From: pschwan <pschwan>
Date: Mon, 23 Dec 2002 23:47:25 +0000 (+0000)
Subject: lconf now aborts with a helpful message if the dd fails, instead of
X-Git-Tag: v1_7_100~1^248~135
X-Git-Url: https://git.whamcloud.com/?a=commitdiff_plain;h=b6061f411141485c742ccefdedecf243a9ac0782;p=fs%2Flustre-release.git

lconf now aborts with a helpful message if the dd fails, instead of
waiting until it can't create the filesystem
---

diff --git a/lustre/utils/lconf.in b/lustre/utils/lconf.in
index c4cb3c8..4647c9d 100755
--- a/lustre/utils/lconf.in
+++ b/lustre/utils/lconf.in
@@ -588,7 +588,11 @@ def init_loop(file, size, fstype):
     if config.reformat()  or not os.access(file, os.R_OK | os.W_OK):
         if size < 8000:
             error(file, "size must be larger than 8MB")
-        run("dd if=/dev/zero bs=1k count=0 seek=%d of=%s" %(size,  file))
+        (ret, out) = run("dd if=/dev/zero bs=1k count=0 seek=%d of=%s" %(size,
+                                                                         file))
+        if ret:
+            panic("Unable to create backing store:", file)
+
     loop = loop_base()
     # find next free loop
     for n in xrange(0, MAX_LOOP_DEVICES):