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
    – JdeBP
    Oct 20 '17 at 6:03














up vote
0
down vote

favorite












I'm getting a lot of errors like this:



W: An error occurred during the signature verification. 
The repository is not updated and the previous index files will be used. 
GPG error: http://ftp.uk.debian.org/debian stretch-updates 
InRelease: The following signatures couldn't be verified because the public key 
is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010


Tried to add the keys manually using:



sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553


and it says imported/processed but I still get the same errors.




debian terminal




share|improve this question


















  • 2




    You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
    – JdeBP
    Oct 20 '17 at 6:03












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I'm getting a lot of errors like this:



W: An error occurred during the signature verification. 
The repository is not updated and the previous index files will be used. 
GPG error: http://ftp.uk.debian.org/debian stretch-updates 
InRelease: The following signatures couldn't be verified because the public key 
is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010


Tried to add the keys manually using:



sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553


and it says imported/processed but I still get the same errors.




debian terminal




share|improve this question














I'm getting a lot of errors like this:



W: An error occurred during the signature verification. 
The repository is not updated and the previous index files will be used. 
GPG error: http://ftp.uk.debian.org/debian stretch-updates 
InRelease: The following signatures couldn't be verified because the public key 
is not available: NO_PUBKEY 8B48AD6246925553 NO_PUBKEY 7638D0442B90D010


Tried to add the keys manually using:



sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 8B48AD6246925553


and it says imported/processed but I still get the same errors.





debian terminal





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share|improve this question




share|improve this question








edited Oct 20 '17 at 7:44









agc

4,1501935




4,1501935










asked Oct 20 '17 at 5:58









Lom Dass

1




1







  • 2




    You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
    – JdeBP
    Oct 20 '17 at 6:03












  • 2




    You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
    – JdeBP
    Oct 20 '17 at 6:03







2




2




You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
– JdeBP
Oct 20 '17 at 6:03




You should clarify in the question which operating system it is that you are actually using, Ubuntu or Debian.
– JdeBP
Oct 20 '17 at 6:03










1 Answer
1






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I suggest these: 



sudo apt-get clean
sudo mv /var/lib/apt/lists /tmp
sudo mkdir -p /var/lib/apt/lists/partial
sudo apt-get clean
sudo apt-get update





share|improve this answer




















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    1 Answer
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    active

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    up vote
    0
    down vote













    I suggest these: 



    sudo apt-get clean
    sudo mv /var/lib/apt/lists /tmp
    sudo mkdir -p /var/lib/apt/lists/partial
    sudo apt-get clean
    sudo apt-get update





    share|improve this answer
























      up vote
      0
      down vote













      I suggest these: 



      sudo apt-get clean
      sudo mv /var/lib/apt/lists /tmp
      sudo mkdir -p /var/lib/apt/lists/partial
      sudo apt-get clean
      sudo apt-get update





      share|improve this answer






















        up vote
        0
        down vote










        up vote
        0
        down vote









        I suggest these: 



        sudo apt-get clean
        sudo mv /var/lib/apt/lists /tmp
        sudo mkdir -p /var/lib/apt/lists/partial
        sudo apt-get clean
        sudo apt-get update





        share|improve this answer












        I suggest these: 



        sudo apt-get clean
        sudo mv /var/lib/apt/lists /tmp
        sudo mkdir -p /var/lib/apt/lists/partial
        sudo apt-get clean
        sudo apt-get update






        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Oct 20 '17 at 9:29









        F.sb

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