GParted 0.23.0 --enable-libparted-dmraid --enable-online-resize

Libparted 3.2

Shrink /dev/sda4 from 908.31 GiB to 810.66 GiB 00:00:01 ( ERROR )
calibrate /dev/sda4 00:00:00 ( SUCCESS )
path: /dev/sda4 (partition) start: 1615872 end: 1906485504 size: 1904869633 (908.31 GiB)
check file system on /dev/sda4 for errors and (if possible) fix them 00:00:01 ( ERROR )
ntfsresize -i -f -v /dev/sda4
ntfsresize v2015.3.14 (libntfs-3g) ERROR(2): Failed to check '/dev/sda4' mount state: No such file or directory Probably /etc/mtab is missing. It's too risky to continue. You might try an another Linux distro.

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