From: Chad MILLER <chad.miller@canonical.com>
Date: Thu, 27 Oct 2016 17:15:07 -0400
Subject: Tell zpool to emit full device names

zfs-initramfs currently provides extraneous, undesired symlinks to
devices directly underneath /dev/ to satisfy zpool's historical output
of unqualified device names. By including this environment variable to
signal our intent to zpool, zfs-linux packages can drop the symlink
behavior when updating to its upstream or backported output behavior.

Bug: https://savannah.gnu.org/bugs/?43653
Bug-Debian: https://bugs.debian.org/824974
Bug-Ubuntu: https://bugs.launchpad.net/bugs/1527727
Last-Update: 2016-11-01

Patch-Name: zpool-full-device-name.patch
---
 grub-core/osdep/unix/getroot.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/grub-core/osdep/unix/getroot.c b/grub-core/osdep/unix/getroot.c
index c7aa202..1ca2aab 100644
--- a/grub-core/osdep/unix/getroot.c
+++ b/grub-core/osdep/unix/getroot.c
@@ -239,6 +239,7 @@ grub_util_find_root_devices_from_poolname (char *poolname)
   argv[3] = poolname;
   argv[4] = NULL;
 
+  setenv ("ZPOOL_VDEV_NAME_PATH", "YES", 1);
   pid = grub_util_exec_pipe (argv, &fd);
   if (!pid)
     return NULL;