FreeBSD 15.0-STABLE (recent 20260402) When installing using pxeboot, if "Packages" is selected, the install process emits (via dialog box): Installation of base system failed An installation step has been aborted. Would you like to restart the installation or exit the installer? If "Traditional" is selected, everything completes as expected. This error is also present with 15.0-RELEASE and 16.0-CURRENT If bsdinstall is via memstick.img or ISO image, no error is exhibited. I am currently circumventing this problem with Traditional+pkgbasify. This problem is identical whether running on a VM (KVM) or on bare metal.
As it turns out, the "Traditional" path doesn't actually work out-of-the-box. At line 171 in bsdinstall/auto I had to insert: export BSDINSTALL_CONFIGCURRENT="YES" or resolv.conf (/tmp/bsdinstall_etc/resolv.conf) is not updated.