[OE-core] [PATCH] base-files: set ptmxmode to 666
Stefan Agner
stefan at agner.ch
Fri Nov 15 16:09:44 UTC 2019
From: Stefan Agner <stefan.agner at toradex.com>
Make sure that the (newer) /dev/pts/ptmx is accessible by users. This
is useful e.g. when running containers which symlink /dev/ptmx to
/dev/pts/ptmx on start. The default mode (000) does not allow to
create ptys inside the container.
Using 666 when symlinking /dev/ptmx is also recommended by the kernel
documentation when /dev/ptmx is symlinked:
https://www.kernel.org/doc/Documentation/filesystems/devpts.txt
Also buildroot uses ptmxmode=0666. The patch introducing the change
explains related use cases why this is necessary a bit more in depth:
https://github.com/buildroot/buildroot/commit/8196b299ba12bd6741bf7f4462cad180dab77fb0#diff-2d4604b9e565eb19fa52ce31f282f06c
Signed-off-by: Stefan Agner <stefan.agner at toradex.com>
---
meta/recipes-core/base-files/base-files/fstab | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/meta/recipes-core/base-files/base-files/fstab b/meta/recipes-core/base-files/base-files/fstab
index d79a01602f..70e400f567 100644
--- a/meta/recipes-core/base-files/base-files/fstab
+++ b/meta/recipes-core/base-files/base-files/fstab
@@ -2,7 +2,7 @@
/dev/root / auto defaults 1 1
proc /proc proc defaults 0 0
-devpts /dev/pts devpts mode=0620,gid=5 0 0
+devpts /dev/pts devpts mode=0620,ptmxmode=0666,gid=5 0 0
tmpfs /run tmpfs mode=0755,nodev,nosuid,strictatime 0 0
tmpfs /var/volatile tmpfs defaults 0 0
--
2.17.1
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