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# Prepare some checks.
# We want to tell the user if we did not install a boot loader.
# To accomplish this we set the NOBOOTLOADER variable to a true value
# that must be unset or set to an emptly value or set to a non-true value
# (so that "is_true $NOBOOTLOADER" returns false, cf. lib/global-functions.sh)
# by all boot-loader installation scripts after successfully installing a boot loader
# (i.e. "is_true $NOBOOTLOADER || echo a boot loader is already installed"):
NOBOOTLOADER=1
# Try to read the BOOTLOADER value if /var/lib/rear/recovery/bootloader is not empty.
# Currently (June 2016) the used BOOTLOADER values (grep for '$BOOTLOADER') are:
# GRUB for GRUB Legacy
# GRUB2 for GRUB 2
# ELILO for elilo
local bootloader_file="$VAR_DIR/recovery/bootloader"
# The output is stored in an artificial bash array so that $BOOTLOADER is the first word:
test -s $bootloader_file && BOOTLOADER=( $( grep -v '^[[:space:]]*#' $bootloader_file ) )