Whenever I reboot a CentOS Hyper-V VM, eth0
does not start automatically. All I need to do is perform ifup eth0
and all is fixed, but that isn't feasible from ssh! I am starting in runlevel 3.
[root@localhost ~]# cat /etc/*release*
CentOS release 6.2 (Final)
After I perform ifup eth0
on the console:
[root@localhost ~]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:15:5D:2B:2B:07
inet addr:10.10.0.3 Bcast:10.10.0.255 Mask:255.255.255.0
inet6 addr: fe80::215:5dff:fe2b:2b07/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:34 errors:0 dropped:0 overruns:0 frame:0
TX packets:49 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4656 (4.5 KiB) TX bytes:6399 (6.2 KiB)
Interrupt:9 Base address:0xa000
[root@localhost ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
IPADDR=10.10.0.3
NETMASK=255.255.255.0
GATEWAY=10.10.0.1
USERCTL=no
ONBOOT=yes
[root@localhost ~]# chkconfig --list | grep network
network 0:off 1:off 2:on 3:on 4:on 5:on 6:off
After trying to turn off Network Manager
[root@localhost ~]# chkconfig NetworkManager off
error reading information on service NetworkManager: No such file or directory
[root@localhost ~]# service NetworkManager status
NetworkManager: unrecognized service
The most recent clean boot
[root@localhost ~]# grep eth0 /var/log/messages
Jul 7 02:12:44 localhost kernel: eth0: Digital DS21140 Tulip rev 32 at MMIO 0xfebff000, 00:15:5d:2b:2b:07, IRQ 9.
Jul 7 02:13:15 localhost kernel: eth0: Using EEPROM-set media 100baseTx-FDX.
[root@localhost ~]# dmesg | grep eth0
eth0: Digital DS21140 Tulip rev 32 at MMIO 0xfebff000, 00:15:5d:2b:2b:07, IRQ 9.
eth0: Using EEPROM-set media 100baseTx-FDX.
eth0: no IPv6 routers present
The only problems I have EVER seen, is when I do the command of ifup eth0
I get the following errors, but eth0
still gets started:
[root@localhost ~]# ifup eth0
/etc/sysconfig/network-scripts/ifup-ipv6: line 56: /etc/sysconfig/network: No such file or directory
/etc/sysconfig/network-scripts/ifup-aliases: line 125: /etc/sysconfig/network: No such file or directory
Best Answer
Hmm. From your last message, look for the
/etc/sysconfig/network
file.I have:
You can also have (on my CentOS 5 box):
Documentation is here (at least for 5, which should be very similar)
I'm not sure what the default is for the "NETWORKING" setting. It's possible it's "no" and that's why it's not starting on boot.