System has not been booted with systemd as init system (PID 1)

[faridoddin1]

All packages are up to date.
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://cli-assets.heroku.com/apt ./ InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 536F8F1DE80F6A35
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://cf-cli-debian-repo.s3.amazonaws.com stable InRelease: The following signatures were invalid: EXPKEYSIG 172B5989FCD21EF8 CF CLI Team [email protected]
W: Failed to fetch http://packages.cloudfoundry.org/debian/dists/stable/InRelease The following signatures were invalid: EXPKEYSIG 172B5989FCD21EF8 CF CLI Team [email protected]
W: Failed to fetch https://cli-assets.heroku.com/apt/./InRelease The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 536F8F1DE80F6A35
W: Some index files failed to download. They have been ignored, or old ones used instead.
INFO: Installing required APT packages
Reading package lists... Done
Building dependency tree
Reading state information... Done
diffutils is already the newest version (1:3.6-1).
make is already the newest version (4.1-9.1ubuntu1).
sed is already the newest version (4.4-2).
tar is already the newest version (1.29b-2ubuntu0.4).
erlang-dev is already the newest version (1:25.2.2-2).
erlang-nox is already the newest version (1:25.2.2-2).
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
INFO: Making sure clock synchronization is enabled
System has not been booted with systemd as init system (PID 1). Can't operate.
mtp_install.sh: line 148: [: =: unary operator expected
Failed to create bus connection: No such file or directory