Cloud Questions

What is a Cloud ?

Wikipedia defines cloud computing as "Internet-based computing, whereby shared resources, software, and information are provided to computers and other devices on demand, like the electricity grid"

For a discussion of what cloud computing means, and why everything seems to be going that way, check out Matt Zimmerman's On Cloud blog post

Ubuntu Cloud Questions

What is Ubuntu Cloud?

Ubuntu Cloud the family of products that offer cloud functionality in Ubuntu. It includes:

Ubuntu over EC2 Questions

Why can't I upgrade the image's kernel in an EC2 AMI?

In 10.04, the -server kernel that is also installed is not usable on EC2. The kernel is present there to aid in moving to Ubuntu Enterprise Cloud (the predecessor to Ubuntu Cloud Infrastructure) if you so desired. Ubuntu Enterprise Cloud uses kvm and full virtualization rather than xen/paravirt. On 10.04 and EC2, you could safely remove that kernel if you wanted.

On 10.10 (maverick), you will both be able to boot the -virtual kernel, and will by default. Maverick images use the pv-grub loader recently released by Amazon, and use a pv-ops kernel, so one kernel can run on xen or on kvm (or actually "bare metal").

cloud/FAQ (last edited 2011-09-13 21:04:10 by mx)