Setting up network on 'vanilla' bullseye

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Setting up network on 'vanilla' bullseye

Postby otalado » 2021-02-16 20:25

I downloaded weekly Debian 11 net install ISO for ARM64 (15th FEB 2021-02) and installed it on my Raspberry Pi 4. During install, the network was not recognized, so I continued without it. After the install was finished the network did not work. When I checked with ip a command, I found an ethernet interface, but the status was DOWN. I set it UP with the ip link set dev xxzzyy up. At that point, I should be able to ping the network by IP Address, yet for any address which I try to ping, I am getting the message: Network is unreachable. Command ip neighbor show shows nothing.

At that point, my limited knowledge is exhausted. I was searching the forums, all hits I managed to get were either obsolete or irrelevant. So, I'll appreciate any suggestions or links with some explanation, ...
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Re: Setting up network on 'vanilla' bullseye

Postby Hallvor » 2021-02-16 21:24

What chipset is in it? Post the output of

Code: Select all
$ lspci | grep -i wireless
Lenovo ThinkPad T440S, Intel Core i7-4600U CPU @ 2.10GHz, 8 GB RAM, 256 GB SSD, Debian Buster (KDE)
Lenovo ThinkPad X240, Intel Core i5-4300U CPU @ 2.90GHz, 8 GB RAM, 120 GB SSD, Debian Buster (KDE)
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Re: Setting up network on 'vanilla' bullseye

Postby arochester » 2021-02-16 21:45

Or

Code: Select all
$ lspci |grep Network
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Re: Setting up network on 'vanilla' bullseye

Postby otalado » 2021-02-17 03:37

@Hallvor, @arochester: lspci command you asked me to try produces no output in both your cases. If I read the man page for lspci command correctly, data is stored in /usr/share/hwdata/pci.ids. Unfortunately, there is no directory /usr/share/hwdata.
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Re: Setting up network on 'vanilla' bullseye

Postby Hallvor » 2021-02-17 05:40

Lenovo ThinkPad T440S, Intel Core i7-4600U CPU @ 2.10GHz, 8 GB RAM, 256 GB SSD, Debian Buster (KDE)
Lenovo ThinkPad X240, Intel Core i5-4300U CPU @ 2.90GHz, 8 GB RAM, 120 GB SSD, Debian Buster (KDE)
User avatar
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Re: Setting up network on 'vanilla' bullseye

Postby p.H » 2021-02-17 08:28

otalado wrote: I found an ethernet interface, but the status was DOWN. I set it UP with the ip link set dev xxzzyy up. At that point, I should be able to ping the network by IP Address

No. The interface is UP but is not configured with any IP addresse and route.
otalado wrote:I am getting the message: Network is unreachable

As expected.
Code: Select all
ip addr add ...
ip route add ...

or, if you have a DHCP server,
Code: Select all
dhclient xxzzyy

For persistent configuration, consider using /etc/network/interfaces or any other network manager.
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Re: Setting up network on 'vanilla' bullseye

Postby otalado » 2021-02-17 13:18

@p.H
Sigh! Now, that you gave me an answer, it seems pretty obvious. As they say, everyone has 20/20 hind vision :(
Let's hope I won't forget this one (too soon).
Many thanks!
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