XPost: uk.comp.sys.mac
On 11-Aug-2021 at 3:17:54AM PDT, "Ed Norton" <
norton@nowhere.com> wrote:
Is there any simple way to replace the OS version on the recovery
partition? I have obtained a Mac Mini 2012 that apparently shipped
with Mountain Lion and no matter what version of the OS I update to the recovery partition remains Mountain Lion.
I want to do an clean, internet restore to at least Mojave. On another machine running High Sierra I notice that the recovery partition offers
3 options for restoring over the internet: restore latest compatible
system, restore last loaded system, and restore the system originally shipped. The Mountain Lion version only offers to restore Mountain
Lion over the net.
I am aware that I can download updates from the Apple Store, use USB
sticks, etc, etc. but it's much simpler to just do an internet restore
on a reformatted disk.
When I upgraded from 10.10 to 10.13, I did a new install on a new wiped drive. Then I migrated from my old drive to the newly installed 10.13 system. That gave
me a APFS system with a 10.13 recovery volume.
AFAIK, just upgrading a 10.8 system to 10.13 or higher won't upgrade the filesystem
to APFS on a SSD. Of the three backup solutions I use, Carbon Copy Cloner
won't
upgrade the recovery volume unless you're cloning the old system to a new drive.
Then it asks for the "Install MacOS" app to extract the recovery partition on the new
drive. SuperDuper! doesn't do this but it's good for cloning existing drives
to backups
for my daily.
So to do your install, on a blank drive, install a new copy of 10.11 and do a migration
from your old drive. That should give you a current recovery volume and a APFS system drive.
--
DeeDee, don't press that button! DeeDee! NO! Dee...
--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)