Re: [Libguestfs] [PATCH] supermin: Die with an error if no kernels found (RHBZ#539746).

kernels=$(ls -1vr /boot/vmlinuz-*.$arch* 2>/dev/null | grep -v xen; ls -1vr /boot/vmlinuz-* 2>/dev/null | grep -v xen) if you add ls' -d option, that will prevent a false-positive match if /boot/vmlinuz-* ever matches a directory containing something whose name includes "xen". Also, you can avoid duplicating the "2>/dev/null | grep -v xen" part by using a single invocatin of ls, and then I noticed that the expansion of the second glob, /boot/vmlinuz-*, would include anything matched by the first one, so this is adequate: kernels=$(ls -1dvr /boot/vmlinuz-* 2>/dev/null | grep -v xen) diff --git a/appliance/libguestfs-supermin-helper.in b/appliance/libguestfs-supermin-helper.in index 69f22e4..a24d905 100755 --- a/appliance/libguestfs-supermin-helper.in +++ b/appliance/libguestfs-supermin-helper.in @@ -38,7 +38,8 @@ initrd="$3" # without arch second. arch=$(echo "@host_cpu@" | sed 's/^i.86$/i?86/') -kernels=$(ls -1vr /boot/vmlinuz-*.$arch* 2>/dev/null | grep -v xen; ls -1vr /boot/vmlinuz-* 2>/dev/null | grep -v xen) +kernels=$(ls -1dvr /boot/vmlinuz-* 2>/dev/null | grep -v xen)