[Odroid C2 : no eth0 with latest image]

On 4/2/2021 at 9:47 PM, zimme said:

I just wanted to write an update on this issue as I've ran into it also, but I figured out a way to make it work.

My board was in a "broken" state where the network card wasn't working with any of the latest versions of Armbian using a newer u-boot like 21.04-rc3.
I compiled my own versions to test the latest edge and using u-boot 21.04-rc4, etc. but nothing worked.

I got it working by accident and I wasn't sure how but then I flashed the sdcard again with a different version and got into the broken state again.

This lead me down an evening of frantically testing a bunch of things and that's when I discovered a way to get out of this broken state with a newer
version of u-boot (21.04-rc or later).

Grab the latest stable image which uses u-boot 21.04-rc3, flash it to an sdcard and boot the board and wait 5 min or something to make sure the board has actually booted (I'm running headless so no monitor connected).
Once you're sure the board has booted, unplug the network cable and reconnect it. Then wait for a couple of minutes and then power cycle the board and that made the network card work again for me every time I
got into this broken state.

Hope it helps someone else and if not I guess that something else made my network card work again.

 

Hey Zimme, I had something similar. I have the NanoPi K2, and I had exactly this problem with the eth0. 

But, also playing around, I installed the Armbian_21.05.0-trunk.70_Nanopik2-s905_hirsute_edge_5.11.11.img , was not working as expected, and I decide to give it a try to Debian Armbian_21.02.3_Nanopik2-s905_buster_current_5.10.21.img , and suddendly, the eth0 was there, working almost perfect. I did some updates, and bla bla, and because I fucked up with users and other things, I decide to flash it again and start from scratch, now that the eth0 is working... and again... not working again. 

 

Now I'm trying what you said, also entering on armbian-config and updating the boot (not sure if this should be done there or not, I'm kind of newbie in Linux). But, still without good results. @zimme Could you please tell me which image you used to get it working again ? 

 

Thanks in advance. 

 

Also, if anyone can tell me how to push another u-boot that works on (with commands for dumb people like me), will be great !! I can do any test, but I need full instructions .. no idea how to change the u-boot, etc.

 

Muadiv.

[NanoPi K2 General Topics]

Hi everyone, I'm kind new on linux, but I have some idea. I was running before another linux distribution and ethernet was working. Today I changed the SD because last one was not working fine, and I decided to installed the new armbian images. 
Wifi worked perfect, but I can't get eth0 working. When I try to activate it from ntmui, is showing this: 

Some info here: 

 

nanopik2:~:% sudo ethtool eth0
Settings for eth0:
Cannot get device settings: Device or resource busy
Cannot get wake-on-lan settings: Device or resource busy
Cannot get message level: Device or resource busy
Cannot get link status: Device or resource busy
No data available

nanopik2:~:% dmesg | grep eth
[    0.000000] psci: probing for conduit method from DT.
[    2.372867] meson8b-dwmac c9410000.ethernet: IRQ eth_wake_irq not found
[    2.372879] meson8b-dwmac c9410000.ethernet: IRQ eth_lpi not found
[    2.372999] meson8b-dwmac c9410000.ethernet: PTP uses main clock
[    2.373799] meson8b-dwmac c9410000.ethernet: User ID: 0x11, Synopsys ID: 0x37
[    2.373814] meson8b-dwmac c9410000.ethernet:         DWMAC1000
[    2.373819] meson8b-dwmac c9410000.ethernet: DMA HW capability register supported
[    2.373823] meson8b-dwmac c9410000.ethernet: RX Checksum Offload Engine supported
[    2.373828] meson8b-dwmac c9410000.ethernet: COE Type 2
[    2.373832] meson8b-dwmac c9410000.ethernet: TX Checksum insertion supported
[    2.373835] meson8b-dwmac c9410000.ethernet: Wake-Up On Lan supported
[    2.373924] meson8b-dwmac c9410000.ethernet: Normal descriptors
[    2.373928] meson8b-dwmac c9410000.ethernet: Ring mode enabled
[    2.373933] meson8b-dwmac c9410000.ethernet: Enable RX Mitigation via HW Watchdog Timer
[    2.373943] meson8b-dwmac c9410000.ethernet: device MAC address ca:6e:40:ff:62:6b
[   14.681861] meson8b-dwmac c9410000.ethernet eth0: no phy at addr -1
[   14.682506] meson8b-dwmac c9410000.ethernet eth0: stmmac_open: Cannot attach to PHY (error: -19)


