From 3b8feef5b46f73449cbe503b18822d4d8fe3f50f Mon Sep 17 00:00:00 2001
From: Nils Meyer <nils@nm.cx>
Date: Thu, 6 Oct 2016 20:09:54 +0000
Subject: [PATCH] Resolve symlink for device

Resolving the symlink before using the Device Variable fixes issues with lsblk and blkid. Symlinks may be problematic when using ZFS and using a path like /dev/zvol/poolname/volname. Fixes coreos/bugs#1599 for me.
---
 bin/coreos-install | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/bin/coreos-install b/bin/coreos-install
index 88ecf83..7cc166b 100755
--- a/bin/coreos-install
+++ b/bin/coreos-install
@@ -309,6 +309,11 @@ if [[ -z "${DEVICE}" ]]; then
     exit 1
 fi
 
+# Symlink may cause trouble with lsblk and blkid
+if [[ -L "${DEVICE}" ]]; then
+    DEVICE=$(readlink -f "${DEVICE}")
+fi
+
 if ! [[ $(lsblk -n -d -o TYPE "${DEVICE}") =~ ^(disk|loop|lvm)$ ]]; then
     echo "$0: Target block device (${DEVICE}) is not a full disk." >&2
     exit 1