Revert "[update] : Added archiso v50.1 initcpio"

This reverts commit ec9f8b3.

Author: Hayao0819

system/initcpio/archiso_shutdown

@@ -0,0 +1,39 @@
+#!/bin/ash
+
+# /oldroot depends on things inside /oldroot/run/archiso...
+mkdir /oldrun
+mount -n --move /oldroot/run /oldrun
+
+# Unmount all mounts now.
+umount "$(mount | awk '$3 ~/^\/oldroot/ {print $3}' | sort -r)"
+
+# Remove all dm-snapshot devices.
+dmsetup remove_all
+
+# Remove all loopback devices.
+for _lup in $(grep ^/dev/loop /oldrun/archiso/used_block_devices | tac); do
+    if ! losetup -d -- "${_lup}" 2> /dev/null; then
+        umount -d -- "${_lup}"
+    fi
+done
+
+# Unmount the space used to store *.cow.
+umount /oldrun/archiso/cowspace
+
+# Unmount boot device if needed (no copytoram=y used)
+if [ ! -d /oldrun/archiso/copytoram ]; then
+    if [ -d /oldrun/archiso/img_dev ]; then
+        umount /oldrun/archiso/img_dev
+    else
+        umount /oldrun/archiso/bootmnt
+    fi
+fi
+
+# reboot / poweroff / halt, depending on the argument passed by init
+# if something invalid is passed, we halt
+case "$1" in
+  reboot|poweroff|halt) "$1" -f ;;
+  *) halt -f;;
+esac
+
+# vim: set ft=sh:

system/initcpio/hooks/archiso_pxe_common

@@ -67,13 +67,11 @@ run_latehook () {
         # shellcheck disable=SC2154
         # defined via initcpio's parse_cmdline()
         if [ "${copytoram}" = "y" ]; then
-            for curif in /sys/class/net/*; do
-                netdev=${curif#/sys/class/net/}
-                ip addr flush dev "${netdev}"
-                ip link set "${netdev}" down
-            done
+            if [ -n "${bootif_dev}" ]; then
+                ip addr flush dev "${bootif_dev}"
+                ip link set "${bootif_dev}" down
+            fi
         elif [ "${copy_resolvconf}" != "n" ] && [ -f /etc/resolv.conf ]; then
-            rm -f /new_root/etc/resolv.conf
             cp /etc/resolv.conf /new_root/etc/resolv.conf
         fi
     fi