Cool Pi Cm5-Laptop Linux Quick Start Guide
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I lost the PD charging after flashing to the Ubuntu system. Then I flash the Armbian system, but it couldn't boot up or enter the UMS mode.
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@yfblock
Is your machine currently unable to enter UMS mode? It is possible that the file system of EMMC is damaged. You can find a USB drive and create an image of Ubuntu to it. Then, start the system from the USB drive and format EMMC in the system. Use the following command:sudo mkfs.ext4 /dev/mmcblk0 -
I Download the image form onedrive(path: CoolPi CM5 NOTEBOOK/ubuntu/20231027...), but it couldn't start.
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@yfblock
The partition format of Armbian is different from Ubuntu, so it is recommended to format EMMC before upgrading the image when switching between the two systems. -
@george i can't enter any system. Even through USB drive.
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@yfblock
Test several USB drives and find a USB 2.0 interface drive. There may be compatibility issues with USB3.0. -
@george Thank you, I have solved this problem using usb2.0 drive. I have another question. What should I do to install the system on NVME? (This message was sent by coolpi notebook).
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@yfblock
At present, the Uboot section has not added support for NVME, so it cannot be supported at the moment. We will provide support steps after the Uboot driver update. Thank you for your support. -
I replaced the board in my laptop with the newer one and compiled the firmware, but now i have two wlan adapters showing and no bluetooth available.
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@Momo-0
Run the following command and send the result.lsusb -
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@Momo-0
From the log information, it appears that the USB Bluetooth network card was not recognized. It is recommended to remove the core board, remove the WIFI module, clean the gold finger with an eraser, and then install and retest. -
@george i cleaned the contacts on the wlan card and the main processor card, still the usb bluetooth card doesnt show up maybe the board is faulty?
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@Momo-0
I'm really sorry, this board was tested before it was shipped, and it could also be caused by an abnormality during transportation. I will arrange to send you a new one. Because it is currently the May Day holiday, it may need to be processed after the holiday. I deeply apologize for the trouble I have caused you. -
@george i also have ubuntu showing two realtek wlan devices, maybe thats a clue to something?
Also i compiled for V20 since i replaced the motherboard -
@Momo-0
Two WLAN nodes are normal, and the default configuration for drivers is to generate two nodes, even one node can be used. -
I want to try the Kylin system in Baidu Pan, but unfortunately, I can't start it. Now the problem is that I can't enter MUS mode by quickly pressing the power button 8 times. No matter how I start or try, it keeps showing the logo and then rebooting repeatedly. Is there any other way for me to reflash the system?
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@guyii
From the phenomenon you described, it appears that the onboard EMMC partition table has been damaged. Try formatting the onboard EMMC memory according to the following operation method. After successful completion, you can enter UMS mode normally.- Find a USB drive and use an etcher to create an image of Ubuntu on it. Remember to back up important data from the USB drive before creating it.
- Insert the USB drive into the USB port of the laptop and start the machine. If everything goes smoothly, the machine will successfully boot from the USB drive.
- Use commands to format onboard EMMC memory
sudo mkfs.ext4 /dev/mmcblk0- Remove the USB flash drive and press and hold the power button for 10 seconds to forcibly shut down the machine.
- Connect the TypeC port to the X86 computer and press the power button multiple times to enter UMS mode.
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@guyii
Firstly, create a system image to a USB drive or a portable hard drive using the etcher. Then, insert the computer and start it up. The machine will first start from the USB drive. After entering the system, format the EMMC using the following command to enter UMS mode again.sudo mkfs.ext4 /dev/mmcblk0 -
M mainbord referenced this topic on
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I received the V20 mainboard and installed it. I followed these instructions including pulling, compiling and installing the latest kernel source, and the system boots fine, however it does not recognize the NVMe card.