Fix “Error: rpmdb open failed” on CentOS or Amazon Linux 2

Yesterday, I have started to test some services on running Amazon Linux 2 powered by Amazon Web Services cloud. For some reason, my package manager yum is broken and when I started to update my yum database, I’ve got an error about rpmdb open failed. You can see my error below. If you are running on Centos7 or another Linux […]

Error: No space left on the device when starting/stopping services only

I’m using Amazon SSM Agent for connecting to EC2 instance via securely. Amazon SSM Agent is also able to connect to the EC2 instance console via web console. So, this is my preferred way. About a few days ago, when I tried to connect to EC2 via Amazon SSM Agent it doesn’t respond and after that, I decided to […]