I manage some EC2 instances running Amazon Linux (not sure what version), which need security patches.
A lot of software was patched well, but we have stuck on the kernel upgrade. We are unable to use the latest kernel version as we preferred. What have we done?
- Get the latest kernel version from the Amazon repository by executing
yum update. The system reports that we have got the newest kernel version as we expected and nothing's to be updated anymore.
- After we got the latest kernel version, we restarted EC2 by clicking reboot on the EC2 console. After EC2s was restarted, we have checked the EC2's kernel version with the command
uname -r. It reports that we still use the same kernel version, not the latest kernel version as we expect.
What is the point that we have missed? Please help.