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If you have a BTRFS snapshot directory on Linux system, "gdu -x" seems to peek into it while "du -x" doesn't peek into it.
Of course, such directory is not listed in /proc/self/mounts (/etc/mtab), since they are created by btrfs subvolume snapshot .... But stepping into such snapshot subvolume and alike are crossing filesystem boundary. The device number are different.
If you have a BTRFS snapshot directory on Linux system, "gdu -x" seems to peek into it while "du -x" doesn't peek into it.
Of course, such directory is not listed in /proc/self/mounts (/etc/mtab), since they are created by
btrfs subvolume snapshot ...
. But stepping into such snapshot subvolume and alike are crossing filesystem boundary. The device number are different.I have snapshot:
Then gdu seems to peek into this.
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