suggestion: rescue boot extension

[Jon Masters]

Folks,

There are various projects implementing LiveCD, rescue, or snapshotted
updates. I would like to propose a feature in which some of the
rescue/LiveCD bits are (optionally) installed to a spare volume during
install such that there's always a rescue/Live boot option that can boot
up to a recovery desktop without needing to grab media, etc.

Modern disks are large and cheap (even some SSDs). I can't see a
downside and it helps with all manner of botched updates. Snapshots help
aswell, but there are many times where you just want something more than
a single user boot to fix some breakage.

Jon.