From d154f5685501650338ebf804ac6ab5dd6ede2dbb Mon Sep 17 00:00:00 2001
From: Martin Gracik <mgracik@redhat.com>
Date: Wed, 27 Apr 2011 13:56:47 +0200
Subject: [PATCH] Use crc32 check when compressing with xz

---
 src/pylorax/installtree.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/pylorax/installtree.py b/src/pylorax/installtree.py
index f7502ebc..13ae6f15 100644
--- a/src/pylorax/installtree.py
+++ b/src/pylorax/installtree.py
@@ -521,7 +521,11 @@ class LoraxInstallTree(BaseLoraxClass):
                                 stdin=find.stdout, stdout=subprocess.PIPE,
                                 preexec_fn=chdir)
 
-        compressed = subprocess.Popen([type, "-%s" % speed], stdin=cpio.stdout,
+        cmd = [type, "-%s" % speed]
+        if type == "xz":
+            cmd.append("--check=crc32")
+
+        compressed = subprocess.Popen(cmd, stdin=cpio.stdout,
                                       stdout=open(initrd.fpath, "wb"))
 
         logger.debug("compressing")