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-rw-r--r--target/linux/x86/base-files/lib/upgrade/platform.sh24
1 files changed, 24 insertions, 0 deletions
diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index 3b6c25877f..8be96dfcd4 100644
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -1,3 +1,5 @@
+RAMFS_COPY_BIN='grub-bios-setup'
+
platform_check_image() {
local diskdev partdev diff
[ "$#" -gt 1 ] && return 1
@@ -44,6 +46,26 @@ platform_copy_config() {
fi
}
+platform_do_bootloader_upgrade() {
+ local bootpart
+ local diskdev="$1"
+
+ if export_partdevice bootpart 1; then
+ mkdir -p /tmp/boot
+ mount -o rw,noatime "/dev/$bootpart" /tmp/boot
+ echo "(hd0) /dev/$diskdev" > /tmp/device.map
+
+ echo "Upgrading bootloader on /dev/$diskdev..."
+ grub-bios-setup \
+ -m "/tmp/device.map" \
+ -d "/tmp/boot/boot/grub" \
+ -r "hd0,msdos1" \
+ "/dev/$diskdev"
+
+ umount /tmp/boot
+ fi
+}
+
platform_do_upgrade() {
local diskdev partdev diff
@@ -92,4 +114,6 @@ platform_do_upgrade() {
#copy partition uuid
echo "Writing new UUID to /dev/$diskdev..."
get_image "$@" | dd of="/dev/$diskdev" bs=1 skip=440 count=4 seek=440 conv=fsync
+
+ platform_do_bootloader_upgrade "$diskdev"
}