On Oct 31, 2021, at 17:53, Artemio González López wrote:
> 1. Is there an easy check which ones of my previously installed ports weren’t
> installed?
You have a text file listing the ports you previously installed on macOS 11.
You have the instructions for how you created that file. You can use those same
instructions, modifying the output filename, to create a new file listing the
ports that are now installed on macOS 12.
Then you can compare the two files in your favorite editor or file comparison
program.
> 2. Why was port complaining that the macOS 12 SDK wasn’t installed, if I did
> install the 13.1 command line tools manually (from a package)?
Since you mentioned qt5, it has a bug which causes this message to appear.
https://trac.macports.org/ticket/61736
> 3. What should I do to restore my previous installation (i.e., should I start
> from scratch or could I just install the ports that weren’t installed in the
> first run, provided I find out which ones were they)?
If you mean downgrading back to macOS 11, that's not something Apple makes easy
to do. I suppose you would erase the drive, reinstall macOS 11, then restore
your latest Time Machine backup from before upgrading to macOS 12, losing any
changes you had made after upgrading to macOS 12. Restoring a Time Machine
backup also messes up the home directories of the macports user and of any user
accounts created by ports you had installed, which must be manually fixed.
If you mean keeping your macOS 11 set of ports while staying on macOS 12, you
could restore just /opt/local and /Applications/MacPorts and any MacPorts files
from /Library/LaunchDaemons from your Time Machine backup. You can't use
MacPorts to upgrade your ports then (until you reinstall MacPorts for macOS 12)
but probably most of the ports compiled for macOS 11 will work as is on macOS
12 if you don't touch them. You can then wait a month or two and then check if
the issues you had encountered have been fixed (Cc yourself on the Trac tickets
to be notified) and then try the migration process again.
If you mean getting the ports that aren't building on macOS 12 building on
macOS 12, we'd all love to know. If you can provide solutions to those issues,
please do.
