Architect install fails on /mnt/etc/mkinitcpio.conf sed
I follow the standard fare, boot manjaro architect iso inside a VM, run setup. default partitioning. no LVM, no LUKS, get my mirrors list sorted, and go to base install. Base install shows an error but is too quick for me to see. Go back to reinstall base and it complains that sed mkinitcpio.conf is failing because the file doesn't exist.
Ditto for /mnt/etc/pacman-mirrors
I can just cp the pacman-mirrors from the live CD, but when I cp mkinitcpio I get an unhelpful error:
sed: -e expression #1, char 0: no previous regular expression