[K12OSN] You can't have LTSP and network too

Mike Rathburn stretchem at gmail.com
Tue Nov 18 14:46:27 UTC 2008


I've run into the same problem, although I wasn't even able to get a
1420 PXE to get a DHCP assignment.  This is related to my earlier post
"New Fedora9 Installation and Networking".  I wanted to go through a
reinstall to make sure I wasn't losing my mind.

Installed F9 with two interfaces - eth0 set to DHCP, eth1 set to
static.  Went through the instructions as posted in the wikki, but
here's an overview of the steps done for clarity:

After F9 install with reboot, eth0 got DHCP address 192.168.1.117,
eth1 is statically set to 192.168.1.25.  NetworkManager is on, but the
eth1 network interface was inactive.  Networking was only working
through eth0.  Had to do 'chkconfig network on' to get the two network
interfaces to activate on startup.  Rebooted.  Networking is working
fine for both interfaces.

yum install ltsp-server
Rebooted.
yum install ltsp-vmclient
Uncommented the option_cache_value line in /etc/ltsp/ltsp-build-client.conf
echo "/opt/ltsp *(ro,async,no_root_squash)" >> /etc/exports
ifup ltspbr0
chkconfig network on
Rebooted.
for service in xinetd ltsp-dhcpd rpcbind nfs sshd; do chkconfig
$service on; service $service restart; done
for server in ldminfod nbdrootd nbdswapd tftp; do chkconfig $server on; done
ltsp-build-client
Rebooted.
Verifed dhcp is running via pgrep dhcpd
Stopped the firewall via service iptables stop
Added BRIDGE=ltspbr0 to /etc/sysconfig/network-scripts/ifcfg-eth0
Did service network restart
**** LOST NETWORK CONNECTION! ****

Now I can't just paste the output of ifconfig because I don't have a
network connection.  However, ifconfig shows that eth0 doesn't have
any address info, so it's inactive.  eth1 has inet address of
192.168.1.25/255.255.255.0, as it should.  ltspbr0 has inet address of
172.31.100.254/255.255.255.0, bound to the hardware address of eth0.

I did chkconfig --list network, and 2,3,4,5 are on as they should be.

My route -n shows:

Dest                 GW                 Mask                   Iface
192.168.1.0       0.0.0.0            255.255.255.0       eth1
172.31.100.0     0.0.0.0            255.255.255.0       ltspbr0
169.254.0.0       0.0.0.0            255.255.0.0          ltspbr0
0.0.0.0              192.168.1.1     0.0.0.0                 eth1

ifcfg-eth0 has:
DEVICE=eth0
BOOTPROTO=dhcp
HWADDR=00:1a:a0:33:03:60
ONBOOT=yes
DHCP_HOSTNAME=ltsp.childrenfirstflorida.org
DNS1=192.168.1.1
SEARCH='childrenfirstflorida.org'
NM_CONTROLLED=no
TYPE=Ethernet
BRIDGE=ltspbr0

ifcfg-eth1 has:
DEVICE=eth1
BOOTPROTO=none
BROADCAST=192.168.1.255
HWADDR=00:14:d1:15:4e:39
IPADDR=192.168.1.25
IPV6INIT=yes
IPV6_AUTOCONF=yes
NETMASK=255.255.255.0
NETWORK=192.168.1.0
ONBOOT=yes
DNS1=192.168.1.1
SEARCH='childrenfirstflorida.org'
NM_CONTROLLED=no
GATEWAY=192.168.1.1
TYPE=Ethernet
USERCTL=no
PEERDNS=yes

ifcfg-ltspbr0 has:
DEVICE=ltspbr0
TYPE=Bridge
ONBOOT=yes
BOOTPROTO=static
STP=off
DELAY=0.1
USERCTL=no
IPV6INIT=no
PEERDNS=yes
NETMASK=255.255.255.0
IPADDR=172.31.100.254
ARP=yes

Now, cruising on into the GUI, System -> Administration -> Network is
showing eth0 inactive, eth1 and ltspbr0 both active.  The
NetworkManager icon is showing no connections to manage.  Services ->
network is enabled and started.  dhcpd is shown as disabled, but is
started.  iptables is enabled, but is stopped.  ltsp-dhcpd is enabled
and started.

So, again, what have I missed?

Thanks!




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