关于驱动管理

cutsiter

我在centos5.5中安装了一个usb网卡驱动，安装后重启机器，两个网卡就不能用了，提示mac地址与预想的不符。usb网卡的驱动还需要重新添加，我吧usb网卡的驱动模块和依赖模块都写成自动添加了，换了个usb口，就可以使用了，可是本机自身的网卡却还不能使用  ，使用dmesg |grep eth查看了下，提示如下
dmesg |grep eth
Driver 'sd' needs updating - please use bus_type methods
qf9700: Unknown symbol mii_ethtool_gset
qf9700: Unknown symbol mii_ethtool_gset
eth0: register 'qf9700' at usb-0000:00:04.0-3, QF9700 USB Ethernet, 00:e0:4c:53:44:58
eth1: link up, 100Mbps, full-duplex, lpa 0xFFFF
eth1: link up, 100Mbps, full-duplex, lpa 0xFFFF


/var/log/message |tail    日志显示

Dec 12 15:33:40 server01 last message repeated 2 times
Dec 12 15:33:40 server01 nm-system-settings: Loaded plugin ifcfg-rh: (c) 2007 - 2008 Red Hat, Inc.  To report bugs please use the NetworkManager mailing list.
Dec 12 15:33:40 server01 nm-system-settings:    ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth1 ...
Dec 12 15:33:40 server01 nm-system-settings:    ifcfg-rh:     read connection 'System eth1'
Dec 12 15:33:40 server01 nm-system-settings:    ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-eth0 ...
Dec 12 15:33:40 server01 nm-system-settings:    ifcfg-rh:     read connection 'System eth0'
Dec 12 15:33:40 server01 nm-system-settings:    ifcfg-rh: parsing /etc/sysconfig/network-scripts/ifcfg-lo ...
Dec 12 15:33:43 server01 pcscd: winscard.c:304:SCardConnect() Reader E-Gate 0 0 Not Found


cat  /etc/modprobe.conf 显示内容

alias eth0 forcedeth
alias scsi_hostadapter aic7xxx
alias scsi_hostadapter1 ahci
alias snd-card-0 snd-hda-intel
options snd-card-0 index=0
options snd-hda-intel index=0
remove snd-hda-intel { /usr/sbin/alsactl store 0 >/dev/null 2>&1 || : ; }; /sbin/modprobe -r --ignore-remove snd-hda-intel
alias eth1 qf9700

看了半天，找了些资料，也是没研究明白，希望有人遇到过或知道的，帮忙看看是怎么回事