When I create ext4 filesystem, there are many "features", which I can enable and disable – like has_journal, extent, huge_file and so on. Is there any way to know, which options were used while creating ext4 filesystem (after it been created, I mean)?
I have existed ext4 partition (created by somebody), but even don't know, did it use journal or extents.
Best Answer
I suppose you could use the
dumpe2fs
utility, to get a dump of ext2/etx3/ext4 filesystme informations.For instance, something like this might do :
ANd the beginning of the output looks like this, on my computer :