make regex to detect hugepagesz more specific

Signed-off-by: davidplunkett <dp7642@att.com>
Change-Id: I5843c55151e63e6b94e0e2f7a8445397833bc897

diff --git a/firstboot-genesis.sh.template b/firstboot-genesis.sh.template
index fe21ec8..2ad17b2 100644 (file)
--- a/firstboot-genesis.sh.template
+++ b/firstboot-genesis.sh.template
@@ -26,7 +26,7 @@ apt-get install -y --install-recommends linux-generic-hwe-16.04 ipmitool
 
 echo "Checking for hugepages"
 if grep hugepages /proc/cmdline ; then
-    HUGEPAGESZ=$(grep -o 'hugepagesz=[^ ]*' /proc/cmdline | cut -f2 -d'=')
+    HUGEPAGESZ=$(grep -oPe '^hugepagesz=[^ ]*| hugepagesz=[^ ]*' /proc/cmdline | cut -f2 -d'=')
     echo "  Adding directory and mount for hugepages with size=$HUGEPAGESZ"
     if [ -z "HUGEPAGESZ" ]; then
         mkdir -p /dev/hugepages_$HUGEPAGESZ