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Hi Len,

I have not been able to successfully boot a unikernel-based AMI on EC2

Have you tried using the EC2 AMI command line tools? As in
https://github.com/mirage/mirage/blob/master/scripts/ec2.sh

Alternatively I have been working on OCaml bindings EC2. Apparently (besides myself) two people have had success with them.

If you try them out please let me know how it goes.

They are at https://github.com/moonlightdrive/ocaml-ec2

I think that using a Linux AMI to bootstrap an instance might be a practical
alternative to minting an AMI for each update.

Why is this?

Regards,
Jyotsna

On Tue, Aug 19, 2014 at 7:35 AM, Len Maxwell <len@xxxxxxxx> wrote:

Hello,

I have not been able to successfully boot a unikernel-based AMI on EC2
(something I will revisit later).Â In the meantime, I found that you
can replace the kernel on a standard Linux instance without much
trouble:

- Build a unikernel, ex. mirage-skeleton/static_website.

- Launch an instance with the "Amazon Linux AMI ... PV" (on us-east-1:
ami-7c807d14 for instance-backed, ami-7c807d14 for EBS-backed).Â This
will select the proper AKI for pvgrub.Â Make sure to set up an SSH
key, and a security group that allows ssh and http.

- Once the instance is up, push the kernel to ec2-user's home directory:
scp mir-www.xen ec2-user@<ip-address>:.

- Log in as ec2-user:
ssh ec2-user@<ip-address>

- Move the kernel to /boot:
sudo mv mir-www.xen /boot

- Edit the grub menu:
sudo vi /boot/grub/menu.lst

- Add the following menu entry, before (or instead of) the "title
Amazon Linux" entry:
title mirage
root (hd0)
kernel /boot/mir-www.xen

- Restart:
sudo shutdown -r now

This should work OK as long as the unikernel uses only memory and
network; the disk is full of Linux cruft.Â It's not ideal, but I think
that using a Linux AMI to bootstrap an instance might be a practical
alternative to minting an AMI for each update.

--
Len

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Re: [MirageOS-devel] Mirage on EC2