I used a Ubuntu server to run a single node K8s cluster, as I was trying to reset the cluster and removed the k8s related packages I started running into Segmentation fault (core dumped). Now even if I simply run apt-get update I can the same error along with some other errors. I researched on this and tried multiple solutions but none of them has worked. can someone help?
root@master-node:~# apt-get update
Hit:1 http://us.archive.ubuntu.com/ubuntu focal InRelease
Hit:3 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease
Hit:5 http://us.archive.ubuntu.com/ubuntu focal-security InRelease
Hit:2 https://packages.cloud.google.com/apt kubernetes-xenial InRelease
Get:6 https://esm.ubuntu.com/apps/ubuntu focal-apps-security InRelease [7556 B]
Get:7 https://esm.ubuntu.com/apps/ubuntu focal-apps-updates InRelease [7459 B]
Fetched 15.0 kB in 1s (17.8 kB/s)
Segmentation fault (core dumped)
Reading package lists... Done
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/lib/command-not-found/ -a -e /usr/lib/cnf-update-db; then /usr/lib/cnf-update-db > /dev/null; fi'
E: Sub-process returned an error code
Ubuntu Version:
root@master-node:~# cat /etc/os-release
NAME="Ubuntu"
VERSION="20.04.5 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.5 LTS"
VERSION_ID="20.04"
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=focal
UBUNTU_CODENAME=focal
