update lustre build instructions

roles/lustre-client/tasks/main.yml

@@ -23,19 +23,21 @@
   when: ansible_os_family == "RedHat"
 
 # instructions to build these debs:
+# instructions based on this https://linuxsysadm.wordpress.com/2014/10/10/lustre-2-6-on-debian-wheezy-clients/
 # Instantiate an Ubuntu 14.04 instance
 # git clone git://git.hpdd.intel.com/fs/lustre-release.git
 # cd lustre-release
 # optionally git checkout 0754bc8f2623bea184111af216f7567608db35b6 <- I know this commit works on Ubuntu, but I had a lot of trouble with other branches
 # sh autogen.sh
-# ./configure --enable-dist --disable-doc  --disable-server --disable-dependency-tracking --with-o2ib=/var/lib/dkms/mlnx-ofed-kernel/3.1/build/
+# ./configure --enable-dist --disable-doc  --disable-server --disable-dependency-tracking --with-o2ib=/var/lib/dkms/mlnx-ofed-kernel/3.1/build/ <- if you didn't checkout the commit above you may also need to --disable-manpages or similar
+# make dist
 # mkdir BUILD
 # cd BUILD
 # ln -s ../lustre-2.7.62.tar.gz lustre-2.7.62.orig.tar.gz
 # tar zxvf ../lustre-2.7.62.tar.gz
 # cd lustre-2.7.62
 # ./configure --disable-doc  --disable-server --disable-dependency-tracking --with-o2ib=/var/lib/dkms/mlnx-ofed-kernel/3.1/build/
-# vi debian/changelog (the version number on the first line is incorrect)
+# vi debian/changelog (the version number on the first line is incorrect) instead of 2.7.50-1 it should be 2.7.62 .... this may not be true depending on what commit you checked out
 # make debs
 #
 - name: install debs