[[Armbian newsletter] - Armbian Unified Kernel Initiative (AUKI): One Kernel to Power Them All]

Will it cook my breakfast too?

[Cubietruck Bluetooth with mainline kernel]

linux-sunxi@googlegroups.com is where they used to hang out but I don't know if they are still active there.

[Curietruck has only console through HDMI]

https://docs.armbian.com/Developer-Guide_Build-Preparation/

 

Once you have the code installed copy the above-linked patch to build/patch/kernel/archive/sunxi-something/ and do the compile.

[Curietruck has only console through HDMI]

There is a patch. It doesn't appear to have reached mainline yet. Perhaps it could be added to Armbian builds.

 

You probably want to go back to your original, working, kernel.

[cubieboard 3 rtc & nand]

I believe the nand is not supported. This is not a great loss as it is flaky and unreliable.

 

Not sure about the rtc. Do you have a battery?

[Why, when working as root do I still need sudo in front of some commands?]

This is likely a $PATH issue. usermod is in /usr/sbin which is probably not in your user's $PATH. If you su without adding - you do not get root's $PATH but with sudo you do.

[Armbian - what kind of error is this?]

That does look like a bad SD card. If another one works that would tend to confirm it.

[Armbian - what kind of error is this?]

I would guess you have fiddled with /etc/fstab or copied your root partition from elsewhere without fiddling with your /etc/fstab. Or maybe /boot/armbianEnv.txt

 

At any rate, the kernel is looking for a partition with UUID=0b77.... to mount at / but isn't finding it. So you need to either change the UUID it is looking for to the one your root partition has, or change your root partition to have the UUID it is looking for.

[How to program orangepi to auto restart?]

You could set up a cron job to reboot it every so often. Log in with PuTTY and type

sudo crontab -e

This will open the default crontab in an editor, probably nano. At the end of the file add the line

0 * * * * systemctl reboot

to reboot every hour on the hour. It needs to have a newline at the end, ie. a blank line at the bottom of the file.

man 5 crontab

will tell you more.

[Bluetooth on cubietruck doesn't work]

I haven't tried it lately but it didn't work last time I did. It looks like everything is in place but it does't actually work. My conclusion was it is a bug or at least a lack of support for the hardware.

[Problems with Cubietruck]

A better power supply might fix 1 and 2, they can go bad over time. 3 is a bug, sometimes you will get a connection, but mostly no carrier.

[wierd network problem w cubieboard2 allwinner A20]

CONFIG_GMAC_TX_DELAY seems to have been added to uboot in 2015 so the question is is it being set in armbian? I don't know if it can be set in bootEnv.txt or you have to set it at build time. I don't have access to my cubietruck right now...

[wierd network problem w cubieboard2 allwinner A20]

That looks like it is working to me. I have been fiddling with my cubietruck recently and I notice that it doesn't always connect to the network too, so maybe the problem has nothing to do with your carrier board.

[wierd network problem w cubieboard2 allwinner A20]

I have no clue, but maybe you will find one in the system logs.

[Cubieboard2 and armbian 6.1.33..]

I don't believe mainline kernels support the NAND, and aren't likely to as it is flaky.

I would try whatever the current image is and see what you get.

[Building Latest Armbian with customized packages & compilers]

Why not use libgpiod? Or try to port mraa?

[Unable to map network drive]

You are probably going to need a share name after the IP address smb://10.10.2.101/sharename

 

Running smbclient from the command line will give you more feedback and allow you to search for shares.

[Does not respond to hostname]

Normally your router will be responsible for translating the hostname to an IP address. So if it stops working you should look at your router's DHCP and DNS. Often both will be handled by dnsmasq. Rebooting your RockPro will renew its DHCP lease.

[UART to Ethernet]

I haven't seen modules like those before but I've used the typical 'terminal server' in a metal box. They work, the only caveat I would mention is that they can have old and non-standard web interfaces for configuration. Some of the cheaper ones I've used can only be accessed with Konqueror, not Firefox or other more common browsers. I don't know about VLANs.

[GPIO, I2C, SPI on Orange Pi 3 in C, how to start?]

I would look at mraa and upm.

[can't run kiauh.sh from putty, 'unknown' I need something more specific.]

You should ask on the kiauh github, I think the problem is kiauh not armbian.

[Cubieboard2 and armbian 6.1.33..]

The last time I tried using my Cubieboard 2 I wanted to use SPI and had some trouble. This was 2 or 3 years ago. The main reason I gave up though was the 2mm pin spacing. Maybe you found a suitable cable.

 

I would start by getting a current uboot on to it then watch it boot on the serial port. Inspect the default env, see what env file it is reading, check it is loading the overlays etc.

 

[Orange Pi 5 USB-TTL Output Garbled Characters]

I don't know how it works but in my experience it does. The Prolific page here says "Flexible signal level requirement on the RS-232 like serial port side also allows the PL-2303HX to connect directly to 5V, 3.3V, or 2.5V devices."

[Orange Pi 5 USB-TTL Output Garbled Characters]

I think the one you have will be fine. Just don't connect the red wire, even on boards which have 4 pins.

[Read-only /boot?]

If /boot is not already a separate partition I would think there is not much advantage in making it one. The main problem is machines that need a FAT formatted boot partition, as FAT is so fragile. I don't know if your Tinkerboard is one. If /boot is on an ext4 partition then fscking at boot is going to be adequate protection in most cases.

 

If you really want to mess with your partitions I think you will have to understand the boot process of your Tinkerboard in some detail. Does boot have to be the first partition? What filesystems are acceptable? What files need to be in it and what should they contain?