Discussion:
[ovirt-users] vdsm keeps removing BOOTPROTO=dhcp from ifcfg-ovirtmgmt
Jakub Niedermertl
10 years ago
Permalink
Hi all,

I'd like my ovirtmgmt bridge to fetch ip address from dhcp, but vdsm keeps removing 'BOOTPROTO=dhcp' from /etc/sysconfig/network-scripts/ifcfg-ovirtmgmt.

I set the file as follows:

DEVICE=ovirtmgmt
TYPE=Bridge
DELAY=0
STP=off
ONBOOT=yes
BOOTPROTO=dhcp
MTU=1500
DEFROUTE=no
NM_CONTROLLED=no
IPV6INIT=no

call 'sudo systemctl restart network' and ip address is successfully assigned. Then reboot the machine and ip address is not fetched and ifcfg-ovirtmgmt looks like this

# Generated by VDSM version 4.17.0-1240.git487a19e.fc22
DEVICE=ovirtmgmt
TYPE=Bridge
DELAY=0
STP=off
ONBOOT=yes
MTU=1500
DEFROUTE=no
NM_CONTROLLED=no
IPV6INIT=no
HOTPLUG=no

Is there any way how to prevent vdsm from removing BOOTPROTO statement or make ovirtmgmt to work with dhcp?

Environment:
Host: runs in virt-manager vm, Fedora 22
vdsm: 4.17.0-1240.git487a19e.fc22 from http://resources.ovirt.org/pub/ovirt-3.6-pre/rpm/fc$releasever/

Thanks.

Jakub
Ondřej Svoboda
10 years ago
Permalink
Ahoj Kubo,

would you try running 'sudo vdsClient -s 0 setSafeNetworkConfig' right
after restarting the network service? I think your configuration needs
be persisted in VDSM's network persistence so it is restored (with the
same configuration) on startup.

Anyway, VDSM should be used to configure networks (directly using
vdsClient or indirectly through oVirt engine or via other means -- RPC).
Your network may be configured by running (assuming your NIC is eth0):

vdsClient -s 0 setupNetworks
'networks={ovirtmgmt:{nic:eth0,bootproto:dhcp,blockingdhcp:true,bridged:true,stp:false,defaultRoute:false}}'

If this doesn't help please attach /var/log/vdsm/supervdsm.log or file a
bug with myself as the assignee :-)

Thanks,
Ondra
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Jakub Niedermertl
10 years ago
Permalink
Ahoj,

I've created a bug https://bugzilla.redhat.com/show_bug.cgi?id=1252534 and assign it to you.

Thanks for help
Jakub

----- Original Message -----
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Tyler Couto
10 years ago
Permalink
Hi Jakub,

I think I had a similar problem. Vdsm would change the parameters of my
network interface even when I used the ovirt management console to change
it. There are files that vdsm use to configure the ifcfg-* files in
/var/lib/vdsm/persistence/netconf/ovirtmgmt on the virtual server hosts.
Maybe you can try fooling around with those.

Good luck,
Tyler
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