install: tweak flash information output (MR 1991)

This adds generic advice when no flashing method is configured and
remove deprecated angle brackets.

Closes: #1948

pmb/install/_install.py

@@ -518,8 +518,6 @@ def print_flash_info(args):
     """ Print flashing information, based on the deviceinfo data and the
         pmbootstrap arguments. """
     logging.info("*** FLASHING INFORMATION ***")
-    logging.info("Run the following to flash your installation to the"
-                 " target device:")
 
     # System flash information
     method = args.deviceinfo["flash_method"]
@@ -527,6 +525,16 @@ def print_flash_info(args):
     flasher_actions = flasher.get("actions", {})
     requires_split = flasher.get("split", False)
 
+    if method == "none":
+        logging.info("Refer to the installation instructions of your device,"
+                     " or the generic install instructions in the wiki.")
+        logging.info("https://wiki.postmarketos.org/wiki/Installation_guide"
+                     "#pmbootstrap_flash")
+        return
+
+    logging.info("Run the following to flash your installation to the"
+                 " target device:")
+
     if "flash_rootfs" in flasher_actions and not args.sdcard and \
             bool(args.split) == requires_split:
         logging.info("* pmbootstrap flasher flash_rootfs")
@@ -584,7 +592,7 @@ def install_recovery_zip(args, steps):
     # Flash information
     logging.info("*** FLASHING INFORMATION ***")
     logging.info("Flashing with the recovery zip is explained here:")
-    logging.info("<https://postmarketos.org/recoveryzip>")
+    logging.info("https://postmarketos.org/recoveryzip")
 
 
 def install_on_device_installer(args, step, steps):