=== enuentry 'New Install' { insmod part_msdos ismod et2 st root='(hd0,msdos1)' echo 'Loading Linux New Install ...' linux /boot/newinstall/vmlinuz echo 'Loading initial ramdisk ...' initrd /boot/newinstall/initrd.gz } ===
Checked this with grub-script-check (GRUB) 2.06-3~deb10u3 and grub-script-check (GRUB) 2.06-3~deb11u5