Exercise 1: An Install Order for a Four-OS Layout — Possible Solution
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Proposed order: Windows first, then the Windows-adjacent recovery
partition setup/preservation step, then Fedora, then Debian last.

Explanation:

Per this chapter's own generalized rule -- "install every uncooperative
OS first, Linux/GRUB last" -- Windows goes first because, per
grub1-6's own material, its installer is not cooperative about
detecting other operating systems and will happily overwrite boot
information without asking; installing it first means there's nothing
else on the disk yet for it to accidentally clobber. The recovery
partition should be handled/verified immediately after Windows and
before any Linux installation, specifically because it's described as
something the user wants left untouched -- confirming it survives
Windows's own installer intact, before introducing any further
partitioning changes from Fedora or Debian's own installers, reduces
the risk of a later installer's own partition operations accidentally
disturbing it.

Both Linux distros come last, in the same "last Linux distro
installed becomes authoritative" logic grub1-7 established -- with
Debian specifically going after Fedora so Debian's own GRUB becomes
the final authoritative installation, its own os-prober picking up
Fedora's kernel (via chainload-to-kernel, per grub1-7) and Windows's
own bootloader (via chainload-to-bootloader, per grub1-6) as it scans
the rest of the disk during its own installation.

WHY THIS WORKS AS AN ANSWER
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This applies the chapter's own generalized ordering rule to all four
items specifically (not just the two Linux distros), explicitly
reasoning about the recovery partition's own preservation requirement
as an additional constraint on where it fits in the sequence.