[GTALUG] war story: snag in updating old Fedora systems

[D. Hugh Redelmeier]

| From: D. Hugh Redelmeier via talk <talk at gtalug.org>

| If a Fedora installation dates back long enough, a directory with a name
| 	/boot/efi/$(cat /etc/machine-id)
| might exist.

"long enough" seems to be Fedora 27, which is 13 releases ago, or 6.5 
years.  I have a lot of these systems.

I'm only discovering now that several of these have quietly failed kernel 
updates.  The kernel goes the wrong place and cannot be booted (but an old 
kernel will boot).