On Tue, Dec 28, 2010 at 7:50 AM, Mick <[email protected]> wrote: > What is the meaning of Opts: (null) ?
My guess is that it is showing the default mount options as stored in the partition's superblock (set by tune2fs -o xxxxx). You can view the current default mount options by using "tune2fs -l /dev/sda1" (or whatever your partition is). Options given on mount commandline (or in fstab) should override the superblock mount options. My dmesg shows (null) as yours does, and tune2fs shows me: Default mount options: (none) > All ext4 partitions were created with a number of options; e.g. > > Filesystem features: has_journal ext_attr resize_inode dir_index filetype > needs_recovery extent flex_bg sparse_super large_file uninit_bg dir_nlink > extra_isize Those are characteristics of your filesystem but I don't think they are considered mount options in this context. > but default mount options are shown as: > > Default mount options: (none) > > Should I be defining something in fstab? (currently I only have noatime). You can view the actual mount options currently in use by doing "cat /proc/mounts" In my fstab I have "defaults,noatime" for my rootfs and in /proc/mounts it shows as: /dev/root / ext4 rw,noatime,barrier=1,data=ordered 0 0 which looks correct to me.
