Thank you for replying.

# strings $(which ntfs-3g) | grep ntfs-plugin
/usr/lib/x86_64-linux-gnu/ntfs-3g/ntfs-plugin-%08lx.so

# ldd /usr/lib/x86_64-linux-gnu/ntfs-3g/ntfs-plugin-80000013.so
        linux-vdso.so.1 (0x00007ffee53a0000)
        libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f85b3528000)
        /lib64/ld-linux-x86-64.so.2 (0x00007f85b38fc000)

I am guessing the plugin is in the correct location (not fully sure how %08lx expands).

I found out we disabled deduplication on the ntfs system to make sure it was not causing issues a while ago, so this was not the root cause of the issues I am experiencing for now. I will do further debugging.

Kind regards,

Jelle de Jong

On 8/1/19 2:48 PM, Nikolay Ivanets wrote:
Do

strings $(which ntfs-3g) | grep ntfs-plugin

to find correct plugins location.

--
   Mykola Ivanets

чт, 1 серп. 2019, 14:48 користувач Jelle de Jong <jelledej...@powercraft.nl <mailto:jelledej...@powercraft.nl>> пише:

    Hello everybody,

    I am trying to debug some issues I am having that the mount start
    showing a completely different filesystem (linux instead of windows
    ntfs) and I wanted to make sure the deduplication is still working.

    So it is not showing in the syslog that the deduplication plugin is
    loaded?? Is this normal new behaviour?

    lvcreate --snapshot --name sr8-disk2-snapshot-copy --size 50G
    /dev/lvm1-vol/sr8-disk2
    lvchange -ay /dev/lvm1-vol/sr8-disk2-snapshot-copy
    blkid /dev/lvm1-vol/sr8-disk2-snapshot-copy
    kpartx -avg /dev/lvm1-vol/sr8-disk2-snapshot-copy
    blkid /dev/mapper/lvm1--vol-sr8--disk2--snapshot--copy2
    mkdir /mnt/sr8-sdb2-copy
    mount -o ro  -t ntfs-3g
    /dev/mapper/lvm1--vol-sr8--disk2--snapshot--copy2  /mnt/sr8-sdb2-copy
    ls -hal /mnt/sr8-sdb2-copy/USERS/
    df -hal
    grep ntfs /var/log/syslog

    # grep ntfs /var/log/syslog
    Aug  1 13:18:24 backup ntfs-3g[1737]: Version 2017.3.23AR.3 integrated
    FUSE 28
    Aug  1 13:18:24 backup ntfs-3g[1737]: Mounted
    /dev/mapper/lvm1--vol-sr8--disk2--snapshot--copy2 (Read-Only, label
    "DATA", NTFS 3.1)
    Aug  1 13:18:24 backup ntfs-3g[1737]: Cmdline options: ro
    Aug  1 13:18:24 backup ntfs-3g[1737]: Mount options:
    
ro,allow_other,nonempty,relatime,fsname=/dev/mapper/lvm1--vol-sr8--disk2--snapshot--copy2,blkdev,blksize=4096
    Aug  1 13:18:24 backup ntfs-3g[1737]: Ownership and permissions
    disabled, configuration type 7

    root@backup:~# ls -hal /usr/lib/x86_64-linux-gnu/ntfs-3g
    total 68K
    drwxr-xr-x  2 root root 4.0K Jan 10  2017 .
    drwxr-xr-x 45 root root  40K Aug  1 06:12 ..
    -rw-r--r--  1 root root  17K Aug  1 13:04 ntfs-plugin-80000013.so

    Kind regards,

    Jelle de Jong


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