Add -l flag when using lz4 compression

This isn't documented, but it's needed since the kernel lz4 support is
based on the original streaming format and not the newer default. Use
-l to force the legacy codec.

Fixup lsinitcpio to support the older format, and, add a warning when
the newer format is detected. Who knows when this will be "resolved" ...

Upstream discussion: https://code.google.com/p/lz4/issues/detail?id=102

1 files changed, 3 insertions, 0 deletions

diff --git a/mkinitcpio b/mkinitcpio
index cb94d62..42abde7 100755
--- a/mkinitcpio
+++ b/mkinitcpio
@@ -202,6 +202,9 @@ build_image() {
         xz)
             COMPRESSION_OPTIONS+=' --check=crc32'
             ;;
+        lz4)
+            COMPRESSION_OPTIONS+=' -l'
+            ;;
     esac
 
     cpio_opts=('-0' '-o' '-H' 'newc')