Hate is a strong word. Perhaps at times indifferent.

Monocultures are always bad.

Do you see in the /var/log/emerge.log on all of the boxes?

Torvalds has declared this release “painful”

"Don't get me wrong - things don't look bad, but I hate it when I find issues during the merge window that I feel should have been noticed before the code made it to me, and it happened a few times this release,"

"So 4.14 is getting some very core new ...

Your 4.14.1 kernel is stable? On what ARCH?

On an x86 complied with gcc 7 4.14.2-3 either panic on boot or within a day. ppc won't even compile.

You monitored the packet counts while making both http and https connections?

At a minimum

iptables -A INPUT -i lo -j ACCEPT
iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
iptables -P INPUT DROP

The box can talk to itself, transmissions you initiate and related ones are allowed, and everything else is dropped.

There is no harm in doing this ...

Here is a 4.9.11 config from a G3.

If grub is installed in Debian, it automatically runs when a new kernel or initrd.img is installed.
In some cases is it is preferable to have only one distro managing grub.

Perhaps I misunderstand you.
# emerge -UDNav world

These are the packages that would be merged, in order:

Calculating dependencies... done!
...

Total: 1 package (1 reinstall), Size of downloads: 0 KiB

# emerge -UDNavu world

These are the packages that would be merged, in order:

Calculating ...

Booting gentoo-sources-4.9.34. Did not use the Debian config.
Can bring up twm which would not start until xterm was installed.
Now to decide which window manager to use and whether to move from ppc to ~ppc.

There is a 5 year old bug report
https://debbugs.gnu.org/cgi/bugreport.cgi?bug=11430
The workaround mentioned there puts this in your init file:
(custom-set-variables
;; custom-set-variables was added by Custom.
;; If you edit it by hand, you could mess it up, so be careful.
;; Your init file ...

Display has been the problem. The iBook languished because the fonts were distorted with Debian Jessie.

With Sid lightdm was a black screen with the mouse becoming an insertion point where the username and password are enterred.
The Emacs GUI has black where there is no text in the splash screen ...

Trying to resurrect and even older iBook as dual Debian and Gentoo. The GPU is 3D RAGE Mobility L.

Using the netinst iso from
http://jenkins.kfreebsd.eu/jenkins/view/cd/job/debian-cd_sid_powerpc/ws/build/
upgrading the kernel and installing LXDE and switching from the default lightdm to lxdm can ...

De nada.

Have you
eselect postgresql set 10
so that pg_ctl is linked to /usr/lib/postgresql-10/bin/pg_ctl?
What happens if you run
/usr/lib/postgresql-10/bin/postgres -D /etc/postgresql-10 --data-directory=/var/lib/postgresql/10/data --unix-socket-directories=/run/postgresql
as postgres? That is what the ...

When it is successfully started on my box, messages has like this:
Jul 25 06:46:45 gentoo su[10401]: Successful su for postgres by root
Jul 25 06:46:45 gentoo su[10401]: + /dev/pts/0 root:postgres
Jul 25 06:46:45 gentoo su[10401]: pam_unix(su:session): session opened for user postgres by limn(uid=0 ...

Maybe there is some problem with your postgres user.
See if su logged anything to /var/log/messages.

I meant how is use.stable.mask being pulled in, if in fact that is what is happening.
I do not see this on masking my boxes, and if I do that is what I would look into.

How did it get masked in the first place?

Sounds like a bug to me. Did not have this problem going from 9.5 to 9.6.

What does show for RUBY_TARGETS?

Something in your profile? There is this in /usr/portage/profiles/base/use.stable.mask

Why did you want to recompile yaboot?
There are utilities to handle IMPORTANT: 2 config files in '/etc/portage' need updating.
I didn't realize yaboot cannot boot from ext4
I do not know what that means. Yaboot boots to a boot partition, and it can be ext4.
I still have the 'filesystem is ...