Raspberry Pi Forums

jj_0

and /etc/fstab on USB HDD to be: proc /proc proc defaults 0 0 PARTUUID=/dev/sda1 /boot vfat defaults 0 2 PARTUUID=/dev/sda2 / ext4 defaults,noatime 0 1 then my RPi is unable to boot. Without monitor, I cannot see any log. Please suggest how should I fix this. As per the post above PARTUUID in fstab...

jj_0

I've run the RPI4 from a laptop's USB 3 port to the RPI4's USB 2.0 Type C port with the serial and ethernet gadget mode enabled over the USB link. This was about 2 months ago so not with the current latest firmware. However the Pi had nothing else connected so would not have needed much power. But o...

jj_0

Hello, I would also like to switch the direction of the pi 4 OTG port (as part of a test setup). Ideally in host mode it could read/write a USB drive, and in device mode it would appear as 3 peripherals (usb-uart, usb-drive, usb-ethernet) The command to switch the OTG port to host mode worked when ...

jj_0

What about systemd-timesyncd, the alternative to ntp?

jj_0

There are a few well-known algorithms to calculate shortest-path between two points, Dijkstra is the most famous. There's also Floyd-Warshall that calculates shortest-path between all nodes.

jj_0

Add

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search .local

to /etc/resolv.conf, or maybe to a new.conf file in e.g.

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/usr/lib/systemd/resolved.conf.d/

. More info at https://www.freedesktop.org/software/sy ... .conf.html.

jj_0

It can easily be done, you have to use a kernel with built-in initrd (= ramdisk) boot. This is a common boot method that you can find lots of information abiut. I'm not sure if the Pi's kernel uses this already so you might have to recompile the kernel. In the initrd 'init' script you then add stuff...

jj_0

That's not really an Raspberry Pi question, but rather an nginx question. If you google something like 'nginx subdomain configuration' you should get lots of info, like https://dev.to/on_stash/configure-nginx-to-host-multiple-subdomains-2g0b. It looks relatively easy to configure except maybe the DN...

jj_0

JumpZero, Thanks for posting this. I was doing another stuff at 00:00 and after the logrotate the system either unsuccessfully didn't make a WiFi connection or stopped doing my main cron job. Tried to find where one could change the time unsuccessfully, so followed the suggestion of moving /etc/cro...

jj_0

No Pi required if you already have a PC with each TV. You can use a USB infrared transmitter or possibly even a infrared transmitter connected to the sound out and use that in combination with WinLirc to switch on the TV. I hope your TV's have a different 'on' and 'off' infrared command though, and ...

jj_0

Glad you got it to work, and thanks for reporting back.

jj_0

To test changes to /etc/fstab, unmount (if mounted) the newly added drive an then execute: mount --all This helps to see if there are any errors. However normally if the system can't mount an fstab entry during bootup you will be dumped into a maintenance console so your error message might point to...

jj_0

Here's a 3B that is still in stock at the time of writing.

jj_0

Yes, but at the moment Etcher is only installable on the Pi by getting the .deb package directly for @futurejones's github . Sorry, but I don't see the relevance of that comment. You don't install Etcher on a RPI in order to install NOOBS (or any other OS) on an SD card in order to boot your RPI fo...

jj_0

2. Now that Etcher is here which makes writing images as easy as formatting/unzipping for newbies, NOOBS could be provided as an alternative image file, like pinn-lite.img.zip is. Yes, but at the moment Etcher is only installable on the Pi by getting the .deb package directly for @futurejones's git...

jj_0

It's only available on the beta firmware - see the above linked github repo for details. Yep, understood, rpi-eeprom-update. Now if only I had a USB booting PI4 I could use as a server to test the net booting ones ;) Not sure who wrote the code for the Pi3 USB boot but it works well with my USB3/SS...

jj_0

So, it's still HDMI data, it never gets converted to anything else Ohhh... okay. That was enlightening (like seriously, not making fun of you). I guess now the only option to look for is HDMI to USB 3. I hope video input at USB 3 is feasible and not cursed :P My two cents from all of the above: Thi...

jj_0

hippy wrote: ↑
Sat Nov 09, 2019 8:29 pm

Did nobody read the link I posted

Yes, I did! Hence my silence thereafter, I've been trying to find my HDMI-to-IP adapter set ever since to try it out...

jj_0

Maybe this thread offers some options? https://www.raspberrypi.org/forums/view ... 7#p1548751

jj_0

What does

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systemctl status timedatectl

say?

jj_0

Dass einfachste ist um am Raspberry Pi mit hilfe der 'SD Card Copier' (via ‘Accessories’ Menu) ein 1:1 Kopie zu erstellen auf den USB-stick. Wenn du danach von(?) USB bootest kann mit raspi-config ('Advanced Options') die rootfs partition expanded werden.

jj_0

Did you reboot after the dist-upgrade? If a new kernel is installed it won't be active until after reboot. After that it should look for modules in the 4.19.75+ modules directory.

jj_0

In my experience, a flash card unexpectedly showing up read-only almost always means a failed card. If there is anything important on the card, copy it right away, if possible. Try reformatting with the SD Association utility from https://www.sdcard.org/downloads/formatter/index.html Either that, o...

jj_0

Look up 'udev rules'. These allow you to create specific/additional device names (actually softlinks to the actual /dev/ttyUSBx name that the kernel assigns) for (a.o.) USB devices based on for example the serial number of the device. There's a generuc tutorial here: https://linuxconfig.org/tutorial...

jj_0

I would suggest connecting to the UART/serial console (via USB2serial converter) to see any error messages and hopefully still be able to login an check whst's happening.

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