[libvirt-users] start lxc container on fedora 19

[Daniel P. Berrange]

On Wed, Jul 31, 2013 at 12:46:58PM +0530, Aarti Sawant wrote:
> hello,
> 
> i am new to lxc, i have created a lxc container on fedora 19
> i created a container rootfs of fedora 19 by using
> yum --installroot=/containers/test1 --releasever=19 install openssh
> 
> test1.xml file for container test1
> <domain type="lxc">
>   <name>test1</name>
>   <vcpu placement="static">1</vcpu>
>   <cputune>
>     <shares>1024</shares>
>     <period>1000000</period>
>   </cputune>
>   <memtune>
>     <hard_limit unit="M">1024</hard_limit>
>     <soft_limit unit="M">128</soft_limit>
>     <min_guarantee unit="M">64</min_guarantee>
>   </memtune>
>   <blkiotune>
>     <weight>800</weight>
>   </blkiotune>
>   <memory unit="KiB">102400</memory>
>   <os>
>     <type>exe</type>
>     <init>/bin/bash</init>
>   </os>
>   <clock offset="utc"/>
>   <on_poweroff>destroy</on_poweroff>
>   <on_reboot>restart</on_reboot>
>   <on_crash>destroy</on_crash>
>   <devices>
>     <emulator>/usr/libexec/libvirt_lxc</emulator>
>     <filesystem accessmode="passthrough" type="mount">
>       <source dir="/containers/test1/"/>
>       <target dir="/"/>
>     </filesystem>

>     <filesystem accessmode="passthrough" type="mount">
>       <source dir="/containers/test1/var"/>
>       <target dir="/var"/>
>     </filesystem>
....snip more <filesystem> elements...

Why are you adding all these sub-mounts for /var, /dev, etc, etc?

You installed the entire OS tree into /containers/test1, so it
should be sufficient to just have that first <filesystem>
entry for '/'.  You'd only want to add extra mounts for
/var, etc if the directory on the host came from somewhere
outside the /containers/test1 location.

NB, also libvirt sets up /dev - you shouldn't try to
override it, or you'll loose access to the pre-populate
device nodes, which is probably what's causing your
failure.

>     <interface type="bridge">
>       <source bridge="br0"/>
>     </interface>
>     <console port="0" type="pty"/>
>   </devices>
> </domain>

Daniel
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