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Ich habe 20.04 Lts sauber installiert, aber jetzt habe ich kein Netzwerk?

Ich hatte 16.04 LTS (32 Bit)
und entschied mich für ein Upgrade auf 20.04 LTS. Ich habe das Laufwerk mit 16.04 darauf entfernt und eine neue SSD installiert. Ich habe per DVD von der heruntergeladenen ISO installiert. Sobald es installiert ist und ich neu starte, gibt es kein Netzwerk. Der Ethernet-Controller wird nicht unter den Netzwerkeinstellungen angezeigt.
Wenn ich sudo lshw -C network ausführe, erhalte ich:

*-network UNCLAIMED
     description: Ethernet controller
     product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
     vendor: Realtek Semiconductor Co., Ltd.
     physical id: 0
     bus info: [email protected]:03:00.0
     version: 3
     width: 64 bits
     clock: 33MHz
     capabilities: pm msi pciexpress msix vpd cap_list
     configuration: latency=0
     resources: ioport:ce00(size=256) memory:fdfff000-fdffffff memory:fdff8000-fdffbfff memory:fd400000-fd41ffff

Das Kabel ist eingesteckt und sowohl der Adapter am PC als auch der Router leuchten.
Ich habe versucht, es neu zu installieren, aber das gleiche Problem. Mit 16.04 hat es gut funktioniert und die einzigen Unterschiede sind die neue SSD und das neue Betriebssystem.
Ich bin mit Linux nicht sehr vertraut – nur ein Benutzer.
Jede Hilfe wäre sehr willkommen. Danke.

$ lsmod
Module                  Size  Used by
nls_iso8859_1          16384  1
snd_hda_codec_realtek   118784  1
snd_hda_codec_generic    81920  1 snd_hda_codec_realtek
ledtrig_audio          16384  2 snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_codec_hdmi     61440  1
snd_usb_audio         258048  1
snd_usbmidi_lib        36864  1 snd_usb_audio
snd_hda_intel          53248  4
snd_intel_dspcfg       24576  1 snd_hda_intel
snd_hda_codec         131072  4 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec_realtek
snd_hda_core           90112  5 snd_hda_codec_generic,snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec,snd_hda_codec_realtek
snd_hwdep              20480  2 snd_usb_audio,snd_hda_codec
edac_mce_amd           32768  0
uvcvideo               98304  0
videobuf2_vmalloc      20480  1 uvcvideo
joydev                 24576  0
input_leds             16384  0
snd_seq_midi           20480  0
videobuf2_memops       20480  1 videobuf2_vmalloc
snd_seq_midi_event     16384  1 snd_seq_midi
kvm_amd                98304  0
videobuf2_v4l2         24576  1 uvcvideo
snd_rawmidi            36864  2 snd_seq_midi,snd_usbmidi_lib
videobuf2_common       49152  2 videobuf2_v4l2,uvcvideo
ccp                    86016  1 kvm_amd
videodev              225280  3 videobuf2_v4l2,uvcvideo,videobuf2_common
kvm                   663552  1 kvm_amd
radeon               1474560  10
mc                     53248  5 videodev,snd_usb_audio,videobuf2_v4l2,uvcvideo,videobuf2_common
snd_seq                69632  2 snd_seq_midi,snd_seq_midi_event
snd_seq_device         16384  3 snd_seq,snd_seq_midi,snd_rawmidi
snd_pcm               106496  5 snd_hda_codec_hdmi,snd_hda_intel,snd_usb_audio,snd_hda_codec,snd_hda_core
ttm                   106496  1 radeon
snd_timer              36864  2 snd_seq,snd_pcm
wmi_bmof               16384  0
drm_kms_helper        184320  1 radeon
serio_raw              20480  0
i2c_algo_bit           16384  1 radeon
fb_sys_fops            16384  1 drm_kms_helper
k10temp                16384  0
snd                    90112  23 snd_hda_codec_generic,snd_seq,snd_seq_device,snd_hda_codec_hdmi,snd_hwdep,snd_hda_intel,snd_usb_audio,snd_usbmidi_lib,snd_hda_codec,snd_hda_codec_realtek,snd_timer,snd_pcm,snd_rawmidi
syscopyarea            16384  1 drm_kms_helper
soundcore              16384  1 snd
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
mac_hid                16384  0
sch_fq_codel           20480  1
parport_pc             40960  0
ppdev                  24576  0
lp                     20480  0
parport                53248  3 parport_pc,lp,ppdev
drm                   491520  6 drm_kms_helper,radeon,ttm
ip_tables              32768  0
x_tables               40960  1 ip_tables
autofs4                45056  2
uas                    28672  0
usb_storage            77824  1 uas
hid_logitech_hidpp     40960  0
hid_logitech_dj        24576  0
hid_generic            16384  0
usbhid                 57344  1 hid_logitech_dj
hid                   131072  4 usbhid,hid_generic,hid_logitech_dj,hid_logitech_hidpp
pata_acpi              16384  0
pata_jmicron           16384  0
firewire_ohci          40960  0
i2c_piix4              28672  0
firewire_core          65536  1 firewire_ohci
crc_itu_t              16384  1 firewire_core
realtek                24576  0
ahci                   40960  2
pata_atiixp            16384  0
libahci                32768  1 ahci
wmi                    32768  1 wmi_bmof
floppy                 81920  0

