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From fd9f902477a8d8df6ce0fa1b044484c435fff247 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 | 50 +++++++++++++++++++++++++++++---------------------
1 file changed, 29 insertions(+), 21 deletions(-)
diff --git a/lsinitrd.sh b/lsinitrd.sh
index 8dc9032..a697bc2 100755
--- a/lsinitrd.sh
+++ b/lsinitrd.sh
@@ -160,27 +160,35 @@ 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 --"
- ;;
- $'\x02\x21'*)
- CAT="lz4 -d -c";;
- *)
- CAT="xzcat --";
- if echo "test"|xz|xzcat --single-stream >/dev/null 2>&1; then
- CAT="xzcat --single-stream --"
- fi
- ;;
-esac
+CAT=$({
+ 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 --"
+ ;;
+ $'\x02\x21'*)
+ 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()
{
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