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I download a UEC style Ubuntu Precise image from http://cloud-images.ubuntu.com/ that I want to use in an OpenStack cloud, but I want to make some modifications to it before booting the VM.

Installing packages is fairly straight forward. I first mount precise-server-cloudimg-amd64.img and use apt-get after chroot-ing to the mounted folder. However, I also want to remove the default linux-image-virtual kernel (and precise-server-cloudimg-amd64-vmlinuz-virtual) and install and use the linux-image-generic one.

How can I achieve this in a chroot environment that I have mounted the cloud image?

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