From 8a21b128d4deb874c05eb81ebbc1265175ad69ba Mon Sep 17 00:00:00 2001 From: Chengguang Xu Date: Wed, 9 May 2018 21:26:14 +0800 Subject: [PATCH] Add additional message when backendfs is extfs without d_type support ext4 support d_type by default, but filetype feature is a tunable so there is still a chance to disable it for some reasons. In this case, print additional message to explicitly tell how to support d_type. Signed-off-by: Chengguang Xu --- daemon/graphdriver/overlayutils/overlayutils.go | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/daemon/graphdriver/overlayutils/overlayutils.go b/daemon/graphdriver/overlayutils/overlayutils.go index 7058688328..71f6d2d460 100644 --- a/daemon/graphdriver/overlayutils/overlayutils.go +++ b/daemon/graphdriver/overlayutils/overlayutils.go @@ -14,6 +14,11 @@ func ErrDTypeNotSupported(driver, backingFs string) error { if backingFs == "xfs" { msg += " Reformat the filesystem with ftype=1 to enable d_type support." } + + if backingFs == "extfs" { + msg += " Reformat the filesystem (or use tune2fs) with -O filetype flag to enable d_type support." + } + msg += " Backing filesystems without d_type support are not supported." return graphdriver.NotSupportedError(msg)