From 7031115695bf014f39b4efc32a3e71a11daebfbc Mon Sep 17 00:00:00 2001

From: Harald Hoyer <harald@redhat.com>

Date: Thu, 27 Mar 2014 09:27:53 +0100

Subject: [PATCH] lsinitrd.sh: prevent < <$() construct

MIME-Version: 1.0

Content-Type: text/plain; charset=UTF-8

Content-Transfer-Encoding: 8bit

Running dracut in a chroot environment, which has /dev not correctly

setup will result in errors like:

/usr/bin/lsinitrd: line 164: /dev/fd/62: No such file or directory

cpio: Malformed number �5�OK��

cpio: Malformed number 5�OK��

cpio: Malformed number �OK��

This is because bash wants /dev/fd/<num> for constructs like:

foo < <$(bar)

---

 lsinitrd.sh | 49 +++++++++++++++++++++++++++++--------------------

 1 file changed, 29 insertions(+), 20 deletions(-)

diff --git a/lsinitrd.sh b/lsinitrd.sh

index 70e12f81..2fbebd8e 100755

--- a/lsinitrd.sh

+++ b/lsinitrd.sh

@@ -160,27 +160,36 @@ case $bin in

         ;;

 esac

-if [[ $SKIP ]]; then

-    read -N 6 bin < <($SKIP "$image")

-fi

-case $bin in

-    $'\x1f\x8b'*)

-        CAT="zcat --";;

-    BZh*)

-        CAT="bzcat --";;

-    $'\x71\xc7'*|070701)

-        CAT="cat --"

-        ;;

-    $'\x04\x22'*)

-        CAT="lz4 -d -c";;

-    *)

-        CAT="xzcat --";

-        if echo "test"|xz|xzcat --single-stream >/dev/null 2>&1; then

-            CAT="xzcat --single-stream --"

-        fi

-        ;;

-esac

+CAT=$({

+        if [[ $SKIP ]]; then

+            $SKIP "$image"

+        else

+            cat "$image"

+        fi } | {

+        read -N 6 bin

+        case $bin in

+            $'\x1f\x8b'*)

+                echo "zcat --"

+                ;;

+            BZh*)

+                echo "bzcat --"

+                ;;

+            $'\x71\xc7'*|070701)

+                echo "cat --"

+                ;;

+            $'\x04\x22'*)

+                echo "lz4 -d -c"

+                ;;

+            *)

+                if echo "test"|xz|xzcat --single-stream >/dev/null 2>&1; then

+                    echo "xzcat --single-stream --"

+                else

+                    echo "xzcat --"

+                fi

+                ;;

+        esac

+    })

 skipcpio()

 {