[OpenWrt-Devel,v3,3/3] x86: add preinit hook for bootloader upgrade
diff mbox series

Message ID 20200114174545.1514-4-tomek_n@o2.pl
State New
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Series
  • x86: upgrade bootloader on sysupgrade
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Commit Message

Tomasz Maciej Nowak Jan. 14, 2020, 5:45 p.m. UTC
This commit fills the void for current OpenWrt installations which will
be still on old bootloader version even after "x86: add bootloader
upgrade on sysupgrade", since it performs bootloader upgrade only on
sysupgrade. To keep all OpenWrt deploynents on the same GRUB version,
add preinit hook, which will perform upgrade of the bootloader on first
boot after sysupgrade.

It's temporary solution and should be deleted, when the first release
including this hook will no longer be supported by OpenWrt team.
We can assume that all installations should be on current bootolader
version and from there sysupgrade routine will be sufficient.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>
---
 .../lib/preinit/81_upgrade_bootloader         | 19 +++++++++++++++++++
 .../x86/base-files/lib/upgrade/platform.sh    |  3 ++-
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 target/linux/x86/base-files/lib/preinit/81_upgrade_bootloader

Patch
diff mbox series

diff --git a/target/linux/x86/base-files/lib/preinit/81_upgrade_bootloader b/target/linux/x86/base-files/lib/preinit/81_upgrade_bootloader
new file mode 100644
index 0000000000..3a4e756b1e
--- /dev/null
+++ b/target/linux/x86/base-files/lib/preinit/81_upgrade_bootloader
@@ -0,0 +1,19 @@ 
+#!/bin/sh
+
+upgrade_bootloader() {
+	local diskdev
+
+	. /lib/upgrade/common.sh
+
+	if [ ! -f /boot/grub/upgraded ] && export_bootdevice && export_partdevice diskdev 0; then
+		echo "(hd0) /dev/$diskdev" > /tmp/device.map
+		/usr/sbin/grub-bios-setup \
+			-m "/tmp/device.map" \
+			-d "/boot/grub" \
+			-r "hd0,msdos1" \
+			"/dev/$diskdev" \
+		&& touch /boot/grub/upgraded
+	fi
+}
+
+[ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main upgrade_bootloader
diff --git a/target/linux/x86/base-files/lib/upgrade/platform.sh b/target/linux/x86/base-files/lib/upgrade/platform.sh
index 8be96dfcd4..53c751861c 100644
--- a/target/linux/x86/base-files/lib/upgrade/platform.sh
+++ b/target/linux/x86/base-files/lib/upgrade/platform.sh
@@ -60,7 +60,8 @@  platform_do_bootloader_upgrade() {
 			-m "/tmp/device.map" \
 			-d "/tmp/boot/boot/grub" \
 			-r "hd0,msdos1" \
-			"/dev/$diskdev"
+			"/dev/$diskdev" \
+		&& touch /boot/grub/upgraded
 
 		umount /tmp/boot
 	fi