5.4.0-48-generic在我的服务器上，内核从 升级到5.4.0-52（和）后，板载 realtek 以太网卡无法被检测到5.4.0-51。但奇怪的是，在具有相同主板、网卡版本和 bios 版本的游戏机上，运行具有相同 ubuntu 内核 ( ) 的 KDE Neon 5.4.0-52-generic，它工作正常。
lshw：
description: Motherboard
product: X470 GAMING PLUS (MS-7B79)
vendor: Micro-Star International Co., Ltd
dmidecode -s bios 版本：A.50
lspci -nnv：
18:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 15)
Kernel driver in use: r8169
lsb_release：Ubuntu 20.04.1 LTS focal
uname：Linux 5.4.0-52-generic x86_64
dmesg |grep 8169（5.4.0-48）：
[ 0.000000] kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=b33c1eb8-59d7-479e-977c-cff95aff44e9 ro nomodeset
[ 0.000000] kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-48-generic root=UUID=b33c1eb8-59d7-479e-977c-cff95aff44e9 ro nomodeset
[ 0.703027] kernel: libphy: r8169: probed
[ 0.703613] kernel: r8169 0000:18:00.0 eth0: RTL8168h/8111h, 00:d8:61:10:37:54, XID 541, IRQ 65
[ 0.704030] kernel: r8169 0000:18:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
[ 0.739820] kernel: r8169 0000:18:00.0 p1p1: renamed from eth0
[ 7.140575] kernel: Generic FE-GE Realtek PHY r8169-1800:00: attached PHY driver [Generic FE-GE Realtek PHY] (mii_bus:phy_addr=r8169-1800:00, irq=IGNORE)
[ 7.253204] kernel: r8169 0000:18:00.0 p1p1: Link is Down
[ 10.768877] kernel: r8169 0000:18:00.0 p1p1: Link is Up - 1Gbps/Full - flow control rx/tx
dmesg |grep 8169（5.4.0-52）：
[ 0.000000] kernel: Command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic root=UUID=b33c1eb8-59d7-479e-977c-cff95aff44e9 ro nomodeset
[ 0.000000] kernel: Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.4.0-52-generic root=UUID=b33c1eb8-59d7-479e-977c-cff95aff44e9 ro nomodeset
[ 0.705941] kernel: libphy: r8169: probed
[ 0.706490] kernel: r8169 0000:18:00.0 eth0: RTL8168h/8111h, 00:d8:61:10:37:54, XID 541, IRQ 62
[ 0.706876] kernel: r8169 0000:18:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
这次realtekrmmod r8169 && modprobe r8169解决方法没有起作用。
我应该提交错误吗？或者发行版网络配置更改是否发生在 Ubuntu Server 中，但没有在 KDE Neon 中发生？
编辑：附加信息
如果我有机会再次关闭服务器，我也将尝试该r8168-dkms软件包并使用结果更新问题。
# modinfo r8169 | grep -i 10ec（5.4.0-48）：
alias: pci:v000010ECd00003000sv*sd*bc*sc*i*
alias: pci:v000010ECd00008125sv*sd*bc*sc*i*
alias: pci:v000010ECd00008169sv*sd*bc*sc*i*
alias: pci:v000010ECd00008168sv*sd*bc*sc*i*
alias: pci:v000010ECd00008167sv*sd*bc*sc*i*
alias: pci:v000010ECd00008161sv*sd*bc*sc*i*
alias: pci:v000010ECd00008136sv*sd*bc*sc*i*
alias: pci:v000010ECd00008129sv*sd*bc*sc*i*
alias: pci:v000010ECd00002600sv*sd*bc*sc*i*
alias: pci:v000010ECd00002502sv*sd*bc*sc*i*
sudo lshw -C network（5.4.0-48）：
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:18:00.0
logical name: p1p1
version: 15
serial: 00:d8:61:10:37:54
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 duplex=full firmware=rtl8168h-2_0.0.2 02/26/15 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
resources: irq:34 ioport:f000(size=256) memory:fe604000-fe604fff memory:fe600000-fe603fff
*-network:0
description: Ethernet interface
physical id: 1
logical name: vnet0
serial: fe:54:00:cb:bd:03
size: 10Mbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=yes multicast=yes port=twisted pair speed=10Mbit/s
*-network:1
description: Ethernet interface
physical id: 2
logical name: virbr0
serial: 52:54:00:b3:57:96
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=192.168.122.1 link=no multicast=yes
*-network:2
description: Ethernet interface
physical id: 3
logical name: br0
serial: 74:d4:35:53:6e:59
capabilities: ethernet physical
configuration: broadcast=yes driver=bridge driverversion=2.3 firmware=N/A ip=192.168.16.11 link=yes multicast=yes
*-network:3 DISABLED
description: Ethernet interface
physical id: 4
logical name: virbr0-nic
serial: 52:54:00:b3:57:96
size: 10Mbit/s
capabilities: ethernet physical
configuration: autonegotiation=off broadcast=yes driver=tun driverversion=1.6 duplex=full link=no multicast=yes port=twisted pair speed=10Mbit/s
cat /etc/network/interfaces（5.4.0-48）：
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
auto lo
iface lo inet loopback
#auto eth0
#iface eth0 inet static
# address 192.168.16.10
# netmask 255.255.255.0
# gateway 192.168.16.2
#auto p1p1
iface p1p1 inet manual
auto br0
iface br0 inet static
address 192.168.16.11
netmask 255.255.255.0
broadcast 192.168.16.255
network 192.168.16.0
gateway 192.168.16.2
bridge_ports p1p1
bridge_stp off
bridge_fd 3
bridge_maxwait 0
post-up ip link set br0 address 74:d4:35:53:6e:59
up route add -net 192.168.1.0/24 gw 192.168.20.80
iface br0:0 inet static
address 192.168.16.10
netmask 255.255.255.0
cat /etc/netplan/*.yaml（5.4.0-48）：No such file or directory
答案1
r8168
尝试r8168-dkms驱动程序。
BIOS
MSI X470 GAMING PLUS
您的 BIOS 版本为 A.50。
有较新的 BIOS 可用，版本 A.H0，日期为 2020 年 6 月 16 日，可以下载这里。
注意：确认我拥有适合您型号的正确网页。
注意：更新 BIOS 之前请做好备份。
答案2
解决了
此问题不再发生在 中5.4.0-65-generic。正如所怀疑的那样，这是内核或 r8168 模块的更改，可能已修复或恢复。
现在唯一的区别是设备eth0再次被调用，而不是p1p1