[OE-core] [zeus 30/31] initscripts/sysfs.sh: Mount /sys/firmware/efi/efivars when possible

Armin Kuster akuster808 at gmail.com
Wed Nov 13 15:32:12 UTC 2019


From: Haris Okanovic <haris.okanovic at ni.com>

Without this change, efibootmgr is unable to recover BootOrder if lost
during a previous write operation, e.g. exceeded storage capacity. This
is problematic using EFI to manage boot flow from Linux (E.g. via RAUC).

https://www.kernel.org/doc/Documentation/filesystems/efivarfs.txt

Signed-off-by: Haris Okanovic <haris.okanovic at ni.com>
Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808 at gmail.com>
---
 meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh b/meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh
index f5b5b99..4871ee9 100644
--- a/meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh
+++ b/meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh
@@ -26,6 +26,10 @@ if [ -e /sys/kernel/config ] && grep -q configfs /proc/filesystems; then
   mount -t configfs configfs /sys/kernel/config
 fi
 
+if [ -e /sys/firmware/efi/efivars ] && grep -q efivarfs /proc/filesystems; then
+  mount -t efivarfs efivarfs /sys/firmware/efi/efivars
+fi
+
 if ! [ -e /dev/zero ] && [ -e /dev ] && grep -q devtmpfs /proc/filesystems; then
   mount -n -t devtmpfs devtmpfs /dev
 fi
-- 
2.7.4



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