[oe-commits] [openembedded-core] 54/64: base-files: ignore "mesg n" error messages

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rpurdie pushed a commit to branch master
in repository openembedded-core.

commit 4511a524f906c97db7c7674ad34e7bc8630649e3
Author: Patrick Ohly <patrick.ohly at intel.com>
AuthorDate: Wed Jul 12 10:44:12 2017 +0200

    base-files: ignore "mesg n" error messages
    
    When using "su - myuser" to change from root to a non-privileged user,
    "mesg n" from the default .profile fails with "mesg: error: tty device
    is not owned by group `tty' or "mesg: cannot open /dev/ttyS0:
    Permission denied", depending on whether mesg comes from busybox or
    util-linux.
    
    This does not happen during a normal login because permissions on
    /dev/tty* get changed while doing that, something that isn't possible
    with plain "su -".
    
    As the error can't be avoided and failures of mesg probably aren't
    particularly important, now error messages get dumped to /dev/null.
    
    [YOCTO #11127]
    
    Signed-off-by: Patrick Ohly <patrick.ohly at intel.com>
    Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/recipes-core/base-files/base-files/share/dot.profile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-core/base-files/base-files/share/dot.profile b/meta/recipes-core/base-files/base-files/share/dot.profile
index 979793e..a873160 100644
--- a/meta/recipes-core/base-files/base-files/share/dot.profile
+++ b/meta/recipes-core/base-files/base-files/share/dot.profile
@@ -7,4 +7,5 @@ fi
 # path set by /etc/profile
 # export PATH
 
-mesg n
+# Might fail after "su - myuser" when /dev/tty* is not writable by "myuser".
+mesg n 2>/dev/null

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