From 5873768dbe3be2733874b8cf68cb492817f81a94 Mon Sep 17 00:00:00 2001 From: Kir Kolyshkin Date: Thu, 18 Apr 2019 15:55:55 -0700 Subject: [PATCH] aufs: aufsMount: better errors for unix.Mount() Signed-off-by: Kir Kolyshkin --- daemon/graphdriver/aufs/aufs.go | 2 ++ 1 file changed, 2 insertions(+) diff --git a/daemon/graphdriver/aufs/aufs.go b/daemon/graphdriver/aufs/aufs.go index 38df774225..5a95ef42e0 100644 --- a/daemon/graphdriver/aufs/aufs.go +++ b/daemon/graphdriver/aufs/aufs.go @@ -626,6 +626,7 @@ func (a *Driver) aufsMount(ro []string, rw, target, mountLabel string) (err erro } data := label.FormatMountLabel(fmt.Sprintf("%s,%s", string(b[:bp]), opts), mountLabel) if err = unix.Mount("none", target, "aufs", 0, data); err != nil { + err = errors.Wrap(err, "mount target="+target+" data="+data) return } @@ -633,6 +634,7 @@ func (a *Driver) aufsMount(ro []string, rw, target, mountLabel string) (err erro layer := fmt.Sprintf(":%s=ro+wh", ro[index]) data := label.FormatMountLabel(fmt.Sprintf("append%s", layer), mountLabel) if err = unix.Mount("none", target, "aufs", unix.MS_REMOUNT, data); err != nil { + err = errors.Wrap(err, "mount target="+target+" flags=MS_REMOUNT data="+data) return } }