Team;
I’m trying to install kubeadm on a Ubuntu 16.04 Xenial VM, and I’m following all the steps provided at the Installing kubeadm | Kubernetes ,
After Docker installation when I reach at
I get the following error. and after this error what ever I try to install I get nothing.
root@kubemaster:/home/osboxes# sudo apt-get install -y apt-transport-https curl
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
bridge-utils libcwidget3v5 ubuntu-fan
Use 'sudo apt autoremove' to remove them.
The following additional packages will be installed:
apt apt-utils aptitude aptitude-common debian-archive-keyring gcc-10-base
libapt-pkg6.0 libboost-iostreams1.71.0 libbrotli1 libc-bin libc-dev-bin
libc-l10n libc6 libc6-dbg libc6-dev libcom-err2 libcomerr2 libcrypt-dev
libcrypt1 libcurl4 libcwidget4 libffi7 libgcc-s1 libgcrypt20
libgnutls-openssl27 libgnutls30 libgpg-error-l10n libgpg-error0
libgssapi-krb5-2 libhogweed5 libidn2-0 libk5crypto3 libkrb5-3
libkrb5support0 liblzma5 libncursesw6 libnettle7 libnghttp2-14 libp11-kit0
libpsl5 libseccomp2 libsigc++-2.0-0v5 libssh2-1 libssl1.1 libstdc++6
libtasn1-6 libtinfo6 libunistring2 libxapian30 libzstd1 locales manpages
manpages-dev p11-kit-modules publicsuffix
Suggested packages:
apt-doc apt-xapian-index aptitude-doc-en | aptitude-doc debtags tasksel
glibc-doc libcwidget-dev rng-tools gnutls-bin krb5-doc krb5-user
xapian-tools
The following packages will be REMOVED:
libcurl3 whoopsie
The following NEW packages will be installed:
debian-archive-keyring gcc-10-base libapt-pkg6.0 libboost-iostreams1.71.0
libbrotli1 libc-l10n libcom-err2 libcrypt-dev libcrypt1 libcurl4 libcwidget4
libffi7 libgcc-s1 libgpg-error-l10n libhogweed5 libidn2-0 libncursesw6
libnettle7 libnghttp2-14 libpsl5 libssh2-1 libssl1.1 libtinfo6 libunistring2
libxapian30 libzstd1 publicsuffix
The following packages will be upgraded:
apt apt-transport-https apt-utils aptitude aptitude-common curl libc-bin
libc-dev-bin libc6 libc6-dbg libc6-dev libcomerr2 libgcrypt20
libgnutls-openssl27 libgnutls30 libgpg-error0 libgssapi-krb5-2 libk5crypto3
libkrb5-3 libkrb5support0 liblzma5 libp11-kit0 libseccomp2 libsigc++-2.0-0v5
libstdc++6 libtasn1-6 locales manpages manpages-dev p11-kit-modules
30 upgraded, 27 newly installed, 2 to remove and 1217 not upgraded.
Need to get 43.8 MB of archives.
After this operation, 41.4 MB of additional disk space will be used.
**### WARNING: The following packages cannot be authenticated!**
gcc-10-base libgcc-s1 libc6 libcrypt1 libc-l10n locales libc-bin libc6-dbg
libc-dev-bin manpages-dev manpages libc6-dev libcrypt-dev libgpg-error0
libgcrypt20 libstdc++6 libzstd1 aptitude aptitude-common liblzma5
libboost-iostreams1.71.0 libtinfo6 libncursesw6 libsigc++-2.0-0v5
libcwidget4 libxapian30 debian-archive-keyring libnettle7 libhogweed5
libunistring2 libidn2-0 libffi7 libtasn1-6 p11-kit-modules libp11-kit0
libgnutls-openssl27 libgnutls30 libseccomp2 apt-transport-https apt-utils
libapt-pkg6.0 apt libcom-err2 libcomerr2 libbrotli1 libgssapi-krb5-2
libkrb5-3 libk5crypto3 libkrb5support0 libssl1.1 libnghttp2-14 libpsl5
libssh2-1 libcurl4 curl libgpg-error-l10n publicsuffix
E: There were unauthenticated packages and -y was used without --allow-unauthenticated
root@kubemaster:/home/osboxes# curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
OK
root@kubemaster:/home/osboxes# cat <<EOF | sudo tee /etc/apt/sources.list.d/kubernetes.list
> deb https://apt.kubernetes.io/ kubernetes-xenial main
> EOF
I’m stuck on this for a week now, I roll-backed and created a new VM and still got the same error. This is my first try of doing anything on Ubuntu or Kubernetes, I’m trying to find out a solution for this but I can’t find any on any search engine your kind help is required.