[HPDD-discuss] Trouble viewing 2.4 changelogs

In a test Lustre 2.4.0 filesystem we are running into difficulties viewing the changelogs on the mds. Is there something I'm doing wrong here? There are two clients registered, and I can see the current index increment when I perform file creates/unlinks. Any help would be greatly appreciated! [root@sultan-mds1 ~]# lfs changelog lustre-MDT0000 can't find fs root for '(null)': -19 Can't open lustre-MDT0000: -19 Can't start changelog: No such device [root@sultan-mds1 ~]# cat /proc/fs/lustre/mdd/lustre-MDT0000/changelog_users current index: 120819 ID index cl1 2962 cl2 2962 [root@sultan-mds1 ~]# lctl get_param mdd.*.changelog_mask mdd.lustre-MDT0000.changelog_mask= MARK CREAT MKDIR HLINK SLINK MKNOD UNLNK RMDIR RENME RNMTO OPEN LYOUT TRUNC SATTR XATTR HSM MTIME CTIME [root@sultan-mds1 ~]# tunefs.lustre --dryrun /dev/sda2 checking for existing Lustre data: found Reading CONFIGS/mountdata Read previous values: Target: lustre-MDT0000 Index: 0 Lustre FS: lustre Mount type: ldiskfs Flags: 0x1 (MDT ) Persistent mount opts: user_xattr,errors=remount-ro Parameters: mgsnode=10.37.248.68@o2ib1 sys.timeout=100 Permanent disk data: Target: lustre-MDT0000 Index: 0 Lustre FS: lustre Mount type: ldiskfs Flags: 0x1 (MDT ) Persistent mount opts: user_xattr,errors=remount-ro Parameters: mgsnode=10.37.248.68@o2ib1 sys.timeout=100 exiting before disk write.