[lxc-users] LXD: error: open /etc/subuid: no such file or directory

[Tycho Andersen]

On Wed, Nov 12, 2014 at 11:38:17PM +0530, Kunal Kushwaha wrote:
> Hi Stéphane,
> 
> I am now setting up  my dev environment in ubuntu-trusty-32 with
> kernel 3.13.0-39-generic.
> Now I am getting problem
> 
> root at vagrant-ubuntu-trusty-32:/home/vagrant/go/src/github.com/lxc/lxd/lxd# ./lxd
> error: User "root" has no subuids.
> 
> 
> Basically I am creating  dev environment in vagrant.

You can fix this by adding a root to /etc/subuid and /etc/subgid,
something like:

root:100000:65536

should work. (Of course, you want to be sure that root's range doesn't
overlap with anything that already exists.)

Tycho

> 
> Regards,
> Kunal Kushwaha
> 
> 
> 
> 
> On Tue, Nov 11, 2014 at 11:53 PM, Stéphane Graber <stgraber at ubuntu.com> wrote:
> > On Tue, Nov 11, 2014 at 11:51:01PM +0530, Kunal Kushwaha wrote:
> >> Hi,
> >>
> >> I am trying setup development environment for lxd.
> >> But I am facing issue of "error: open /etc/subuid: no such file or directory"
> >>
> >> $sudo ./lxd --tcp 127.0.0.1:8080
> >> error: open /etc/subuid: no such file or directory
> >>
> >> Please help to resolve this.
> >>
> >> Regards,
> >> Kunal Kushwaha
> >
> > You need a system with unprivileged LXC support, which currently means a
> > 3.12 or higher kernel and a recent enough version of shadow to get you
> > /etc/subuid and /etc/subgid as well as newuidmap and newgidmap.
> >
> > You can read more about that requirement of lxd at:
> >  - https://github.com/lxc/lxd/issues/19
> >  - https://github.com/lxc/lxd/blob/master/specs/userns-idmap.md
> >
> > --
> > Stéphane Graber
> > Ubuntu developer
> > http://www.ubuntu.com
> >
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