diff --unified --recursive --text a/system76driver/actions.py b/system76driver/actions.py
--- a/system76driver/actions.py	2021-02-23 12:14:22.000000000 -0700
+++ b/system76driver/actions.py	2021-02-23 15:19:40.284093704 -0700
@@ -102,8 +102,8 @@
 
 
 def update_initramfs():
-    log.info('Calling `update-initramfs`...')
-    SubProcess.check_call(['update-initramfs', '-u'])
+    log.info('Calling `mkinitcpio`...')
+    SubProcess.check_call(['mkinitcpio', '-P'])
 
 
 def parse_lspci(text):
@@ -264,7 +264,7 @@
                 update_grub()
 
         if any(action.update_initramfs for action in self.needed):
-            yield _('Running `update-initramfs`')
+            yield _('Running `mkinitcpio`')
             update_initramfs()
 
 
@@ -1494,8 +1494,8 @@
 
 class i915_initramfs(FileAction):
     update_initramfs = True
-    relpath = ('usr', 'share', 'initramfs-tools', 'modules.d', 's76-i915-initramfs.conf')
-    content = '# Added by system76-driver\ni915\n'
+    relpath = ('etc', 'modprobe.d', 's76-i915-mkinitcpio.conf')
+    content = '# Added by system76-driver\noptions i915\n'
 
     def describe(self):
         return _('Add i915 driver to initramfs')