Use GRUB bootloader for all UEFI platforms (#1762)

* Use GRUB bootloader for all UEFI platforms
* Introduce and use file_env command
* Compress squashfs for aarch64 as well

buildroot-external/board/arm-uefi/generic-aarch64/cmdline.txt

@@ -1 +1 @@
-cmdline=""
+console=tty1 console=ttyS0

buildroot-external/board/arm-uefi/generic-aarch64/grub.cfg

@@ -43,7 +43,7 @@ fi
 save_env A_TRY A_OK B_TRY B_OK ORDER MACHINE_ID
 
 default_cmdline="rootwait zram.enabled=1 zram.num_devices=3 apparmor=1 security=apparmor systemd.machine_id=$MACHINE_ID cgroup_enable=memory fsck.repair=yes"
-source ($root)/cmdline.txt
+file_env -f ($root)/cmdline.txt cmdline
 
 # root is a full HDD/partition definition in GRUB format like hd0,gpt1
 # We extract the part before the comma to then append our own partition index

buildroot-external/board/pc/generic-x86-64/hassos-hook.sh

@@ -3,13 +3,15 @@
 
 function hassos_pre_image() {
     local BOOT_DATA="$(path_boot_dir)"
+    local EFIPART_DATA="${BINARIES_DIR}/efi-part"
 
     mkdir -p "${BOOT_DATA}/EFI/BOOT"
-    mkdir -p "${BOOT_DATA}/EFI/barebox"
 
-    cp "${BINARIES_DIR}/barebox.bin" "${BOOT_DATA}/EFI/BOOT/BOOTx64.EFI"
-    cp "${BR2_EXTERNAL_HASSOS_PATH}/bootloader/barebox-state-efi.dtb" "${BOOT_DATA}/EFI/barebox/state.dtb"
-    cp "${BOARD_DIR}/cmdline.txt" "${BOOT_DATA}/cmdline.txt"
+    cp "${BOARD_DIR}/../grub.cfg" "${EFIPART_DATA}/EFI/BOOT/grub.cfg"
+    cp "${BOARD_DIR}/cmdline.txt" "${EFIPART_DATA}/cmdline.txt"
+    grub-editenv "${EFIPART_DATA}/EFI/BOOT/grubenv" create
+
+    cp -r "${EFIPART_DATA}/"* "${BOOT_DATA}/"
 }
 
 

buildroot-external/board/pc/generic-x86-64/meta

@@ -1,7 +1,7 @@
 BOARD_ID=generic-x86-64
 BOARD_NAME="Generic x86-64"
 CHASSIS=embedded
-BOOTLOADER=barebox
+BOOTLOADER=grub
 KERNEL_FILE=bzImage
 BOOT_SYS=efi
 BOOT_SPL=false

buildroot-external/board/pc/grub.cfg

@@ -0,0 +1,59 @@
+set default=99
+set timeout=5
+
+set ORDER="A B"
+set A_OK=0
+set B_OK=0
+set A_TRY=0
+set B_TRY=0
+set MACHINE_ID=""
+load_env
+
+# select bootable slot
+for SLOT in $ORDER; do
+    if [ "$SLOT" == "A" ]; then
+        INDEX=0
+        OK=$A_OK
+        TRY=$A_TRY
+        A_TRY=1
+    fi
+    if [ "$SLOT" == "B" ]; then
+        INDEX=1
+        OK=$B_OK
+        TRY=$B_TRY
+        B_TRY=1
+    fi
+    if [ "$OK" -eq 1 -a "$TRY" -eq 0 ]; then
+        default=$INDEX
+        break
+    fi
+done
+
+# reset booted flags
+if [ "$default" -eq 99 ]; then
+    if [ "$A_OK" -eq 1 -a "$A_TRY" -eq 1 ]; then
+        A_TRY=0
+    fi
+    if [ "$B_OK" -eq 1 -a "$B_TRY" -eq 1 ]; then
+        B_TRY=0
+    fi
+    default=0
+fi
+
+save_env A_TRY A_OK B_TRY B_OK ORDER MACHINE_ID
+
+default_cmdline="rootwait zram.enabled=1 zram.num_devices=3 apparmor=1 security=apparmor systemd.machine_id=$MACHINE_ID cgroup_enable=memory fsck.repair=yes"
+file_env -f ($root)/cmdline.txt cmdline
+
+# root is a full HDD/partition definition in GRUB format like hd0,gpt1
+# We extract the part before the comma to then append our own partition index
+# at the end. This is hacky but the best way I found
+regexp --set 1:boothd (.+),.+ ${root}
+
+menuentry "Slot A (OK=$A_OK TRY=$A_TRY)" {
+    linux (${boothd},gpt2)/bzImage root=PARTUUID=8d3d53e3-6d49-4c38-8349-aff6859e82fd $default_cmdline $cmdline rauc.slot=A
+}
+
+menuentry "Slot B (OK=$B_OK TRY=$B_TRY)" {
+    linux (${boothd},gpt4)/bzImage root=PARTUUID=a3ec664e-32ce-4665-95ea-7ae90ce9aa20 $default_cmdline $cmdline rauc.slot=B
+}

buildroot-external/board/pc/ova/hassos-hook.sh

@@ -3,13 +3,15 @@
 
 function hassos_pre_image() {
     local BOOT_DATA="$(path_boot_dir)"
+    local EFIPART_DATA="${BINARIES_DIR}/efi-part"
 
     mkdir -p "${BOOT_DATA}/EFI/BOOT"
-    mkdir -p "${BOOT_DATA}/EFI/barebox"
 
-    cp "${BINARIES_DIR}/barebox.bin" "${BOOT_DATA}/EFI/BOOT/BOOTx64.EFI"
-    cp "${BR2_EXTERNAL_HASSOS_PATH}/bootloader/barebox-state-efi.dtb" "${BOOT_DATA}/EFI/barebox/state.dtb"
-    cp "${BOARD_DIR}/cmdline.txt" "${BOOT_DATA}/cmdline.txt"
+    cp "${BOARD_DIR}/../grub.cfg" "${EFIPART_DATA}/EFI/BOOT/grub.cfg"
+    cp "${BOARD_DIR}/cmdline.txt" "${EFIPART_DATA}/cmdline.txt"
+    grub-editenv "${EFIPART_DATA}/EFI/BOOT/grubenv" create
+
+    cp -r "${EFIPART_DATA}/"* "${BOOT_DATA}/"
 }
 
 

buildroot-external/board/pc/ova/meta

@@ -1,7 +1,7 @@
 BOARD_ID=ova
 BOARD_NAME="Open Virtual Appliance"
 CHASSIS=vm
-BOOTLOADER=barebox
+BOOTLOADER=grub
 KERNEL_FILE=bzImage
 BOOT_SYS=efi
 BOOT_SPL=false