install/60047: sysinst: NetBSD/amd64 ISO missing base32 when selecting "Installation without X11"

["mp%petermann-it.de@localhost via gnats" <gnats-admin%NetBSD.org@localhost>]

>Number:         60047
>Category:       install
>Synopsis:       sysinst: NetBSD/amd64 ISO missing base32 when selecting "Installation without X11"
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    install-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Mar 01 13:20:00 +0000 2026
>Originator:     Matthias Petermann
>Release:        11.0_RC1
>Organization:
>Environment:
NetBSD-11.0_RC1 (built from netbsd-11 source as of 20260301)
>Description:
When run from amd64 installation ISO, sysinst complains about not existing base32. This could be related to:

"Compatibility libraries (for 32-bit binaries on 64-bit platforms, and 64-bit binaries on MIPS) have been split into new base32/base64, debug32/debug64 sets." from the release notes.


While I fully understand the rationale behind keeping the ISO images small and having base32 excluded on a 64 bit build, the current sysinst behavior will bite a lot users unexpected. I guess the same will apply for the Installation with X11. 
>How-To-Repeat:
- boot install ISO
- select defaults
- in Distribution set main selection: select "Installation without X11"
>Fix:
Probably a specific override in md.h(usr.sbin/sysinst/arch/amd64) ?