Hi Tris,
On 04/19/2017 06:07 PM, Tris Hoar wrote:
On 18/04/2017 15:54, Frank Thommen wrote:
Hi,
I am currently struggling with the right way to configure a bonding
device via kickstart (via PXE).
I am installing servers which have "eno" network interfaces. Instead of
the expected bonding device with two active slaves (bonding mode is
balance-alb), I get a bonding device with only one active slave and an
independent, non-bonded network device. Also the bonding device gets
its MAC address from the second instead of from the first device.
[...]
The used PXE configuration is
LABEL CentOS-7
kernel centos-7/vmlinuz
append initrd=centos-7/initrd.img ip=dhcp nameserver=xx.xx.xx.xx
ksdevice=eno1 inst.repo=http://our.mirror.server/7/os/x86_64
inst.ks.sendmac inst.ks=http://our.kickstart.server/ks.cgi
and the network settings in the kickstart file are
network --device bond0 --bondslaves=eno1,eno2
--bondopts=mode=balance-alb --bootproto=dhcp --hostname=myhost --activate
[...]
Hi Frank,
This is from my satellite kickstart where I'm building the bond at the
point of PXE booting, and using static (I'm working on doing this with
DHCP and tagged VLANs but currently cant get to the hardware needed
since messing up the BMC config :( )
LABEL linux
KERNEL boot/RedHat-7.3-x86_64-vmlinuz
APPEND initrd=boot/RedHat-7.3-x86_64-initrd.img
ks=http://example.com/host.ks ks.device=bootif network ks.sendmac
bond=bond0:eno1,eno2:mode=802.3ad vlan=bond0.10:bond0
ip=10.10.0.2::10.10.0.1:255.255.255.0:host.example.com:bond0.10:none
nameserver=10.10.0.1
Then in the KS we have
network --bootproto=static --device=link --gateway=10.10.0.1
--hostname=host.example.com --ip=10.10.0.2
--nameserver=10.10.0.1,10.11.0.1 --netmask=255.255.255.0
It should be fairly simple to convert that to use DHCP as you just need
to change the IP line in the kernel parameters and ensure you have
--device=link in the kickstart.
BTW cat /proc/net/bonding/bond0 shows more info on how the bond is
actually setup and working.
Finally the issue was a simple and stupid syntax error in the ks config.
I had omitted the equal sign between "--device" and "bond0":
network --device=bond0 --bondslaves=eno1,eno2
--bondopts=mode=balance-alb --bootproto=dhcp --hostname=myhost --activate
works much better :-). Since the PXE config is global for all hosts
(being configured with or without bonding device), I cannot use bonding
definitions at that point. However the idea of using --device=link is
interesting and I might use it in an other context in the future.
Thanks a lot
frank
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