Just a quick post. A lot has already been written about the Tiny Core Linux VM, so I won’t repeat that.
This VM is ideal for testing purposes. For instance you are building environments based on nested ESXi hosts and you want a small VM for testing HA, network connectivity and so on.
In my case, there was only one small problem. Since vSphere 5.1, my hardware does not support running 64 bit VMs on nested ESXi hosts.
The resolution is easy, in fact this version of Tiny Core Linux is 32-bit. So after importing the .OVA, just edit the configuration. On the Options tab, change the Guest OS from “Other Linux (64-bit)” to “Other Linux (32-bit)”. That’s all.