80_mender_choose_partitions_grub.cfg

# Historical note: The "mender_boot_part" variable means "partition to use as
# root filesystem while booting", not "the boot partition". So it would be
# better if it was named "mender_rootfs_part", but we can't rename it for
# compatibility reasons. The rest of the variable names follow the latter
# logic.

if [ "${mender_boot_part}" = "${mender_rootfsa_part}" -a test -n "${mender_kernela_part}" ]; then
    mender_ptable_part=${mender_kernela_part}
    mender_kernel_path=""
elif [ "${mender_boot_part}" = "${mender_rootfsb_part}" -a test -n "${mender_kernelb_part}" ]; then
    mender_ptable_part=${mender_kernelb_part}
    mender_kernel_path=""
else
    mender_ptable_part=${mender_boot_part}
    mender_kernel_path="/boot"
fi

if test -e (${mender_grub_storage_device},gpt${mender_ptable_part})/; then
    root="${mender_grub_storage_device},gpt${mender_ptable_part}"
else
    root="${mender_grub_storage_device},msdos${mender_ptable_part}"
fi

if test -n "${mender_rootfsa_uuid}" -a test -n  "${mender_rootfsb_uuid}"; then
    if [ "${mender_boot_part}" = "${mender_rootfsa_part}" ]; then
        mender_kernel_root="PARTUUID=${mender_rootfsa_uuid}"
    elif [ "${mender_boot_part}" = "${mender_rootfsb_part}" ]; then
        mender_kernel_root="PARTUUID=${mender_rootfsb_uuid}"
    fi
else
    mender_kernel_root="${mender_kernel_root_base}${mender_boot_part}"
fi