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Why does importing the GPG key for the mono repo fail? – CentOS

When following the steps to setup mono on the following site it is failing to import the GPG key for the repo.

https://www.mono-project.com/download/stable/#download-lin-centos

This is happening on CentOS machines running both 6.x and 7.x.

rpm –import “https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF“

error: https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF: key 1 not an armored public key.

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2

Answers


  1. 0

    I used this workaround to then download. See https://github.com/mono/mono/issues/16025

    rpm --import https://download.mono-project.com/repo/xamarin.gpg

    su -c 'curl https://download.mono-project.com/repo/centos7-stable.repo | tee /etc/yum.repos.d/mono-centos7-stable.repo’
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  2. 0

    This appears to be due to a missing newline at the end of the key file. If you open the key with vi and save it, without making any changes (this is one way to ensure there is a newline at the end of the file), the import works.

    curl -v "https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF" -okey
vi key
# don't modify, just save it with ":wq"
rpm --import key

    Another way to add the newline to the end of the file: https://unix.stackexchange.com/a/31955

    sed -i -e '$a' key

    see https://github.com/mono/mono/issues/15955

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