4 My board is an Orange Pi 3, and I can only describe it as "卧槽"...
I work with .NET Core, and I just can't get this board to work.
I have flashed the Debian system on it.
To be honest, this board is quite good, but the official system is really not commendable; the kernel is old, and the software compatibility is poor.
Enough of the nonsense.
Background
The system is Debian, with kernel 4.9, only supporting GCC 4.9.
I want to install .NET Core 3 arm64
It cannot run because it requires GCC version > 5.2
Most of the methods found online are just copies. They require downloading the GCC source package and compiling it. I want to say, even if you use an 8 GB RAM computer, unpacking, configuring, and compiling will take you several hours.
If your device is a 1 GB development board, it may take over 20 hours.
The following commands are for reference; some newcomers might not be familiar with Linux.
# Check GCC version gcc -vLocation of apt sources
/etc/apt/sources.listCheck system kernel version
uname
-aCheck if the system is 32 or 64 bits
If it returns 64, it's 64-bit; if no return or returns 32/other, it's 32-bit
getconf LONG_BIT
After opening a file with vim
Press i to edit text
Press ESC key to enter command mode, type :wq
! to save and exit
Step 1: Update apt-get sources
Input the command to modify the apt sources
sudo vim /etc/apt/sources.list
In the opened file, change all connections starting with https to http (do not change those with #)
Step 2
Add sources at the beginning
deb http://ftp.debian.org/debian sid main
# The above line must be added
# The lines below do not need to be added, just keep them for reference
deb http://mirrors.163.com/debian/ jessie main non-free contrib deb http://mirrors.163.com/debian/ jessie-updates main non-free contrib deb http://mirrors.163.com/debian/ jessie-backports main non-free contrib deb-src http://mirrors.163.com/debian/ jessie main non-free contrib deb-src http://mirrors.163.com/debian/ jessie-updates main non-free contrib deb-src http://mirrors.163.com/debian/ jessie-backports main non-free contrib deb http://mirrors.163.com/debian-security/ jessie/updates main non-free contrib deb-src http://mirrors.163.com/debian-security/ jessie/updates main non-free contrib
The first line is the official Debian source; the others are from 163. If you do not add the Debian source, it may result in an error.
Step 3: Update sources
apt-get update
This may take some time.
Step 4: Possible error messages
There may be some error messages like the following (the last 3 lines in the picture)
Err http://mirrors.ustc.edu.cn jessie-backports/main arm64 Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] Err http://mirrors.ustc.edu.cn jessie-backports/contrib arm64 Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] Err http://mirrors.ustc.edu.cn jessie-backports/non-free arm64 Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] Get:4 http://ftp.debian.org sid InRelease [242 kB] Get:5 http://ftp.debian.org sid/main Translation-en [6316 kB] Get:6 http://ftp.debian.org sid/main arm64 Packages [8096 kB] Fetched 14.7 MB in 3min 3s (79.7 kB/s) W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie-updates/InRelease Unable to find expected entry 'main/binary-arm64/Packages' in Release file (Wrong sources.list entry or malformed file) W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie/main/binary-arm64/Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie/contrib/binary-arm64/Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie/non-free/binary-arm64/Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie-backports/main/binary-arm64/Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie-backports/contrib/binary-arm64/Packages 404 Not Found [IP: 2001:da8:d800:95::110 80] W: Failed to fetch http://mirrors.ustc.edu.cn/debian/dists/jessie-backports/non-free/binary-arm64/Packages 404 Not Found [IP:
Don't worry about it; errors are errors, as long as the newly added apt source can be updated.
Step 5
This command installs gcc; remember to press y when prompted during the installation.
sudo apt-get -t sid install libc6 gcc
If everything goes well, it will be updated to the latest version; mine was updated to gcc 8.3.
You might ask, what about gcc++?
Actually, when installing gcc, gcc++ was installed together.
Additionally, this command can install gcc, gcc++ and related libraries.
apt-get install build-essential
Install the method to support https.
sudo apt-get install apt-transport-https
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