[CentOS] mount options

[Fred Smith]

On Mon, Nov 17, 2014 at 05:23:45PM -0800, Keith Keller wrote:
> On 2014-11-18, Fred Smith <fredex at fcshome.stoneham.ma.us> wrote:
> > I've got a Venus DS3R Pro2 external drive unit with two drives set up
> > as RAID-1, and the raid volume is formatted as ext4.
> >
> > it is listed in /etc/fstab as:
> >
> > UUID=f787c482-fb92-4ba7-87d6-cfeaef6b64c2	/mnt/backup	ext4	defaults,users 0 2
> >
> > if the external unit (which attaches via e-sata) is NOT powered on when
> > the system boots, it hangs and drops to a maintenance prompt.
> >
> > I'd sure like to have it defer that particular mount and continue to boot.
> 
> You need the noauto option.
> 
> UUID=f787c482-fb92-4ba7-87d6-cfeaef6b64c2	/mnt/backup	ext4	defaults,users,noauto 0 2
> 
> It's actually documented in the mount man page (as well as the fstab
> page).
> 
> --keith

thanks, Keith.

But I don't think that's what I want. I want it to mount when the system
boots, but if for some reason it is not powered on, I don't want it to
hang up the whole boot process.

noauto says it won't mount based on "mount -a", and AFAIK that's how
the filesystems from fstab all get mounted at boot. No?

Fred

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