新做的一块板子,程序是做到SD卡里面,全部自动烧录的,,包括Uboot,Kernel,Filesystem;所以程序是一样的,
现在问题是,网卡启动不了:
查看Uboot的参数发现:ethaddr=00:00:00:00:00:00
然后进入系统后,
ifconfig只有
lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
但是我ifconfig -a
却是有:
~ # ifconfigeth0 Link encap:Ethernet HWaddr 00:00:00:00:00:00 inet addr:192.168.2.10 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:3174 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:201028 (196.3 KiB) TX bytes:1890 (1.8 KiB) Interrupt:5 Base address:0x4000lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
没有发现eth0网卡,于是手动启动网卡,ifup eth0
提示:
Ignoring unknown interface eth0
解决方法:
在/etc/network/interfaces添加auto eth0iface eth0 inet dhcp
然后我重新启动网卡:/etc/init.d/networking restart
结果卡死在:
udhcpc: sendto: Network is down
然后我重启系统,还是卡死在:
udhcpc: sendto: Network is down
仔细一想,这个MAC地址不是自动分配的吗?为什么没有呢,
不管那么多,我在UBOOT里面手动给分配了一个MAC地址,再重启,问题就这么解决了,也可以下载程序了,但是我也不知道为什么MAC没有自动分配;
~ # ifconfigeth0 Link encap:Ethernet HWaddr 00:00:AA:BB:CC:DD inet addr:192.168.2.10 Bcast:192.168.2.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:367 errors:0 dropped:0 overruns:0 frame:0 TX packets:5 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:23279 (22.7 KiB) TX bytes:1890 (1.8 KiB) Interrupt:5 Base address:0x4000lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
每个人在他的人生发轫之初,总有一段时光,