From d0486fbf1258035b611b5745a9fd926df9a063bc Mon Sep 17 00:00:00 2001
From: alaviss <alaviss@users.noreply.github.com>
Date: Wed, 30 Oct 2019 21:38:41 +0000
Subject: [PATCH] dracut/zfs-load-key.sh: properly remove prefixes
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Removes the 'ZFS=' prefix from $BOOTFS instead of $root. This makes sure
that the 'zfs:' prefix remains stripped so that users with
'root=zfs:dataset' cmdline can have key loaded on boot again.

Reviewed-by: Garrett Fields <ghfields@gmail.com>
Reviewed-by: Dacian Reece-Stremtan <dacianstremtan@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Hiếu Lê <leorize+oss@disroot.org>
Closes #9520
---
 contrib/dracut/90zfs/zfs-load-key.sh.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/dracut/90zfs/zfs-load-key.sh.in b/contrib/dracut/90zfs/zfs-load-key.sh.in
index 42dc1d08f3d2..3f466798e72a 100755
--- a/contrib/dracut/90zfs/zfs-load-key.sh.in
+++ b/contrib/dracut/90zfs/zfs-load-key.sh.in
@@ -30,7 +30,7 @@ if [ "${root}" = "zfs:AUTO" ] ; then
     BOOTFS="$(zpool list -H -o bootfs | awk '$1 != "-" {print; exit}')"
 else
     BOOTFS="${root##zfs:}"
-    BOOTFS="${root##ZFS=}"
+    BOOTFS="${BOOTFS##ZFS=}"
 fi
 
 # if pool encryption is active and the zfs command understands '-o encryption'