| Description | RockyLinux8 images seems to be UEFI ready in AWS (eg. they have the efibootmgr package installed) but I'm not able to boot the instance as an UEFI.
Possibly the issue is caused by the fact that the boot method for the AMI instance is not set:
[cloudshell-user@ip-10-2-38-115 ~]$ aws ec2 describe-images --region us-east-1 --image-id ami-097104a26f5e1c26a
{
"Images": [
{
"Architecture": "x86_64",
"CreationDate": "2023-06-06T15:25:09.000Z",
"ImageId": "ami-097104a26f5e1c26a",
"ImageLocation": "aws-marketplace/Rocky-8-EC2-Base-8.8-20230518.0.x86_64-d6577ceb-8ea8-4e0e-84c6-f098fc302e82",
:...skipping...
{
"Images": [
{
"Architecture": "x86_64",
"CreationDate": "2023-06-06T15:25:09.000Z",
"ImageId": "ami-097104a26f5e1c26a",
"ImageLocation": "aws-marketplace/Rocky-8-EC2-Base-8.8-20230518.0.x86_64-d6577ceb-8ea8-4e0e-84c6-f098fc302e82",
"ImageType": "machine",
"Public": true,
"OwnerId": "679593333241",
"PlatformDetails": "Linux/UNIX",
"UsageOperation": "RunInstances",
"ProductCodes": [
{
"ProductCodeId": "cotnnspjrsi38lfn8qo4ibnnm",
"ProductCodeType": "marketplace"
}
],
"State": "available",
"BlockDeviceMappings": [
{
"DeviceName": "/dev/sda1",
"Ebs": {
"DeleteOnTermination": true,
"SnapshotId": "snap-01e9e7f8f03c4af12",
"VolumeSize": 10,
"VolumeType": "gp2",
"Encrypted": false
}
}
],
"Description": "Rocky-8-EC2-Base-8.8-20230518.0.x86_64",
"EnaSupport": true,
"Hypervisor": "xen",
"ImageOwnerAlias": "aws-marketplace",
"Name": "Rocky-8-EC2-Base-8.8-20230518.0.x86_64-d6577ceb-8ea8-4e0e-84c6-f098fc302e82",
"RootDeviceName": "/dev/sda1",
"RootDeviceType": "ebs",
"VirtualizationType": "hvm",
"DeprecationTime": "2025-06-06T15:25:09.000Z"
}
]
}
There is missing "BootMode". Can you please add it to make the rocky UEFI ready? Set the BootMode to "uefi-preferred".
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/launch-instance-boot-mode.html#UEFI-supported-types
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ami-boot-mode.html
https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ami-boot.html
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