[Lxc-users] Mount error when shutting down a container

[Jean-François Leroux]

Ok, thanks for the explanation! -:)

JFL
Le 16/04/2013 04:41, Serge Hallyn a écrit :
> Quoting Jean-François Leroux (leroux.jeanfrancois at gmail.com):
>> Hi,
>>
>> I'm trying lxc on Ubuntu server 12.04 LTS. One thing that concerns me is
>> the error message when issuing a halt command from inside a container
>> (either squeeze container or ubuntu):
>>
>> Squeeze:
>> mount: cannot mount block device rootfs read-only
>>
>> Ubuntu :
>> mount: cannot mount block device
>> /dev/disk/by-uuid/b6480bce-bd88-4f83-a45d-786b17161dca read-only
>>
>> It seems the container wants to mount the host filesystem read-only...
>>
>> Is there a way to correct that or something I'm doing wrong?
> It's nothing to worry about.  Userspace tries to remount the hostfs
> read-only at shutdown.  But in a normal directory-backed container,
> allowing it to do so would mean that that your host rootfs could
> end up being remounted read-only.  That's undesirable :)
>
> -serge