[HPDD-discuss] Lustre build and install on Ubuntu

Hi, I have 2 questions regarding building and installing Lustre server on Ubuntu. We have a running Lustre setup on RHEL and now trying to build and install on Ubuntu. 1. Whether latest Lustre (2.6+) server can be built on Ubuntu with the same steps as for RHEL? Or are there different steps for Ubuntu. 2. Has anyone tried this before and/or Whether Lustre2.6.x server is supported on Ubuntu. 3. In another experiment, I took my RHEL working rpms (patched kernel & lustre) and converted them to .deb packages using "alien". I could install all rpms and then could also boot into my lustre-patched-kernel. I am able to mkfs.lustre my MGS (and even could mount it) But mkfs.lustre for MDT fails. a. First it gave errors like "Invalid filesystem option set". So I installed e2fsprogs-1.42.7.wc1-7.el6.x86_64.rpm and e2fsprogs-libs-1.42.7.wc1-7.el6.x86_64.rpm (which I had used for my RHEL) using "alien" b. After this now it gives me another error, "Filesystem has unsupported feature(s) while setting up superblock". I found similar issue at https://www.mail-archive.com/pkg-lustre-maintainers@lists.alioth.debian.org/ msg00263.html . I am NOT getting message "Your mke2fs.conf file does not define the ldiskfs filesystem type.". Still tried solution suggested in the next mail, which did not work. Even links for ldiskfsprogs are not working to try. Do I need some other version of e2fsprogs? Can anyone throw light on this ? Thanks, Mandar Joshi