[Libguestfs] [PATCH] appliance: Fix code which gets list of kernels.

[Richard W.M. Jones]

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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>From 1b289ce96bde557cf3706aa7417641355aa78f20 Mon Sep 17 00:00:00 2001
From: Matthew Booth <mbooth at redhat.com>
Date: Fri, 4 Dec 2009 15:38:09 +0000
Subject: [PATCH] appliance: Fix code which gets list of kernels.

The first 'ls' command was failing, so the second 'ls' command
would never run at all.
---
 appliance/libguestfs-supermin-helper.in |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletions(-)

diff --git a/appliance/libguestfs-supermin-helper.in b/appliance/libguestfs-supermin-helper.in
index 4d8fd04..ab3aad5 100755
--- a/appliance/libguestfs-supermin-helper.in
+++ b/appliance/libguestfs-supermin-helper.in
@@ -38,7 +38,10 @@ initrd="$3"
 # without arch second.
 
 arch=$(echo "@host_cpu@" | sed 's/^i.86$/i?86/')
-kernels=$(ls -1dvr /boot/vmlinuz-*.$arch* 2>/dev/null | grep -v xen; ls -1dvr /boot/vmlinuz-* 2>/dev/null | grep -v xen)
+kernels=$(
+    ls -1dvr /boot/vmlinuz-*.$arch* 2>/dev/null | grep -v xen ||: ;
+    ls -1dvr /boot/vmlinuz-* 2>/dev/null | grep -v xen
+)
 
 if [ -z "$kernels" ]; then
     echo "$0: failed to find a suitable kernel in /boot directory" >&2
-- 
1.6.5.2