Is there a way to install ubuntu onto a separate drive while running ubuntu? I know I can do it with via CD or USB but I don't have those at my disposal right now.
migrated from serverfault.com Nov 4 '11 at 0:53
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Sure, but AFAIK, there is not fancy wizard. You need to build the partitions and filesystems yourself manually, then you run debootstrap, to do the base install. Add the required kernel packages, and a few other non-base packages, then manually adjust your boot loader configuration.
There are many guides out there that cover the specific details, this procedure is commonly used for building virtual machines, livecds, chroot environments, and so on.