On Wed, Dec 7, 2022 at 1:45 PM Konstantin Olchanski <[log in to unmask]> wrote:
> - NFS-Root support. Last I tried, RHEL-8 would not NFS-boot without major effort.

Diskless clients (NFS root) are working fine for me with AlmaLinux
9.1. The main prerequisite is installing the "readonly-root" package.

> - NIS support. ("LDAP need not apply"), scheduled for removal in RHEL, still works just fine in Ubuntu/Debian.

Yes, Red Hat ripped it out in RHEL 9. Very annoying. You can restore
it by installing the nss_nis, ypbind, and yp-utils packages from
Fedora Core 34 or 35 or 36 or 37. The binary RPMs work or you can
rebuild. You will probably also want to rebuild the autofs RPM with
the libnsl2-devel package installed so it will contain
/usr/lib64/autofs/lookup_nis.so.

That does it if you manage your nsswitch.conf by hand. If you want to
go whole hog, you will want to restore the "nis" profile for
authselect. I just copied it from the authselect sources into
/etc/authselect/custom/nis and now "authselect select custom/nis"
works.

Alma has been serving us well so far. Nice to see our choice being
validated by CERN/Fermilab.

 - Pat