Version 1 (modified by Ted Faber, 12 years ago) (diff)


Notes from Upgrading to Ubuntu 12.04 from 10.04

The new VMs

Upgraded the VM instance by swapping in an Ubuntu 10.04 image (the pre-upgrade version) and installing a new 12.04 i386 install. Special things I did:

  • Used a hardware type that supports virtualization - pc2133
  • Used tb-allow-external to allow the Ubuntu install to proceed. It expects external connectivity.
    • I added the Ubunutu 10.04 image to the list of images allowed to access external hosts temporarily to do this
  • The image file itself was created using
$ qemu-img create -f qcow2 /tmp/pangolin.img 10G

To do the install on an X window I needed to log into the DETER node hosting qemu using

$ ssh -Y pc055

Once I had a bootable image, I booted it, logged in, and changed /etc/apt/sources.list to point to scratch instead of the various ubuntu and cannonical sources. After the substitutions there were 2 duplicates that I commented out.

The defaulty /etc/resolve.conf doesn't resolve scratch, so I copied one from the host on which QEMU was running.

After this sudo apt-get update succeeds.

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