init-install-efi.sh: Update to support installing multiple kernels

We can no longer rely on the kernel having a static name of "vmlinuz".
This means we can't use it as a sentinel value in our sed commands, and
we can't just copy vmlinuz to the boot directory.

Instead, we'll use "root=" as the sentinel value for our sed commands,
and we'll search for common kernel names to copy into our boot
directory.

(From OE-Core rev: 3d67edb695368bfa5917dca2aab6a8dc4c437efc)

Signed-off-by: California Sullivan <california.l.sullivan@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/initrdscripts/files/init-install-efi.sh

@@ -244,10 +244,9 @@ if [ -f /run/media/$1/EFI/BOOT/grub.cfg ]; then
     sed -i "/initrd /d" $GRUBCFG
     # Delete any LABEL= strings
     sed -i "s/ LABEL=[^ ]*/ /" $GRUBCFG
-    # Delete any root= strings
-    sed -i "s/ root=[^ ]*/ /g" $GRUBCFG
-    # Add the root= and other standard boot options
-    sed -i "s@linux /vmlinuz *@linux /vmlinuz root=PARTUUID=$root_part_uuid rw $rootwait quiet @" $GRUBCFG
+    # Replace root= and add additional standard boot options
+    # We use root as a sentinel value, as vmlinuz is no longer guaranteed
+    sed -i "s/ root=[^ ]*/ root=PARTUUID=$root_part_uuid rw $rootwait quiet /g" $GRUBCFG
 fi
 
 if [ -d /run/media/$1/loader ]; then
@@ -269,7 +268,13 @@ fi
 
 umount /tgt_root
 
-cp /run/media/$1/vmlinuz /boot
+# Copy kernel artifacts. To add more artifacts just add to types
+# For now just support kernel types already being used by something in OE-core
+for types in bzImage zImage vmlinux vmlinuz fitImage; do
+    for kernel in `find /run/media/$1/ -name $types*`; do
+        cp $kernel /boot
+    done
+done
 
 umount /boot