Updated How uConsole CM4 OS image made (markdown)

GNU 2024-12-13 23:31:04 -08:00
parent f67675f3b7
commit e091d303e6

@ -1,111 +1,166 @@
Based on 4d990ec702d0b6383f6e43bbeb3e3274 http://dl.clockworkpi.com/DevTerm_CM4_v0.1a_64bit.img.bz2 # How uConsole CM4 OS Image Is Made
Since the uConsole and devterm are using the same main board This guide explains how to create an OS image for the uConsole CM4 module. Since the uConsole and DevTerm share the same mainboard, the process involves adapting the DevTerm CM4 OS image with updates specific to the uConsole, such as a new kernel for its LCD screen.
Just need to update a new kernel for the uConsole LCD screen ---
original create os image from scratch is here: ## **Base OS Image**
https://github.com/clockworkpi/DevTerm/wiki/Create-DevTerm-CM4-OS-image-from-scratch The base OS image used is the DevTerm CM4 image:
## Kernel - Download the base image:
[DevTerm_CM4_v0.1a_64bit.img.bz2](http://dl.clockworkpi.com/DevTerm_CM4_v0.1a_64bit.img.bz2)
md5sum: 4d990ec702d0b6383f6e43bbeb3e3274
https://github.com/clockworkpi/uConsole/tree/master/Code/patch/cm4/20230630 For detailed instructions on creating the base image from scratch, refer to:
[Create DevTerm CM4 OS Image from Scratch](https://github.com/clockworkpi/DevTerm/wiki/Create-DevTerm-CM4-OS-image-from-scratch).
Create a deb file of uconsole_kernel_cm4-rpi based on kernel compiled output files ---
Another important thing to note is the correct configuration file, "config.txt". ## **Kernel Update**
``` To update the kernel for the uConsole CM4:
disable_overscan=1
dtparam=audio=on
[pi4]
max_framebuffers=2
[all] 1. Use the kernel files located here:
ignore_lcd=1 [uConsole Kernel for CM4](https://github.com/clockworkpi/uConsole/tree/master/Code/patch/cm4/20230630)
dtoverlay=dwc2,dr_mode=host
dtoverlay=vc4-kms-v3d-pi4,cma-384
dtoverlay=devterm-pmu
dtoverlay=devterm-panel-uc
dtoverlay=devterm-misc
dtoverlay=audremap,pins_12_13
dtparam=spi=on 2. Create a `.deb` package for the kernel:
gpio=10=ip,np `uconsole_kernel_cm4-rpi` is built from the compiled output files.
```
especially the line **dtoverlay=devterm-panel-uc**
## Chroot 3. Ensure the correct configuration in the `config.txt` file. Below is an example configuration:
Chroot into DevTerm_CM4_v0.1a_64bit.img
by
```
sudo mkdir -p /mnt/p1
sudo losetup --show -f -P DevTerm_CM4_v0.1a_64bit.img #assume loop0
sudo mount /dev/loop0p2 /mnt/p1
sudo mount /dev/loop0p1 /mnt/p1/boot
cd /mnt/p1 ```text
sudo mount --bind /dev dev/ disable_overscan=1
sudo mount --bind /sys sys/ dtparam=audio=on
sudo mount --bind /proc proc/
sudo mount --bind /dev/pts dev/pts
#sudo mv etc/ld.so.preload etc/ld_so_preload
sudo chroot .
```
## In chroot [pi4]
max_framebuffers=2
``` [all]
sudo apt update ignore_lcd=1
#update kernel dtoverlay=dwc2,dr_mode=host
sudo apt install -y uconsole-kernel-cm4-rpi dtoverlay=vc4-kms-v3d-pi4,cma-384
#install additional games/emulators dtoverlay=devterm-pmu
sudo apt install -y devterm-tic80-cpi uconsole-love2d retroarch dosbox devterm-cavestory-cpi-cm4 uconsole-liko12 uconsole-lowresnx uconsole-dosbox-staging pppoe uconsole-4g-util-cm4 dtoverlay=devterm-panel-uc
dtoverlay=devterm-misc
dtoverlay=audremap,pins_12_13
#for 4G extension dtparam=spi=on
sudo bash -c 'cat << EOF > /etc/modprobe.d/blacklist-qmi.conf gpio=10=ip,np
blacklist qmi_wwan ```
blacklist cdc_wdm
EOF'
# uconsole does not have thermal printer **Key line:**
sudo apt remove devterm-thermal-printer devterm-thermal-printer-cm4 # uconsole does not have thermal printer `dtoverlay=devterm-panel-uc` (This sets the panel configuration specific to the uConsole.)
