From 9a8b90d8104caa34bd7dc4105d711c9654ffd0cd Mon Sep 17 00:00:00 2001
From: GNU <dexterkidd@gmail.com>
Date: Mon, 24 Jul 2023 15:41:53 +0800
Subject: [PATCH] Created How uConsole A06 OS image made (markdown)

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+Based on 26f52bfde573479960d8696f407d19b9 http://dl.clockworkpi.com/DevTerm_A06_v0.2h.img.bz2
+
+Since uconsole and devterm are using the same main board
+
+Just need to update a new kernel for uconsole LCD screen
+
+## Kernel
+
+https://github.com/clockworkpi/uConsole/tree/master/Code/patch/a06/20230630
+
+Combine linux-dtb-current-rockchip64_23.02.0-trunk_arm64.deb and linux-image-current-rockchip64_23.02.0-trunk_arm64.deb
+
+One of the more complicated tasks is merging preinst, postinst, postrm, and prerm files.
+
+```
+cat  linux-image-current-rockchip64/preinst  linux-dtb-current-rockchip64/preinst > preinst
+
+cat  linux-image-current-rockchip64/postinst  linux-dtb-current-rockchip64/postinst > postinst
+
+cat  linux-image-current-rockchip64/postrm > postrm
+
+cat  linux-image-current-rockchip64/prerm > prerm
+```
+
+## Expand img size
+``` 
+dd if=/dev/zero bs=1MiB of=DevTerm_A06_v0.2h.img conv=notrunc oflag=append count=3000
+sudo losetup -f --show -P DevTerm_A06_v0.2h.img #assume got /dev/loop0
+sudo gparted /dev/loop0 #resize it,fullfill empty space with last partition by mouse drag
+sudo losetup -D /dev/loop0
+```
+
+## Chroot
+Chroot into DevTerm_A06_v0.2h.img by  
+
+```
+sudo mkdir -p /mnt/p1
+sudo losetup --show -f -P DevTerm_A06_v0.2h.img  #assume loop0
+sudo mount /dev/loop0p1 /mnt/p1
+
+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 mv etc/ld.so.preload etc/ld_so_preload
+sudo chroot .
+
+```
+
+## In chroot
+```
+sudo apt update
+#update kernel
+sudo apt install -y  uconsole-kernel-current-cpi-a06
+
+
+#install additional games/emulators
+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_utils
+
+
+#for 4G extension
+sudo bash -c 'cat << EOF > /etc/modprobe.d/blacklist-qmi.conf
+blacklist qmi_wwan
+blacklist cdc_wdm
+EOF'
+
+# uconsole does not have thermal printer
+sudo apt remove devterm-thermal-printer # uconsole does not have thermal printer
+
+#pre configs
+cd /usr/local/bin/
+git clone -b  uconsole-a06 https://github.com/cuu/skel.git
+
+cp -rf skel/.config /home/cpi/
+cp -rf skel/.local /home/cpi
+cp -rf skel/.dosbox /home/cpi
+cp -rf skel/.opentyrian /home/cpi
+cp -rf skel/etc/sudoers.d/cpi  /etc/sudoers.d/
+chown -R cpi:cpi /home/cpi
+
+#remove old configs for screen rotation,since new uconsole a06 kernel did screen rotation 
+
+* nano /boot/armbianEnv.txt ,remove   "fbcon=rotate:1"  
+* rm -rf /etc/X11/Xsession.d/90custom_xrandr  
+* rm -rf /etc/lightdm/setup.sh  
+* rm -rf /etc/lightdm/lightdm.conf.d/13-rotate-dsi.conf  
+
+exit #quit chroot
+```
+
+## Clean chroot 
+
+do it everytime when you are done with chroot enviroment  
+
+```
+cd -
+sudo umount /mnt/p1/dev/pts
+sudo umount /mnt/p1/dev
+sudo umount /mnt/p1/proc
+sudo umount /mnt/p1/sys
+##clear bash 
+sudo rm -rf /mnt/p1/root/.bash_history
+sudo umount /mnt/p1
+sudo losetup -D /dev/loop0
+```
+All uconsole image can be found at : https://github.com/clockworkpi/uConsole/tree/master/images
+
+That'it , happy hacking 
+