sprintf(temppath, "%s/%s/dev", slavesdir, slavepath);
if (read_block_dev_entry(temppath, &majdev, &mindev)) {
perror("Error getting slave device numbers.");
sprintf(temppath, "%s/%s/dev", slavesdir, slavepath);
if (read_block_dev_entry(temppath, &majdev, &mindev)) {
perror("Error getting slave device numbers.");