As beginner I thought I could just go along and start using it once the VM is up and running from the downloaded ISO file. However, I found out every time when I restart the VM, all the changes I made (e.g. packages I downloaded) were wipped out. This is becuase the OS is not installed on the disk and VM has only the ISO as the source to boot from.
- download the installation package
tce-load -wi tc-install