Hi, I'd like to get some guidance on aufs behavior I noticed lately. I have 2 HDDs merged using aufs: mount -v -t aufs -o sum,create=mfs,dirs=/media/hdd1=rw:/media/hdd3=rw none /media/share I noticed lately that the modification time does not change if I copy new files into some directories. If a directory exits on both hdd1 and hdd3 and the files is copied into hdd3 - date does not change in aufs mount but changes on hdd3. If a directory exists on only hdd3 the directory modify date changes on aufs as well. Two things happened lately that - in my opinion - can cause this: - I ungraded Ubuntu 14.04 LTS from the previous LTS release - I replaced a HDD: deleted hdd2 and appended hdd3 into aufs Some relevant information: #Linux and kernel version Ubuntu 14.04 LTS 3.13.0-39-generic #66-Ubuntu SMP Tue Oct 28 13:30:27 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux #AUFS version aufs 3.13-20140303 #cat /proc/mounts /dev/sda1 /media/hdd1 ext4 rw,noatime,data=ordered 0 0 /dev/sdb1 /media/hdd3 ext4 rw,noatime,data=ordered 0 0 none /media/share aufs rw,noatime,si=dccfb401106ea55a,create=mfs,sum 0 0 # cat /sys/fs/aufs/* CONFIG_AUFS_FS=m CONFIG_AUFS_BRANCH_MAX_127=y CONFIG_AUFS_SBILIST=y CONFIG_AUFS_EXPORT=y CONFIG_AUFS_INO_T_64=y CONFIG_AUFS_BR_RAMFS=y CONFIG_AUFS_BR_FUSE=y CONFIG_AUFS_POLL=y CONFIG_AUFS_BR_HFSPLUS=y CONFIG_AUFS_BDEV_LOOP=y Please let me know what to do in order to get the directory modification time to update. Thank you! Daniel
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