I’d like to understand more about what to do when you need to increase a block device size for a build. I have some examples that work successfully with ubuntu 18, and centos 7 that I use, but it seems like each time I’m in a slightly new scenario the old techniques don’t apply, and that is probably due to a gap in my knowledge of what is required.
Building an AMI with NICE DCV (remote display):
name: DCV-AmazonLinux2-2020-2-9662-NVIDIA-450-89-x86_64
I tried this in my packer template:
launch_block_device_mappings {
device_name = "/dev/sda1"
volume_size = 16
volume_type = "gp2"
delete_on_termination = true
}
But then ssh never became available. I reverted to not doing any customisation, and took a look at the mounts:
[ec2-user@ip-172-31-39-29 ~]$ df -h
Filesystem Size Used Avail Use% Mounted on
devtmpfs 482M 0 482M 0% /dev
tmpfs 492M 0 492M 0% /dev/shm
tmpfs 492M 740K 491M 1% /run
tmpfs 492M 0 492M 0% /sys/fs/cgroup
/dev/xvda1 8.0G 4.4G 3.7G 55% /
tmpfs 99M 8.0K 99M 1% /run/user/42
tmpfs 99M 0 99M 0% /run/user/1000
So I thought I should try this instead (which didn’t work):
launch_block_device_mappings {
device_name = "/dev/xvda1"
volume_size = 20
volume_type = "gp2"
delete_on_termination = true
}
which resulted in these errors:
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Authorizing access to port 22 from [0.0.0.0/0] in the temporary security groups...
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Launching a source AWS instance...
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Adding tags to source instance
amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Adding tag: "Name": "Packer Builder"
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Error launching source instance: InvalidBlockDeviceMapping: Invalid device name /dev/xvda1
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: status code: 400, request id: 2c419989-dd53-48ef-bcb6-6e54e892d152
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: No volumes to clean up, skipping
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Deleting temporary security group...
==> amazon-ebs.amazonlinux2-nicedcv-nvidia-ami: Deleting temporary keypair...
Build 'amazon-ebs.amazonlinux2-nicedcv-nvidia-ami' errored after 1 second 820 milliseconds: Error launching source instance: InvalidBlockDeviceMapping: Invalid device name /dev/xvda1
status code: 400, request id: 2c419989-dd53-48ef-bcb6-6e54e892d152
Would anyone be able to share some pointers on what I’d need to do to increase the volume size in this instance and why?