It appears that Amazon EC2 instances always boot to runlevel 4, no matter what runlevel you set as default in your /etc/inittab. I found a very old reference to this fact in forums (see here), which explains *how* it happens (XEN does it) but doesn’t explain *why*. And yes, by passing “4″ as last argument [...]
Entries Tagged as 'virtualization'
EC2 Instances Always Boot to Runlevel 4
June 20th, 2008 · Comments Off
Tags: linux · virtualization
Benefits of Virtualization – Part 2
March 31st, 2008 · Comments Off
Virtualization can also serve as software delivery medium. You know, like floppies, CDs and DVDs. You do sacrifice space and some CPU power, but get a controlled installation environment in exchange. This comes handy if a product you are trying to distribute takes some effort and knowledge to install correctly.
To illustrate this concept, I am [...]
Tags: virtualization
Benefits of Virtualization
March 26th, 2008 · Comments Off
Almost everybody is familiar with better resource utilization as one of the benefits of virtualization. You can reduce the physical footprint (have fewer physical pieces of hardware) and still run the same number of “standalone” servers as before virtualization.
I think however that there is another huge benefit that doesn’t get as much attention – virtualization [...]
Tags: virtualization
