From 7aa71ddf263e09afdcb75013b8582aafd9ca00d4 Mon Sep 17 00:00:00 2001 From: "Richard W.M. Jones" Date: Thu, 28 Apr 2016 14:12:23 +0100 Subject: [PATCH] launch: Disable USB in the appliance. Only saves a tiny amount of time, but as we don't use USB we might as well disable it. (cherry picked from commit 29cb8d60d25f650b077e631269ee05c3e4441d75) --- src/launch.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/launch.c b/src/launch.c index 98eca07..9f5b14f 100644 --- a/src/launch.c +++ b/src/launch.c @@ -339,6 +339,7 @@ guestfs_int_appliance_command_line (guestfs_h *g, const char *appliance_dev, " acpi=off" /* ACPI is slow - 150-200ms extra on my laptop */ " printk.time=1" /* display timestamp before kernel messages */ " cgroup_disable=memory" /* saves us about 5 MB of RAM */ + " usbcore.nousb" /* disable USB, only saves about 1ms */ "%s" /* root=appliance_dev */ " %s" /* selinux */ " %s" /* quiet/verbose */ -- 1.8.3.1