我有两个Rock3A V1.3 外壳上分别 标注 了 2G/4G RAM 怎么区分它们？
现在Linux下使用 free -h 返回的结果是一样的，都是1.8G
linaro@linaro-alip:~$ free -h
total used free shared buff/cache available
Mem: 1.8Gi 400Mi 1.1Gi 23Mi 311Mi 1.4Gi
Swap: 0B 0B 0B
这两个颗粒的大小都是 2GB 的。
哎~~~~
按不同容量的各买一个，看来是要去找下销售了
Hi,
It’s normal?
free -h
total used free shared buff/cache available
Mem: 1.4Gi 174Mi 895Mi 7.0Mi 404Mi 1.2Gi
Swap: 0B 0B 0B
Because I only see 1.4Gi if it’s a 2GB ?
Thanks
This is because of the 500MB for NPU.
You can disable NPU to get more memory.
Try the following step.
1.Update kernel to the latest version, 4.19.193-38-rockchip.
sudo apt update
sudo apt install -y linux-4.19-rock-3-latest
2.Add the item “rk3568-disable-npu” to “overlays=” line in /boot/uEnv.txt.
Like
overlays=rk3568-fiq-debugger-uart2m0 rk3568-disable-npu
3.Reboot ROCK 3A and use command, free -h, to check memory.
He gives me
linux-4.19-rock-3-latest is already the newest version (4.19.193-36-rockchip).
it does not update, it did it even with the old 33, practically you always have to download the image from scratch, this command does not work.
But it works
root@rock-3a:~# free -h
total used free shared buff/cache available
Mem: 1.9Gi 143Mi 1.6Gi 7.0Mi 192Mi 1.8Gi
Do you know why I can never update the kernel to the latest version?
I have not enabled the test repository, I would like to use only the stable ones
Thank you very much for this advice
That is the reason. The test repository includes the latest packages.
Kernel of the latest version, 4.19.193-38-rockchip, is in test repository, not in stable repository.
Ok, but I’m building stable equipment, maybe I’ll use tests on another memory for testing.
Thank you very much