The following packages have unmet dependencies:
frr : Depends: (>= 0.11) but it is not installable
Depends: libreadline7 (>= 6.0) but it is not installable
Recommends: frr-pythontools but it is not going to be installed
E: Unable to correct problems, you have held broken packages.
root@ubuntu:~# uname -a
Linux ubuntu 5.3.0-18-generic #19-Ubuntu SMP Tue Oct 8 20:14:34 UTC 2019 aarch64 aarch64 aarch64 GNU/Linux
root@ubuntu:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="19.10 (Eoan Ermine)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 19.10"
VERSION_ID="19.10"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=eoan
UBUNTU_CODENAME=eoan
root@ubuntu:~#
