RFC: unmounting /mnt on AWS instances

Kapil Thangavelu kapil.thangavelu at canonical.com
Tue Nov 18 06:21:06 UTC 2014


On Mon, Nov 17, 2014 at 8:13 PM, Andrew Wilkins <
andrew.wilkins at canonical.com> wrote:

> Hi all,
> I am working on introducing storage as a first-class primitive in Juju.
> Charms will be able to indicate that they require storage (block devices,
> filesystems...), and when you deploy that charm you will be able to specify
> some parameters in order to fulfil the storage requirement.
> One thing I'd like to do is provide users a means of assigning ephemeral
> disks to units. The AMIs we use on AWS currently auto-mount the first
> ephemeral disk (if there is one) at /mnt. I think Azure does something
> similar; not sure about other providers.
> Are you relying on /mnt being there? If so, would it cause you a headache
> if this were taken away, by performing a "umount /mnt" after booting? (Bear
> in mind you can still mount it afterwards if you want to).
> Cheers,
> Andrew
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