I am also facing same issue... but #24 fix that problem. But this is workaround.
In my case i tried to install system with preseed, and i tried #24 run as late_command. But it doesn't work.
d-i preseed/late_command string in-target cp -rf /target/usr/share/grub/*.pf2 /target/boot/grub; in-target update-grub;
any idea about this.
I am also facing same issue... but #24 fix that problem. But this is workaround.
In my case i tried to install system with preseed, and i tried #24 run as late_command. But it doesn't work.
d-i preseed/ late_command string in-target cp -rf /target/ usr/share/ grub/*. pf2 /target/boot/grub; in-target update-grub;
any idea about this.