Best posts made by Steven de Salas

Hi guys, I just thought you'd like to know that I got serialport npm module cross compiled for the Omega2 following instructions here and here.

I will try get a more easily consumable version (maybe another npm package?) but for now feel free to download a working version of serialport@3.0.0 on the following link:

https://github.com/sdesalas/robotics/raw/master/omega2/node-serialport-v3.0.0.tar.gz

You just need to untar and move the node_modules/serialport and node_modules/.bin folders to node_modules in your project or global npm folder.

Even better:

Here is a fork containing the cross-compiled binaries:

https://github.com/sdesalas/node-serialport-omega2

Since its in github you can install via npm:

$ npm install github:sdesalas/node-serialport-omega2

Cherio.
S

I did oupgrade --latest, from https://docs.onion.io/omega2-docs/first-time-setup-command-line.html, and that seemed to do the trick.

Using b145 now and confirm SD card working. Annoyingly though, the reboot fix means that poweroff is also rebooting.

Check df first to see if it got mounted automatically. Mine was mounted on /tmp for a bit and then it got unmounted by itself.

I then checked /dev directory and found something like mmcblk0p1, then did mount /dev/mmcblk0p1 /mnt/sda1 and was able to peruse through the contents of my SD card in the /mnt/sda1 folder.

If neither of those options work try dig through the contents of dmesg, a fixed SD card should look like this:

[    4.425711] MTK MSDC device init.
[    4.468827] mtk-sd: MediaTek MT6575 MSDC Driver
[    4.477086] sdhci: Secure Digital Host Controller Interface driver
[    4.483459] sdhci: Copyright(c) Pierre Ossman
[    4.491632] sdhci-pltfm: SDHCI platform and OF driver helper
[    4.506441] usbcore: registered new interface driver usb-storage
[    4.523233] init: - preinit -
[    4.836974] mmc0: new high speed SDHC card at address aaaa
[    4.936856] mmcblk0: mmc0:aaaa SL08G 7.40 GiB
[    4.949692]  mmcblk0: p1

and a broken one like this:

[ 542.418508] mmc0: new high speed SDHC card at address 1234
[ 542.424731] mmcblk: probe of mmc0:1234 failed with error -28

@Wolfgang-Brehm Confirmed working on b145 with 8GB SanDisk.

To upgrade use oupgrade --latest.

Then you should see following in dmesg:

[    4.425711] MTK MSDC device init.
[    4.468827] mtk-sd: MediaTek MT6575 MSDC Driver
[    4.477086] sdhci: Secure Digital Host Controller Interface driver
[    4.483459] sdhci: Copyright(c) Pierre Ossman
[    4.491632] sdhci-pltfm: SDHCI platform and OF driver helper
[    4.506441] usbcore: registered new interface driver usb-storage
[    4.523233] init: - preinit -
[    4.836974] mmc0: new high speed SDHC card at address aaaa
[    4.936856] mmcblk0: mmc0:aaaa SL08G 7.40 GiB
[    4.949692]  mmcblk0: p1

Hi guys,

Aparently there is an official guide in the docs for pivot-overlay (v0.1.9 b149 and up).

See link below:

Booting from External Storage
https://docs.onion.io/omega2-docs/boot-from-external-storage.html

I can confirm this works with the SD card in the Omega2+ (using b149). There was an odd error message Configuring block-mount... this file has been obsoleted. please call /sbin/block mount directly but I just ignored it and carried on.

This is what I get now with my 8GB Sandisk:

root@Omega-72FF:~# df -h
Filesystem                Size      Used Available Use% Mounted on
/dev/root                 5.5M      5.5M         0 100% /rom
tmpfs                    61.4M    752.0K     60.7M   1% /tmp
/dev/mmcblk0p1            7.2G     91.9M      6.7G   1% /overlay
overlayfs:/overlay        7.2G     91.9M      6.7G   1% /
tmpfs                   512.0K         0    512.0K   0% /dev