diff --git a/src/devhelper.c b/src/devhelper.c
index d51c885..87e5ab2 100644
--- a/src/devhelper.c
+++ b/src/devhelper.c
@@ -102,6 +102,7 @@ int unsubscribe_cmd(void)
 
 int devinfo_cmd(devinfo_t *dev, const char *udid)
 {
+	int ret;
 	uint64_t this_ecid = 0;
 	char *productType = NULL;
 	char *productVersion = NULL;
@@ -110,67 +111,67 @@ int devinfo_cmd(devinfo_t *dev, const char *udid)
 	char *CPUArchitecture = NULL;
 	idevice_t device = NULL;
 	lockdownd_client_t lockdown = NULL;
-	if (idevice_new(&device, udid) != IDEVICE_E_SUCCESS)
+	if ((ret = idevice_new_with_options(&device, udid, IDEVICE_LOOKUP_USBMUX)) != IDEVICE_E_SUCCESS)
 	{
-		LOG(LOG_ERROR, "Error connecting to device.");
+		LOG(LOG_ERROR, "Error connecting to device: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
-	if (lockdownd_client_new(device, &lockdown, "palera1n") != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_client_new_with_handshake(device, &lockdown, "palera1n")) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Device is not in normal mode.");
+		LOG(LOG_ERROR, "Device is not in normal mode: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_t node = NULL;
-	if (lockdownd_get_value(lockdown, NULL, "UniqueChipID", &node) != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_get_value(lockdown, NULL, "UniqueChipID", &node)) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)lockdownd_client_free(lockdown);
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Error getting ECID");
+		LOG(LOG_ERROR, "Error getting ECID: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_get_uint_val(node, &this_ecid);
 	plist_free(node);
 
 	node = NULL;
-	if (lockdownd_get_value(lockdown, NULL, "ProductType", &node) != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_get_value(lockdown, NULL, "ProductType", &node)) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)lockdownd_client_free(lockdown);
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Error getting product type");
+		LOG(LOG_ERROR, "Error getting product type: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_get_string_val(node, &productType);
 	plist_free(node);
 
 	node = NULL;
-	if (lockdownd_get_value(lockdown, NULL, "CPUArchitecture", &node) != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_get_value(lockdown, NULL, "CPUArchitecture", &node)) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)lockdownd_client_free(lockdown);
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Error getting CPU type");
+		LOG(LOG_ERROR, "Error getting CPU type: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_get_string_val(node, &CPUArchitecture);
 	plist_free(node);
 
 	node = NULL;
-	if (lockdownd_get_value(lockdown, NULL, "ProductVersion", &node) != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_get_value(lockdown, NULL, "ProductVersion", &node)) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)lockdownd_client_free(lockdown);
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Error getting product version");
+		LOG(LOG_ERROR, "Error getting product version: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_get_string_val(node, &productVersion);
 	plist_free(node);
 
 	node = NULL;
-	if (lockdownd_get_value(lockdown, NULL, "BuildVersion", &node) != LOCKDOWN_E_SUCCESS)
+	if ((ret = lockdownd_get_value(lockdown, NULL, "BuildVersion", &node)) != LOCKDOWN_E_SUCCESS)
 	{
 		(void)lockdownd_client_free(lockdown);
 		(void)idevice_free(device);
-		LOG(LOG_ERROR, "Error getting build version");
+		LOG(LOG_ERROR, "Error getting build version: %d (%s)", ret, lockdownd_strerror(ret));
 		return -1;
 	}
 	plist_get_string_val(node, &buildVersion);
diff --git a/src/main.c b/src/main.c
index 2d85940..13bc5ac 100644
--- a/src/main.c
+++ b/src/main.c
@@ -33,7 +33,9 @@
 #define OVERRIDE_MAGIC 0xd803b376
 
 unsigned int verbose = 0;
-char xargs_cmd[0x270] = "xargs ", palerain_flags_cmd[0x30] = "deadbeef";
+/* we want to write to them so don't use string literals */
+char xargs_cmd[0x270] = { 'x', 'a', 'r', 'g', 's', '\0' }, 
+	palerain_flags_cmd[0x30] = { 'd', 'e', 'a', 'd', 'b', 'e', 'e', 'f', '\0' };
 extern char** environ;
 
 niarelap_file_t* kpf_to_upload_1 = &checkra1n_kpf_pongo_lzma;
diff --git a/src/optparse.c b/src/optparse.c
index 77da1e8..4993906 100644
--- a/src/optparse.c
+++ b/src/optparse.c
@@ -327,6 +327,11 @@ int optparse(int argc, char* argv[]) {
 	if ((strstr(xargs_cmd, "serial=") != NULL) && !force_use_verbose_boot && (palerain_flags & palerain_option_setup_rootful)) {
 		palerain_flags &= ~palerain_option_verbose_boot;
 	}
+
+	if ((palerain_flags & (palerain_option_rootless | palerain_option_rootful)) == 0) {
+		LOG(LOG_FATAL, "must specify -l option");
+		return -1;
+	}
     
 	snprintf(palerain_flags_cmd, 0x30, "palera1n_flags 0x%" PRIx64, palerain_flags);
 	LOG(LOG_VERBOSE3, "palerain_flags: %s", palerain_flags_cmd);