rootfs: Support building Ubuntu rootfs #104
Merged
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When building rootfs, we install
busybox
.In Ubuntu, this is hosted under the
universe
component: https://packages.ubuntu.com/focal/busyboxWe can specify which component to use with debootstrap. While Debian does not have a universe component, it handles it just fine so we do not need to special case Debian vs Ubuntu.
Test Plan:
Successfully built rootfs for focal and bullseye: