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poky/meta/recipes-core/initscripts/initscripts-1.0/sysfs.sh
Haris Okanovic b30c1f5e46 initscripts/sysfs.sh: Mount /sys/firmware/efi/efivars when possible
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

(From OE-Core rev: 0fb92b500b7d6b84368ca3a85e675400c6473987)

Signed-off-by: Haris Okanovic <haris.okanovic@ni.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
2019-11-10 14:06:10 +00:00

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#!/bin/sh
### BEGIN INIT INFO
# Provides: mountvirtfs
# Required-Start:
# Required-Stop:
# Default-Start: S
# Default-Stop:
# Short-Description: Mount kernel virtual file systems.
# Description: Mount initial set of virtual filesystems the kernel
# provides and that are required by everything.
### END INIT INFO
if [ -e /proc ] && ! [ -e /proc/mounts ]; then
mount -t proc proc /proc
fi
if [ -e /sys ] && grep -q sysfs /proc/filesystems && ! [ -e /sys/class ]; then
mount -t sysfs sysfs /sys
fi
if [ -e /sys/kernel/debug ] && grep -q debugfs /proc/filesystems; then
mount -t debugfs debugfs /sys/kernel/debug
fi
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