Handle no internet connection gracefully (#1361)

* Handle no internet connection gracefully

* Update

* flake8

* Update

* Update

Co-authored-by: Daniel Girtler <girtler.daniel@gmail.com>

1 files changed, 9 insertions, 6 deletions

diff --git a/archinstall/lib/networking.py b/archinstall/lib/networking.py
index 3e883a7b..96e8f3a1 100644
--- a/archinstall/lib/networking.py
+++ b/archinstall/lib/networking.py
@@ -4,7 +4,7 @@ import socket
 import struct
 from typing import Union, Dict, Any, List
 
-from .exceptions import HardwareIncompatibilityError
+from .exceptions import HardwareIncompatibilityError, SysCallError
 from .general import SysCommand
 from .output import log
 from .pacman import run_pacman
@@ -33,14 +33,17 @@ def list_interfaces(skip_loopback :bool = True) -> Dict[str, str]:
 
 def check_mirror_reachable() -> bool:
 	log("Testing connectivity to the Arch Linux mirrors ...", level=logging.INFO)
-	if run_pacman("-Sy").exit_code == 0:
-		return True
-
-	elif os.geteuid() != 0:
-		log("check_mirror_reachable() uses 'pacman -Sy' which requires root.", level=logging.ERROR, fg="red")
+	try:
+		if run_pacman("-Sy").exit_code == 0:
+			return True
+		elif os.geteuid() != 0:
+			log("check_mirror_reachable() uses 'pacman -Sy' which requires root.", level=logging.ERROR, fg="red")
+	except SysCallError as err:
+		log(err, level=logging.DEBUG)
 
 	return False
 
+
 def update_keyring() -> bool:
 	log("Updating archlinux-keyring ...", level=logging.INFO)
 	if run_pacman("-Sy --noconfirm archlinux-keyring").exit_code == 0: