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Diffstat (limited to 'source/a/sysvinit-scripts/scripts/rc.S')
| -rw-r--r-- | source/a/sysvinit-scripts/scripts/rc.S | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/source/a/sysvinit-scripts/scripts/rc.S b/source/a/sysvinit-scripts/scripts/rc.S index 7c004e6f5..37eaac2f9 100644 --- a/source/a/sysvinit-scripts/scripts/rc.S +++ b/source/a/sysvinit-scripts/scripts/rc.S @@ -24,6 +24,31 @@ if [ ! -d /sys/kernel -a -z "$container" ]; then /sbin/mount -v sysfs /sys -n -t sysfs 2> /dev/null fi +# The efivarfs filesystem is used for reading and writing EFI variables, such +# as the boot menu entries. By default efivarfs will be mounted read-write on +# the /sys/firmware/efi/efivars directory. To modify this behavior, edit the +# file: /etc/default/efivarfs +# Only try to mount if this directory exists (so the kernel supports efivarfs): +if [ -d /sys/firmware/efi/efivars ]; then + # Only try to mount if efivarfs is not already mounted: + if ! mount | grep -wq efivarfs ; then + # Mount according to /etc/default/efivarfs: + if [ -r /etc/default/efivarfs ]; then + . /etc/default/efivarfs + else # default + EFIVARFS=rw + fi + case "$EFIVARFS" in + 'rw') + mount -o rw -t efivarfs none /sys/firmware/efi/efivars + ;; + 'ro') + mount -o ro -t efivarfs none /sys/firmware/efi/efivars + ;; + esac + fi +fi + # If /run exists, mount a tmpfs on it (unless the # initrd has already done so): if [ -d /run -a -z "$container" ]; then |