Ah ...

Il 02/03/2017 15:56, Jason Dillaman ha scritto:
I'll refer you to the man page for blkdiscard [1]. Since it operates
on the block device, it doesn't know about filesystem holes and
instead will discard all data specified (i.e. it will delete all your
data).

[1] http://man7.org/linux/man-pages/man8/blkdiscard.8.html

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