ISSUE SOLVED!!!
All, I just wanted to let you know what I did in order to solve the issue with my crashing rock pi 4a
As mentioned herehere there seems to a fix for the kernel regarding the powering of the sdcard.
Here is described how to upgrade to the newest kernel.
I did the following steps:
-
use a power supply which offers 5V=3A
-> this obviously was much better than the 5V=2A! During the following steps, the rock pi 4a did not crash a single time! -
add:
deb http://apt.radxa.com/bionic/ bionic main
to the /etc/apt/sources.list -
sudo apt-get install linux-4.4-lastest -
sudo apt-get install openssh-server
(this is needed in order to ssh into the SBC from another machine) -
sudo shutdown -r now -
sudo apt-get update && sudo apt-get upgrade -
check on which version my rock pi 4a is now
uname -a
Linux rockpi4a 4.4.154-83-rockchip-00023-gae7a309 #2 SMP Fri Apr 12 20:04:24 CST 2019 aarch64 aarch64 aarch64 GNU/Linux -
check what release we have installed
cat /etc/os-release
NAME=“Ubuntu”
VERSION=“18.04.2 LTS (Bionic Beaver)”
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME=“Ubuntu 18.04.2 LTS”
VERSION_ID=“18.04”
HOME_URL=“https://www.ubuntu.com/”
SUPPORT_URL=“https://help.ubuntu.com/”
BUG_REPORT_URL=“https://bugs.launchpad.net/ubuntu/”
PRIVACY_POLICY_URL=“https://www.ubuntu.com/legal/terms-and-policies/privacy-policy”
VERSION_CODENAME=bionic
UBUNTU_CODENAME=bionic
Now with the latest kernel installed, I was able to switch back to my 5V=2A supply and it works like a charm!