You need to either remove the specification of the MAC in ifcfg-eth0 -- or specify it in the z/VM directory entry for the guest so that it matches. It's likely best to just remove it and let it default unless you have a real need to specify it.
Scott Rohling On Mon, Jun 27, 2011 at 1:25 PM, Dave Jones <[email protected]> wrote: > Hi, gang. > > I've have been tasked with changing the network configuration for a > RedHat EL 5.6 s390x guest from employing layer 3 (tcpip) connectivity to > a vswitch, to using layer 2 (ethernet) on another vswitch. I've updated > the ifcfg-eth0 configuration file with the proper parameters (I think), > but a boot time Linux complains that: > > "Device eth0 has different MAC address than expected" > > and doesn't bring up the interface. > > I can configure eth0 manually by creating the device in > /sys/bus/ccwgroup/drivers/qeth with: > > echo 0.0.0110,0.0.0101,0.0.0102 > group > > and then > > echo 1 > 0.0.0100/layer2 > echo 1 > 0.0.0100/online > > Here is what is in the ifcfg-eth0 file: > > # IBM QETH > DEVICE=eth0 > BOOTPROTO=static > VSWITCH=1 > OPTION=(layer2=1) > IPADDR=xxx.yyy.www.zzz > NETMASK=255.255.255.0 > NETTYPE=qeth > TYPE=Ehternet > ONBOOT=yes > HWADDR=02:00:00:00:00:07 > SUBCHANNELS=0.0.0100,0.0.0101,0.0.0102 > > > Thanks and have a good one. > > -- > Dave Jones > V/Soft Software > www.vsoft-software.com > Houston, TX > 281.578.7544 > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or > visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
