[lxc-users] fstab and lxc

[Eldon Kuzhyelil]

Hi,
I didint have any problem.I was just wondering why my fstab file inside my
vm is empty.Thanks for clearing it out


On Fri, Nov 13, 2015 at 1:03 PM, Fajar A. Nugraha <list at fajar.net> wrote:

> On Fri, Nov 13, 2015 at 1:58 PM, Eldon Kuzhyelil <eldon.mec at gmail.com>
> wrote:
>
>> Hi,
>> I'm trying to set up two LXC containers where one contains a python
>> programm and the other contains my postgres database.I have got the
>> connection between two containers.Now im stuck with fstab configuration
>> file.The fstab file in my system is as below:
>>
>> root at eldon-X550LC:/home/eldon# lxc-ls -f
>> NAME                STATE    IPV4       IPV6  AUTOSTART
>> -------------------------------------------------------
>> my_lxc_ubuntu       RUNNING  10.0.3.87  -     NO
>> postgresLXC_ubuntu  STOPPED  -          -     NO
>>
>> root at eldon-X550LC:/home/eldon# less /etc/fstab
>>
>> # /etc/fstab: static file system information.
>> #
>> # Use 'blkid' to print the universally unique identifier for a
>> # device; this may be used with UUID= as a more robust way to name devices
>> # that works even if disks are added and removed. See fstab(5).
>> #
>> # <file system> <mount point>   <type>  <options>       <dump>  <pass>
>> # / was on /dev/sda6 during installation
>> UUID=0c85eedf-589a-4dd3-a2e3-41e133a7dc13 /               ext2
>> errors=remount-ro 0       1
>> ~
>> ~
>> ~
>>
>> But when i am trying to view the fstab file inside my LXC container i am
>> getting this:
>>
>> ubuntu at my_lxc_ubuntu:~$ less /etc/fstab
>> # UNCONFIGURED FSTAB FOR BASE SYSTEM
>> ...skipping...
>> # UNCONFIGURED FSTAB FOR BASE SYSTEM
>>
>> Is there any error here?
>>
>>
> ... and your problem is?
>
> /etc/fstab inside the container is pretty much ignored. At least when
> using ubuntu, the default apparmor policy would prevent the containers from
> being able to mount anything. Which is normal. All container mounts are
> done on the host side (including via container's config file).
>
> When NOT using apparmor-capable distro, or when you specifically allow
> mounts inside the container, it's still best to let the host do the
> mounting.
>
> So an empty fstab INSIDE the container is normal. Nothing wrong with that.
>
> --
> Fajar
>
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