#pre configs ---
cd /usr/local/bin/
git clone -b uconsole-cm4 https://github.com/cuu/skel.git
cp -rf skel/etc/xdg/autostart/first-touch.desktop /etc/xdg/autostart/
cp -rf skel/usr/local/bin/chgpas.sh /usr/local/bin/
#remove old configs for screen rotation,since new uconsole cm4 kernel did screen rotation ## **Chroot Environment**
nano /boot/cmdline.txt ,remove "fbcon=rotate:1" To modify the image in a chroot environment:
rm -rf /etc/X11/Xsession.d/90custom_xrandr
rm -rf /etc/lightdm/setup.sh
edit /etc/lightdm/lightdm.conf
comment out or delete line :
"greeter-setup-script=/etc/lightdm/setup.sh"
exit #quit chroot 1. Mount the image:
```
## Clean chroot ```bash
sudo mkdir -p /mnt/p1
sudo losetup --show -f -P DevTerm_CM4_v0.1a_64bit.img # Assume loop0
sudo mount /dev/loop0p2 /mnt/p1
sudo mount /dev/loop0p1 /mnt/p1/boot
```
do it everytime when you are done with chroot enviroment 2. Set up the chroot environment:
``` ```bash
cd /mnt/p1
sudo mount --bind /dev dev/
sudo mount --bind /sys sys/
sudo mount --bind /proc proc/
sudo mount --bind /dev/pts dev/pts
sudo chroot .
```
3. Inside the chroot environment:
- Update the system and kernel:
```bash
sudo apt update
sudo apt install -y uconsole-kernel-cm4-rpi
```
- Install additional software (games, emulators, and utilities):
```bash
sudo apt install -y devterm-tic80-cpi uconsole-love2d retroarch dosbox \
devterm-cavestory-cpi-cm4 uconsole-liko12 uconsole-lowresnx \
uconsole-dosbox-staging pppoe uconsole-4g-util-cm4
```
- Configure the 4G extension module (optional):
```bash
sudo bash -c 'cat << EOF > /etc/modprobe.d/blacklist-qmi.conf
blacklist qmi_wwan
blacklist cdc_wdm
EOF'
```
- Remove unnecessary software (e.g., thermal printer utilities, as uConsole does not include a thermal printer):
```bash
sudo apt remove devterm-thermal-printer devterm-thermal-printer-cm4
```
- Perform pre-configurations:
```bash
cd /usr/local/bin/
git clone -b uconsole-cm4 https://github.com/cuu/skel.git
cp -rf skel/etc/xdg/autostart/first-touch.desktop /etc/xdg/autostart/
cp -rf skel/usr/local/bin/chgpas.sh /usr/local/bin/
```
- Clean up old screen rotation settings (the new kernel already handles screen rotation):
```bash
nano /boot/cmdline.txt # Remove "fbcon=rotate:1"
rm -rf /etc/X11/Xsession.d/90custom_xrandr
rm -rf /etc/lightdm/setup.sh
nano /etc/lightdm/lightdm.conf # Comment out or delete the line:
# greeter-setup-script=/etc/lightdm/setup.sh
```
4. Exit the chroot environment:
```bash
exit
```
---
## **Clean Chroot Environment**
After finishing work in the chroot environment, clean up:
```bash
cd - cd -
sudo umount /mnt/p1/dev/pts sudo umount /mnt/p1/dev/pts
sudo umount /mnt/p1/dev sudo umount /mnt/p1/dev
sudo umount /mnt/p1/proc sudo umount /mnt/p1/proc
sudo umount /mnt/p1/sys sudo umount /mnt/p1/sys
##clear bash
# Clear bash history
sudo rm -rf /mnt/p1/root/.bash_history sudo rm -rf /mnt/p1/root/.bash_history
sudo umount /mnt/p1/boot sudo umount /mnt/p1/boot
sudo umount /mnt/p1 sudo umount /mnt/p1
sudo losetup -D /dev/loop0 sudo losetup -D /dev/loop0
``` ```
All the uConsole image can be found at : https://github.com/clockworkpi/uConsole/tree/master/images
That's it , happy hacking ---
## **Final Notes**
- All official uConsole OS images can be found here:
[uConsole Images Repository](https://github.com/clockworkpi/uConsole/tree/master/images)
- Happy hacking!