Re: A light VM for testing Xen.

[Charles Gonçalves <charles.fg@xxxxxxxxx>]

Did you setup a bridge?


Assuming a debian like dist:

# Xen bridge  - you can also use the 192.168.0.0
auto xenbr0
iface xenbr0 inet static
        bridge_ports none
        bridge_stp no
        address 10.0.0.1 # or  192.168.1.1
        netmask 255.255.255.0 # or 255.255.255.0
        network 10.0.0.0 # 192.168.1.0
        broadcast 10.0.0.255 # 192.168.1.255
# if needed setup nameserver approprietaly
# dns-nameserver 193.136.212.1


then:

#sudo sysctl -w net.ipv4.ip_forward=1 also edit /etc/sysctl.conf
sudo sysctl -w net.ipv4.ip_forward=1

sudo iptables -A FORWARD --in-interface xenbr0 -j ACCEPT
sudo iptables --table nat -A POSTROUTING --out-interface XXXX -j MASQUERADE

sudo apt-get install iptables-persistent
sudo /etc/init.d/iptables-persistent save
sudo /etc/init.d/iptables-persistent reload

# Inside the Gest:
ifconfig eth0 10.0.0.2 up
route add default gw 10.0.0.1




Atenciosamente,
Charles Ferreira Gonçalves



On Mon, Dec 28, 2020 at 8:30 PM Jason Long <hack3rcon@xxxxxxxxx> wrote:
>
> Thank you.
> I used "xl create /etc/xen/test.cfg" and got below error:
>
> $ sudo xl create /etc/xen/test.cfg
> Parsing config from /etc/xen/test.cfg
> libxl: error: libxl_exec.c:117:libxl_report_child_exitstatus: 
> /etc/xen/scripts/vif-bridge online [176788] exited with error status 1
> libxl: error: libxl_device.c:1286:device_hotplug_child_death_cb: script: 
> Could not find bridge device xenbr0
> libxl: error: libxl_create.c:1519:domcreate_attach_devices: Domain 3:unable 
> to add vif devices
> libxl: error: libxl_exec.c:117:libxl_report_child_exitstatus: 
> /etc/xen/scripts/vif-bridge offline [176854] exited with error status 1
> libxl: error: libxl_device.c:1286:device_hotplug_child_death_cb: script: 
> Could not find bridge device xenbr0
> libxl: error: libxl_domain.c:1034:libxl__destroy_domid: Domain 3:Non-existant 
> domain
> libxl: error: libxl_domain.c:993:domain_destroy_callback: Domain 3:Unable to 
> destroy guest
> libxl: error: libxl_domain.c:920:domain_destroy_cb: Domain 3:Destruction of 
> domain failed
>
>
> I changed config as below:
>
> vif=['10.0.0.60,script=vif-route']
>
> And added below lines to "/etc/xen/xend-config.sxp" file:
> (network-script network-route)
> (vif-script vif-route)
>
> Then commented out below line in "xl.conf" file:
> vif.default.script="vif-route"
>
> But, I got below error:
>
> $ sudo xl create /etc/xen/test.cfg
> Parsing config from /etc/xen/test.cfg
> libxl: error: libxl_exec.c:117:libxl_report_child_exitstatus: 
> /etc/xen/scripts/vif-route online [286618] exited with error status 1
> libxl: error: libxl_device.c:1286:device_hotplug_child_death_cb: script: 
> /etc/xen/scripts/vif-route failed; error detected.
> libxl: error: libxl_create.c:1519:domcreate_attach_devices: Domain 5:unable 
> to add vif devices
> libxl: error: libxl_exec.c:117:libxl_report_child_exitstatus: 
> /etc/xen/scripts/vif-route offline [286702] exited with error status 1
> libxl: error: libxl_device.c:1286:device_hotplug_child_death_cb: script: 
> /etc/xen/scripts/vif-route failed; error detected.
> libxl: error: libxl_domain.c:1034:libxl__destroy_domid: Domain 5:Non-existant 
> domain
> libxl: error: libxl_domain.c:993:domain_destroy_callback: Domain 5:Unable to 
> destroy guest
> libxl: error: libxl_domain.c:920:domain_destroy_cb: Domain 5:Destruction of 
> domain failed
>
> How can I solve it?
>
>
>
> On Monday, December 28, 2020, 04:32:06 PM GMT+3:30, Charles Gonçalves 
> <charles.fg@xxxxxxxxx> wrote:
>
>
>
>
>
> I think that you need to read the documentation about setup the bridge, and 
> the xl tool... Those are prerequisite for the commands that I send to you
>
> On Mon, Dec 28, 2020, 12:20 Jason Long <hack3rcon@xxxxxxxxx> wrote:
> > Thank you.
> > I did that command and logs are:
> > https://paste.ubuntu.com/p/x2BpZfHSh7/
> > https://paste.ubuntu.com/p/nVk5tXb2zk/
> >
> > Is everything OK? How can I launch my VM?
> >
> >
> >
> >
> > On Monday, December 28, 2020, 12:30:50 AM GMT+3:30, Charles Gonçalves 
> > <charles.fg@xxxxxxxxx> wrote:
> >
> >
> >
> >
> >
> > You can use xen-tools to create a small server
> >
> > In a Debian based distro:
> >
> > sudo apt install -y lvm2 debootstrap libconfig-inifiles-perl 
> > libdata-validate-domain-perl libdata-validate-ip-perl 
> > libdata-validate-uri-perl libfile-slurp-perl libfile-which-perl 
> > libsort-versions-perl libterm-ui-perl libtext-template-perl openssh-client 
> > perl debian-archive-keyring rinse libtest-notabs-perl
> >
> > git clone https://github.com/xen-tools/xen-tools.git
> > cd xen-tools
> > make install
> >
> > xen-create-image --hostname=test \
> >   --ip=10.0.0.60 \
> >   --broadcast=10.0.0.255 \
> >   --gateway=10.0.0.1 \
> >   --netmask=255.255.255.0 \
> >   --memory=128mb \
> >   --dir=/var/tpcv/xen_images \
> >   --dist=trusty
> >
> >
> > Obviously you should replace the values for your network environment
> >
> >
> > On Sun, Dec 27, 2020, 20:23 Jason Long <hack3rcon@xxxxxxxxx> wrote:
> >> Hello,
> >> I want to test my Xen to be sure it's working properly. Any pre-build 
> >> light VM?
> >>
> >> Thank you.
> >>
> >>
> >
> >