I have a situation where postbootscripts do not run. I traced the problem back
to "/opt/xcat/xcatinstallpost" script which is called
by the "/etc/init.d/xcatpostinit1" service after the first boot.
The trouble is with this section of code:
MACADDR=`grep MACADDRESS= /xcatpost/mypostscript.post |awk -F = '{print
$2}'|sed s/\'//g`
INSTALLNIC=`ip -o link|grep -i $MACADDR|awk '{print $2}'|sed s/://`
while true; do
#scan the nics with the specified mac address
#there will be multiple nic names for a mac address when the network bridge
exists
for nic in $INSTALLNIC ;do
#check whether the nic is configured and linkup
ip -4 --oneline addr show dev $nic |grep inet >/dev/null && NETUP=1 &&
break
done
#nic is configured,terminate scan...
[ $NETUP -ne 0 ] && break;
RETRY=$[ $RETRY + 1 ]
if [ $RETRY -eq 90 ];then
#timeout, complain and exit
msgutil_r "$MASTER_IP" "err" `date`" xcatinstallpost: Network not
configured, please check..." "/var/log/xcat/xcat.log"
exit 1
fi
#sleep sometime before the next scan
sleep 2
done
The issue that I have is that the NIC that I use to install the machines is not
the primary NIC that is used when the node reboots.
That's because the NIC used during the PXE/Anaconda stage cannot be part of a
bonded connection, so we have to run a separate single
link for imaging. When the node runs normally, we want to use the bonded
connections. In other words, the node would have three
Ethernet connections - two 10Gb connections (which would be bonded) and one 1Gb
standard Ethernet connection.
Normally I set the "installnic" to "mac" in the noderes table and I set "mac"
to the mac of the nic that is used to PXE the device.
The code above insists that the link associated with the MAC used to PXE the
node be up, and will fail if not. That's not reasonable
after the node reboots.
This method worked well with xCAT v2.8.5. Now I'm using v2.12.1 and this method
doesn't work.
Is there a better way to handle this issue with bonded Ethernet and PXE booting?
This is what the man page for 'noderes' says about 'installnic':
The network adapter on the node that will be used for OS deployment, the
installnic can be set to the network adapter name or the
mac address or the keyword "mac" which means that the network interface
specified by the mac address in the mac table will be used.
If not set, primarynic will be used. If primarynic is not set too, the keyword
"mac" will be used as default.
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