 $ dmesg | egrep -i 'eth|net|r816|error|fail'
[    0.193357] NET: Registered protocol family 16
[    0.193357] audit: initializing netlink subsys (disabled)
[    0.206387] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206392] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206395] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206398] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206407] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206410] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206413] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206415] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206424] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206426] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206429] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206432] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206440] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206443] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206446] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206449] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206457] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206460] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206463] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206466] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206474] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206477] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206480] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206483] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206491] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206494] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206497] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206500] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206508] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206511] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206514] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206516] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206525] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.206528] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206530] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206533] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206541] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKA (20190816/dspkginit-438)
[    0.206544] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKB (20190816/dspkginit-438)
[    0.206547] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKC (20190816/dspkginit-438)
[    0.206550] ACPI Error: AE_NOT_FOUND, While resolving a named reference package element - LNKD (20190816/dspkginit-438)
[    0.226588] NetLabel: Initializing
[    0.226589] NetLabel:  domain hash size = 128
[    0.226589] NetLabel:  protocols = UNLABELED CIPSOv4 CALIPSO
[    0.226602] NetLabel:  unlabeled traffic allowed by default
[    0.248324] NET: Registered protocol family 2
[    0.249337] NET: Registered protocol family 1
[    0.249341] NET: Registered protocol family 44
[    0.873227] i8042: Failed to disable AUX port, but continuing anyway... Is this a SiS?
[    1.129168] drop_monitor: Initializing network drop monitor service
[    1.129307] NET: Registered protocol family 10
[    1.136569] NET: Registered protocol family 17
[    1.136850] RAS: Correctable Errors collector initialized.
[    1.243699] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[    1.246892] libphy: r8169: probed
[    1.246894] r8169 0000:03:00.0: realtek.ko not loaded, maybe it needs to be added to initramfs?
[    1.272769] r8169: probe of 0000:03:00.0 failed with error -49
[    3.653707] EXT4-fs (sda5): re-mounted. Opts: errors=remount-ro
[    5.357098] audit: type=1400 audit(1590039568.703:12): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=595 comm="apparmor_parser"
[    5.357579] audit: type=1400 audit(1590039568.703:13): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=595 comm="apparmor_parser"
[   98.557314] audit: type=1107 audit(1590039661.903:1562): pid=674 uid=103 auid=4294967295 ses=4294967295 msg='apparmor="DENIED" operation="dbus_method_call"  bus="system" path="/org/freedesktop/NetworkManager" interface="org.freedesktop.DBus.Properties" member="GetAll" mask="send" name=":1.13" pid=3278 label="snap.snap-store.ubuntu-software" peer_pid=675 peer_label="unconfined"
[12157.551604] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
[12157.554165] libphy: r8169: probed
[12157.554167] r8169 0000:03:00.0: realtek.ko not loaded, maybe it needs to be added to initramfs?
[12157.572403] r8169: probe of 0000:03:00.0 failed with error -49
[13125.601531] blk_update_request: I/O error, dev sdd, sector 264544 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[13125.601542] Buffer I/O error on dev sdd2, logical block 44, lost async page write
[13125.601562] blk_update_request: I/O error, dev sdd, sector 6555656 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
[13125.601567] Buffer I/O error on dev sdd2, logical block 786433, lost async page write
[13125.872264] sd 9:0:0:0: [sdd] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[13202.988262] sd 9:0:0:0: [sdd] Synchronize Cache(10) failed: Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK


$ ifconfig -a

Command 'ifconfig' not found, but can be installed with:

sudo apt install net-tools

$ sudo apt install net-tools
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package net-tools

Akzeptierte Antwort:

Der r8168-Treiber ist in den Ubuntu-Repositories enthalten, sodass Sie ihn nicht selbst kompilieren müssen, also versuchen Sie zuerst Folgendes:

sudo rmmod r8169 r8168
sudo apt-get purge r8168-dkms
sudo modprobe r8169
dmesg | egrep -i 'eth|net|r816'
ifconfig -a

Wenn keine Fehler von modprobe gemeldet oder in dmesg gefunden wurden, sollten Sie ein Ethernet-Gerät in der ifconfig-Ausgabe sehen (zusätzlich zum lo-Gerät).

Verwandt:Mounten Sie verschlüsselte Volumes von der Befehlszeile in Ubuntu?

Wenn nicht, versuchen Sie es mit dem r8168-Treiber:

sudo rmmod r8169
sudo apt-get install r8168-dkms
sudo modprobe r8168
dmesg | egrep -i 'eth|net|r816'
ifconfig -a

Wenn Sie immer noch kein Ethernet-Gerät erhalten, fügen Sie die Ausgabe von:

hinzu
find /lib -name r816\*
lsmod
dmesg | egrep -i 'eth|net|r816|error|fail'
ifconfig -a

zur Ausgangsfrage.


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