网卡驱动

storyxc · Feb 19, 2024 · 1bd9630 · 1bd9630
1 parent 206bc7a
commit 1bd9630
Showing 1 changed file with 107 additions and 2 deletions.
diff --git a/docs/linux/env/Ubuntu-server.md b/docs/linux/env/Ubuntu-server.md
@@ -1,7 +1,5 @@
 # Ubuntu-server
 
-
-
 ## 关闭欢迎提示
 
 ` chmod -x /etc/update-motd.d/*`
@@ -37,3 +35,110 @@ partprobe #重新读取分区表并更新分区信息
 resize2fs /dev/sdXX #调整文件系统的大小
 ```
 
+## 内核模块加载
+
+> 最近打算给home server换一块瑞昱的2.5G网卡（8125b芯片），所以想提前安装下网卡驱动，执行官网那个autorun.sh脚本前也没仔细看，
+> 结果脚本直接把原来的8169网卡驱动卸载了，导致机器直接失联。还好脚本里有备份，所以只需要恢复回去就行了。
+> ```shell
+> #!/bin/sh
+> # SPDX-License-Identifier: GPL-2.0-only
+> 
+> # invoke insmod with all arguments we got
+> # and use a pathname, as insmod doesn't look in . by default
+> 
+> TARGET_PATH=$(find /lib/modules/$(uname -r)/kernel/drivers/net/ethernet -name realtek -type d)
+> if [ "$TARGET_PATH" = "" ]; then
+> TARGET_PATH=$(find /lib/modules/$(uname -r)/kernel/drivers/net -name realtek -type d)
+> fi
+> if [ "$TARGET_PATH" = "" ]; then
+> TARGET_PATH=/lib/modules/$(uname -r)/kernel/drivers/net
+> fi
+> echo
+> echo "Check old driver and unload it."
+> check=`lsmod | grep r8169`
+> if [ "$check" != "" ]; then
+> echo "rmmod r8169"
+> /sbin/rmmod r8169
+> fi
+> 
+> check=`lsmod | grep r8125`
+> if [ "$check" != "" ]; then
+> echo "rmmod r8125"
+> /sbin/rmmod r8125
+> fi
+> 
+> echo "Build the module and install"
+> echo "-------------------------------" >> log.txt
+> date 1>>log.txt
+> make $@ all 1>>log.txt || exit 1
+> module=`ls src/*.ko`
+> module=${module#src/}
+> module=${module%.ko}
+> 
+> if [ "$module" = "" ]; then
+> echo "No driver exists!!!"
+> exit 1
+> elif [ "$module" != "r8169" ]; then
+> if test -e $TARGET_PATH/r8169.ko ; then
+> echo "Backup r8169.ko"
+> if test -e $TARGET_PATH/r8169.bak ; then
+> i=0
+> while test -e $TARGET_PATH/r8169.bak$i
+> do
+> i=$(($i+1))
+> done
+> echo "rename r8169.ko to r8169.bak$i"
+> mv $TARGET_PATH/r8169.ko $TARGET_PATH/r8169.bak$i
+> else
+> echo "rename r8169.ko to r8169.bak"
+> mv $TARGET_PATH/r8169.ko $TARGET_PATH/r8169.bak
+> fi
+> fi
+> fi
+> 
+> echo "DEPMOD $(uname -r)"
+> depmod `uname -r`
+> echo "load module $module"
+> modprobe $module
+> 
+> is_update_initramfs=n
+> distrib_list="ubuntu debian"
+> 
+> if [ -r /etc/debian_version ]; then
+> is_update_initramfs=y
+> elif [ -r /etc/lsb-release ]; then
+> for distrib in $distrib_list
+> do
+> /bin/grep -i "$distrib" /etc/lsb-release 2>&1 /dev/null && \
+> is_update_initramfs=y && break
+> done
+> fi
+> 
+> if [ "$is_update_initramfs" = "y" ]; then
+> if which update-initramfs >/dev/null ; then
+> echo "Updating initramfs. Please wait."
+> update-initramfs -u -k $(uname -r)
+> else
+> echo "update-initramfs: command not found"
+> exit 1
+> fi
+> fi
+> 
+> echo "Completed."
+> exit 0
+> ```
+
+```shell
+# 进入网卡驱动目录
+cd /lib/modules/$(uname -r)//kernel/drivers/net/ethernet/realtek
+# 恢复备份
+mv r8169.bak r8169.ko
+# 加载模块
+insmod r8169.ko
+# 验证是否加载
+lsmod | grep r8169
+# 更新模块依赖关系
+depmod `uname -r`
+# 更新initramfs
+update-initramfs -u -k $(uname -r)
+```