saving uncommitted changes in /etc prior to dnf run

sysctl.conf

@@ -19,7 +19,7 @@ kernel.nmi_watchdog = 0
 kernel.core_pattern = /var/crash/core.%e.pid_%p.uid_%u.sig_%s
 kernel.dmesg_restrict = 1
 kernel.perf_event_paranoid = 3
-kernel_modules_disabled = 1
+#kernel_modules_disabled = 1
 kernel.yama.ptrace_scope = 1 2 3
 
 # FS
@@ -110,7 +110,7 @@ vm.swappiness = 25
 vm.dirty_background_ratio = 1
 vm.dirty_ratio = 1
 vm.dirty_background_bytes = 5
-vm.dirty_bytes = 0
+#vm.dirty_bytes = 0
 vm.dirty_writeback_centisecs = 500
 vm.dirty_expire_centisecs = 3000
 vm.vfs_cache_pressure = 50