[lxc-users] lxc-start failing in Fedora 20

[Mohit Saxena]

I had installed LXC in fedora 20 day before yesterday using yum. But I got
the version as .9 instead of 1.x and every thing seems to work fine.
On 28 Jun 2014 15:35, "Ajith Adapa" <ajith.adapa at gmail.com> wrote:

> Hi,
>
> lxc-start is failing in latest fedora 20 saying virbr0 is not found.
>
> 1. Is it madatory for the admin to create virbr0 interface before
> starting a container ?
>
> 2. How can I create a container with a default password for root
> rather than auto-generating the same ?
>
>
> # lxc-create -n test -t fedora
> Host CPE ID from /etc/os-release: cpe:/o:fedoraproject:fedora:20
> Checking cache download in /var/cache/lxc/fedora/x86_64/20/rootfs ...
> Cache found. Updating...
> No packages marked for update
> Update finished
> Copy /var/cache/lxc/fedora/x86_64/20/rootfs to /var/lib/lxc/test/rootfs ...
> Copying rootfs to /var/lib/lxc/test/rootfs ...
> Storing root password in '/var/lib/lxc/test/tmp_root_pass'
> Expiring password for user root.
> passwd: Success
> installing fedora-release package
> Package fedora-release-20-3.noarch already installed and latest version
> Nothing to do
>
> Container rootfs and config have been created.
> Edit the config file to check/enable networking setup.
>
> The temporary root password is stored in:
>
>         '/var/lib/lxc/test/tmp_root_pass'
>
>
> The root password is set up as expired and will require it to be changed
> at first login, which you should do as soon as possible.  If you lose the
> root password or wish to change it without starting the container, you
> can change it from the host by running the following command (which will
> also reset the expired flag):
>
>         chroot /var/lib/lxc/test/rootfs passwd
>
> # lxc-start -n test
> lxc-start: failed to attach 'vethKOT10G' to the bridge 'virbr0' : No such
> device
> lxc-start: failed to create netdev
> lxc-start: failed to create the network
> lxc-start: failed to spawn 'test'
>
> ======================================================
> configuration
> ======================================================
>
> # yum install lxc*
> Loaded plugins: langpacks
> Package lxc-extra-1.0.3-2.fc21.x86_64 already installed and latest version
> Package lxc-templates-1.0.3-2.fc21.x86_64 already installed and latest
> version
> Package lxc-libs-1.0.3-2.fc21.x86_64 already installed and latest version
> Package lxc-1.0.3-2.fc21.x86_64 already installed and latest version
> Package lxc-doc-1.0.3-2.fc21.noarch already installed and latest version
> Package lxc-devel-1.0.3-2.fc21.x86_64 already installed and latest version
>
> -------------------------------------------
>
> # lxc-checkconfig
> Kernel configuration not found at /proc/config.gz; searching...
> Kernel configuration found at /boot/config-3.14.5-200.fc20.x86_64
> --- Namespaces ---
> Namespaces: enabled
> Utsname namespace: enabled
> Ipc namespace: enabled
> Pid namespace: enabled
> User namespace: enabled
> Network namespace: enabled
> Multiple /dev/pts instances: enabled
>
> --- Control groups ---
> Cgroup: enabled
> Cgroup clone_children flag: enabled
> Cgroup device: enabled
> Cgroup sched: enabled
> Cgroup cpu account: enabled
> Cgroup memory controller: enabled
> Cgroup cpuset: enabled
>
> --- Misc ---
> Veth pair device: enabled
> Macvlan: enabled
> Vlan: enabled
> File capabilities: enabled
>
> Note : Before booting a new kernel, you can check its configuration
> usage : CONFIG=/path/to/config /usr/bin/lxc-checkconfig
>
> Regards,
> Ajith
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