[oe-commits] [openembedded-core] 04/09: initramfs-framework: mount efivarfs to make Intel VROC work well

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rpurdie pushed a commit to branch master-next
in repository openembedded-core.

commit 8c15d2407a3e83afbe3fbf6a27095d62c4f9527a
Author: Liwei Song <liwei.song at windriver.com>
AuthorDate: Wed Mar 20 23:19:12 2019 -0400

    initramfs-framework: mount efivarfs to make Intel VROC work well
    
    efivafs contain some meta data about Intel VROC, which will be
    used by mdadm to create raid device.
    
    These are preparation work to support boot from Intel VROC RAID
    disk.
    
    Signed-off-by: Liwei Song <liwei.song at windriver.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/recipes-core/initrdscripts/initramfs-framework/init | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/meta/recipes-core/initrdscripts/initramfs-framework/init b/meta/recipes-core/initrdscripts/initramfs-framework/init
index 3c7e094..c71ce0c 100755
--- a/meta/recipes-core/initrdscripts/initramfs-framework/init
+++ b/meta/recipes-core/initrdscripts/initramfs-framework/init
@@ -72,6 +72,7 @@ ROOTFS_DIR="/rootfs" # where to do the switch root
 MODULE_PRE_HOOKS=""  # functions to call before running each module
 MODULE_POST_HOOKS="" # functions to call after running each module
 MODULES_DIR=/init.d  # place to look for modules
+EFI_DIR=/sys/firmware/efi  # place to store device firmware information
 
 # make mount stop complaining about missing /etc/fstab
 touch /etc/fstab
@@ -81,6 +82,10 @@ mkdir -p /proc /sys /run/lock /var/lock
 mount -t proc proc /proc
 mount -t sysfs sysfs /sys
 
+if [ -d $EFI_DIR ];then
+	mount -t efivarfs none /sys/firmware/efi/efivars
+fi
+
 # populate bootparam environment
 for p in `cat /proc/cmdline`; do
 	opt=`echo $p | cut -d'=' -f1`

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