Fail to run command /opt/aws/bin/cfn-init on EC2 instance latest AWS latest Linux 2023 image.

Question

Hello,
I use CloudFormation to deploy LAMP stack with Linux EC2 instance.
The command cfn-init works fine if I use the AMI as described in 
 the instruction link below. https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/deploying.applications.html#deployment-walkthrough-lamp-install

However, if I change the AMI to the AWS Linux latest 2023, it doesn't work.
I found the error message "Error occurred during build: Yum does not have php-mysqli available for installation"
-However, I already install php-mysqli because it show mysqli when i run the command "php -m | grep mysqli"
Why cfn-init doesn't work on the latest AMI AWS Linux latest 2023? 
Please advice.
Regards,
Hung Nguyen.

Answer

Double-check if the package name for mysqli is correct. While you mentioned that you installed php-mysqli, it's possible that the package name might differ on the latest AMI. You can try running yum search mysqli to get a list of available mysqli-related packages and ensure you have the correct one installed as compared to the previous AMI.

Fail to run command /opt/aws/bin/cfn-init on EC2 instance latest AWS latest Linux 2023 image.

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