Ensure /dev/pts directory exists on pts setup

When `lxc.autodev = 0` and empty tmpfs is mounted on /dev and private pts are requested, we need to ensure '/dev/pts' exists before attempting to mount devpts on it. Signed-off-by: Jean-Tiare LE BIGOT <jean-tiare.le-bigot@ovh.net> Acked-by: Stéphane Graber <stgraber@ubuntu.com>

Ensure /dev/pts directory exists on pts setup
7a8bee8a · Jean-Tiare LE BIGOT · Stéphane Graber · 7802d482 · 7a8bee8a
Commit 7a8bee8a authored Aug 02, 2014 by Jean-Tiare LE BIGOT Committed by Stéphane Graber Aug 08, 2014
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conf.c src/lxc/conf.c +7 -0

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--- a/src/lxc/conf.c
+++ b/src/lxc/conf.c
@@ -1605,6 +1605,13 @@ static int setup_pts(int pts)
 		return -1;
 	}

+	if (mkdir("/dev/pts", 0755)) {
+		if ( errno != EEXIST ) {
+		    SYSERROR("failed to create '/dev/pts'");
+		    return -1;
+		}
+	}
+
 	if (mount("devpts", "/dev/pts", "devpts", MS_MGC_VAL,
 		  "newinstance,ptmxmode=0666,mode=0620,gid=5")) {
 		SYSERROR("failed to mount a new instance of '/dev/pts'");