Is it possible to mirror the Ubuntu 16.04/16.10 boot or system disk, for example using mdadm? The only example I've seen online is for an older version of Debian, and is 3 pages long with dozens of instructions. Such a fundamental system administration task should have very explicit and complete documentation, and should be simple and straight forward to accomplish, and yet there are no docs to follow! Why? Just as a footnote, another popular OS allows this operation at installation. And post-install, the zfs procedures for doing it are basically 3 instructions.
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Yeah, there's no problem at all with mirroring the Ubuntu install disk.
Some quick google-fu brings up an Arch Wiki article with rather explicit instructions for how to set up RAID 1. However, the caveat being these instructions are written for Arch, but the procedure is still generally the same.
Furthermore, instructions written specifically for Ubuntu (14.04 in this case) are also available on this very site! The procedure using mdadm is really the same no matter what guide you follow.
