В Sun, 12 Jul 2015 09:09:37 -0600
Chris Murphy
Or mkfs.ext4 -O ^has_journal /dev/sda1 will create one without the journal.
Yes.
How safe it is to run without journalling is debatable.
The journal mainly obviates the need to run fsck after a crash or unclean umount. It doesn't itself make the fs safer.
Actually it does. Without journal there is no guarantee that related changes will happen in order or even happen at all. And it is not always possible to even detect it (consider - updating pointers to second level blocks without writing and updating block content itself). It is true that journal is not the only technique to achieve filesystem consistency. But for ext* it does make fs safer. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org