nanopik2:~:% cat /proc/device-tree/model
FriendlyARM NanoPi K2%  

nanopik2:~:% uname -a
Linux nanopik2 5.10.21-meson64 #21.02.3 SMP PREEMPT Mon Mar 8 07:22:00 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

Thanks in advance. 

[FriendlyELEC NanoPi K2 (S905)]

On 13/3/2018 at 8:54 AM, q-bert said:

I am interested in the K2 board but I need AES support for my use case. Could you please run the following command and post the result?

"openssl speed -elapsed -evp aes-256-cbc"

@nanopik2:~$ openssl speed -elapsed -evp aes-256-cbc
You have chosen to measure elapsed time instead of user CPU time.
Doing aes-256-cbc for 3s on 16 size blocks: 6920898 aes-256-cbc's in 3.00s
Doing aes-256-cbc for 3s on 64 size blocks: 1902190 aes-256-cbc's in 3.00s
Doing aes-256-cbc for 3s on 256 size blocks: 492602 aes-256-cbc's in 3.00s
Doing aes-256-cbc for 3s on 1024 size blocks: 124238 aes-256-cbc's in 3.00s
Doing aes-256-cbc for 3s on 8192 size blocks: 15578 aes-256-cbc's in 3.00s
OpenSSL 1.0.2g  1 Mar 2016
built on: reproducible build, date unspecified
options:bn(64,64) rc4(ptr,char) des(idx,cisc,16,int) aes(partial) blowfish(ptr)
compiler: cc -I. -I.. -I../include  -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DL_ENDIAN -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wa,--noexecstack -Wall -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM
The 'numbers' are in 1000s of bytes per second processed.
type             16 bytes     64 bytes    256 bytes   1024 bytes   8192 bytes
aes-256-cbc      36911.46k    40580.05k    42035.37k    42406.57k    42538.33k
 

[FriendlyELEC NanoPi K2 (S905)]

Yes, is exactly that one the one that I´m using. 

[FriendlyELEC NanoPi K2 (S905)]

That´s a pity. 

Anyway... I´m having another issue. I installed transmissionbt and I have a 1tb WD connected to download torrents (ext4). I was using with libreelec without any kind of issues, but when I change to this distro, and the download speed go over 1mb the system crash and I need to reboot manually disconnecting the power.  As I say before, I was downloading at 20mb with libre elec without issues, but now, I can´t. 

 

Any advice?

Thanks

Muadiv

[FriendlyELEC NanoPi K2 (S905)]

Hi, I´m using the last armbian image () and I see that the system is using Memory usage:  9 % of 844MB , when the device has 2gb of ram. How can I make the system use the full memory for the nanopik2 ?

 

Thanks in advance.

 

Muadiv.

[FriendlyELEC NanoPi K2 (S905)]

On 6/17/2017 at 10:23 PM, debianxfce said:

Add the line to /etc/modules:

wifi_dummy

 

Upgrade to Debian testing and install Wicd and remove networkmanager and systemd networking.service. Install correct firmware to /lib/firmware, use dmesg to see if firmware is missing  This is solution for Sunvell T95Z Plus Amlogic S912. Resolution can depend on the monitor, so there is no compatible resolution.

 

I will try today and let you know. Not sure how to do all of the steps (really new in this), but I will try. Any another advice will be great

Thanks !

[FriendlyELEC NanoPi K2 (S905)]

Hi ! What you did for have the wifi working? And how you can improve the resolution? I have only 1024*768.

 

Thanks in advance. 

 

Muadiv.