Hardware - Support > Network

No network device after latest update

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jacmoe:
Today, upon rebooting after an update, Linux Lite informed me that there were no network devices available.
Rebooting into Linux 5.4 solved that problem.
Are there any known issues with Linux 5.8?

Not really sure where to put questions like this.
I probably should have put it in the Bugs forum?
Because it is a bug.
Windows works, of course, so it must be something related to kernels and drivers and services/daemons.

Would be interesting to see if this affects others, and not just me (which would be typical) :)

EDIT:
The device is a bog-standard Realtek RTL8111 PCI Express Gigabit Ethernet Controller, integrated into my motherboard. My machine is a stationary PC, no wifi, and relatively recent.
I don't mind booting into 5.4, but I hope this gets fixed in 5.8.

Here is the output of
--- Code: ---lshw -c network
--- End code ---
:


--- Code: ---  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: [email protected]:1e:00.0
       logical name: enp30s0
       version: 15
       serial: 30:9c:23:21:e1:27
       size: 100Mbit/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 ip=192.168.0.102 latency=0 link=yes multicast=yes port=MII speed=100Mbit/s
       resources: irq:33 ioport:f000(size=256) memory:fd504000-fd504fff memory:fd500000-fd503fff

--- End code ---

EDIT_AGAIN:

According to this topic https://askubuntu.com/questions/1291313/intel-8260-wireless-adapter-unclaimed-on-20-10-groovy-kernel-5-8-0-26-generic there was some work done that could cause problems with devices.
And another topic also suggests installing the linux-generic package - https://askubuntu.com/questions/1307447/network-not-working-updating-to-kernel-5-8-ubuntu-20-04 - but it is already installed, although I noticed that the package depends on Linux 5.4 and not 5.8. I am not sure if that's a problem.
I will run the lshw command on my failed login, but it says UNCLAIMED for the device:


--- Code: ---  *-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]:1e:00.0
       version: 15
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix bus_master cap_list
       configuration: latency=0
       resources: ioport:f000(size=256) memory:fd504000-fd504fff memory:fd500000-fd503fff

--- End code ---

I then went to reinstall the linux-modules package for 5.8.0-38, and it complained that the corresponding linux-headers package for 5.8.0-38 wasn't installed, so I installed that and reinstalled. But the network card is still unclaimed on 5.8.0-38.

I am now going to boot into Windows and get work done, but it would be nice to see an update soon so that I can enjoy Linux :)


EDIT with the solution :

I ran
--- Code: ---sudo apt clean && sudo apt install --reinstall linux-modules-extra-5.8.0-38-generic
--- End code ---
and the network device worked in 5.8.0-38 after a reboot, hurray! :D
I have no idea if I had the modules-extra package installed, but it worked. (Or maybe threatening to boot into Windows worked? :p )

So, this is not a fault of my own, but a glitch in the update procedure. My Linux Lite installation is only a couple of months old, so I am not to blame for this.

I hope that this information will be useful for someone else experiencing the problem. ;)

Jerry:
Was there a reason why you were using the 5.8 kernel?

Sent from my mobile phone using Tapatalk

jacmoe:
Well, I merely let Linux Lite do it's thing, and I haven't really paid any attention to what version of the kernel it wants to install when I run the Install Updates tool :)
And I have no real interest in messing around with bleeding edge Linux kernels. I just want a stable box.
Which Linux Lite really has been for me, until now.
Great work, guys!

When I initially installed Linux Lite, I downloaded the default ISO that appears in the download section. And I didn't mess with anything kernel related in the package manager.

Are you telling me that all of you other guys are on kernel 5.4 ?  :o

Jerry:
The 5.8 kernel can only be installed deliberately. What is the output of :


--- Code: ---uname -a
--- End code ---


Sent from my mobile phone using Tapatalk


jacmoe:

--- Code: ---Linux jacmoe-MS-7B07 5.8.0-38-generic #43~20.04.1-Ubuntu SMP Tue Jan 12 16:39:47 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
--- End code ---

I will monitor my laptop which I also installed Linux Lite on. Right now it is updating to 5.4.0-62 . . .

Very strange, because I don't usually deliberately install a specific Linux kernel :)

Fresh install on December 6th (IIRC) last year, so not even two months. But it has performed excellently and not been giving me any trouble, until now.

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