This was due to debian-installer-utils and base-installer getting out of sync, so grub-pc was being installed too early. I've uploaded a merge of base-installer 1.103, which should clear this up.
This was due to debian- installer- utils and base-installer getting out of sync, so grub-pc was being installed too early. I've uploaded a merge of base-installer 1.103, which should clear this up.