[Users] ploop and mount options

[Kir Kolyshkin]

On 09/06/2012 03:53 PM, Corin Langosch wrote:
> Hi again,
>
> just a small follow up on this:
>
> Inside the the container I'm able to change the barrier mount option 
> with:
>
> "mount -o remount,barrier=0 /" or "mount -o remount,barrier=1 /"
>
> But changing other options like "noatime" (mount -o remount,noatime /) 
> fails with "mount: permission denied".
>
> Now I wonder if this is intended or a bug? Why allow changing barrier 
> and deny noatime option?

Well, I can't tell why it lets you remount with barrier but does not let 
you remount with noatime.
But I can tell noatime is not needed nowdays, since relatime is used by 
default and makes much more sense.

You can file a bug to bugzilla.openvz.org, component ploop

>
> BTW: I still haven't found a way to specify mount options in the 
> container's config :(

Again, file a bug (enhancement) to bugzilla.openvz.org, component vzctl.


>
> Corin
>
> On 03.07.2012 at 09:52 +0200, Corin Langosch <info at corinlangosch.com> 
> wrote:
>> Hi there,
>>
>> Is there any way to specify mount options for the container's root
>> filesystem in the container's config when using ploop?
>>
>> So a normal options string like
>> "noatime,data=writeback,journal_async_commit,barrier=0,errors=remount-ro". 
>>
>>
>> Thanks for any hints :)
>>
>> Corin
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