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很惭愧，就做了一点微小的工作

Dash

tigervncworkingtips

Feb 12, 2024
Technology

Install lxqt for using for vnc:

$ sudo pacman -S lxqt

Enable the vnc configration for using lxqt:

$ cat ~/.vnc/config
session=lxqt
geometry=1920x1080
alwaysshared

enable the linux user for session:

$ cat /etc/tigervnc/vncserver.users 
# TigerVNC User assignment
#
# This file assigns users to specific VNC display numbers.
# The syntax is <display>=<username>. E.g.:
#
# :2=andrew
# :3=lisa
 :1=dash

Now setup the vncpasswd:

$ vncpasswd

Then you could start the vnc via:

$ sudo systemctl start vncserver@:1
$ sudo systemctl enable vncserver@:1

WorkingTipsOnBuild6130tcKernel

Feb 8, 2024
Technology

Preparation

Definition for the vagrant build machine:

$ cat Vagrantfile 
Vagrant.configure("2") do |config|
  config.vm.box = "bento/ubuntu-22.04"
  config.disksize.size = '180GB'

config.vm.provider "virtualbox" do |v|
  v.memory = 65535
  v.cpus = 12
end

end
$ pwd
/home/dash/Code/vagrant/buildUbuntuKernel610tc

Extend the partition after login to the vm:

lvextend -l +100%FREE /dev/ubuntu-vg/ubuntu-lv 
resize2fs /dev/ubuntu-vg/ubuntu-lv

update the system:

apt update -y && apt upgrade -y

Install necessary packages for building kernel:

sudo apt install libncurses-dev gawk flex bison openssl libssl-dev dkms libelf-dev libudev-dev libpci-dev libiberty-dev autoconf llvm
sudo apt build-dep linux linux-image-unsigned-6.1.0-1029-oem

Source Code

enable all of the items of deb-src in /etc/apt/sources.list, then sudo apt update -y.

mkdir -p ~/Code/Code6101029
cd ~/Code/Code6101029
apt source linux-image-unsigned-6.1.0-1029-oem

Build the packages:

cd /home/vagrant/Code/Code6101029/linux-oem-6.1-6.1.0
fakeroot debian/rules clean
fakeroot debian/rules binary

Check the build result:

$ ls
linux-buildinfo-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-headers-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-image-unsigned-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-ipu6-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-ivsc-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-modules-iwlwifi-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb
linux-oem-6.1-headers-6.1.0-1033_6.1.0-1033.33_all.deb
linux-oem-6.1-tools-6.1.0-1033_6.1.0-1033.33_amd64.deb
linux-oem-6.1-tools-host_6.1.0-1033.33_all.deb
linux-tools-6.1.0-1033-oem_6.1.0-1033.33_amd64.deb

Using docker for building

Initialize a docker instance for building:

sudo docker run -it -v /media/sdc/Code/buildkernel:/buildkernel ubuntu:22.04 /bin/bash

enter the docker and run:

apt update -y
apt install -y vim
vim /etc/apt/sources.list
apt update -y
apt install libncurses-dev gawk flex bison openssl libssl-dev dkms libelf-dev libudev-dev libpci-dev libiberty-dev autoconf llvm debhelper rsync python3-docutils bc libcap-dev git build-essential  asciidoc cpio libjvmti-oprofile0 linux-tools-common default-jdk binutils-dev libbtf1 libdwarf-dev dwarf* pahole libdwarf1 libdwarf++0
# get the dependencies via "dpkg-buildpackage -b"
apt install -y makedumpfile libnewt-dev libdw-dev pkg-config libunwind8-dev liblzma-dev libaudit-dev uuid-dev libnuma-dev zstd fig2dev sharutils python3-dev python3-sphinx python3-sphinx-rtd-theme imagemagick graphviz dvipng fonts-noto-cjk latexmk librsvg2-bin
mkdir -p  /buildkernel/oem && cd /buildkernel/oem
apt source linux-image-unsigned-6.1.0-1029-oem
cd linux-oem-6.1
cd linux-oem-6.1-6.1.0/
time sh -c 'fakeroot debian/rules clean && fakeroot debian/rules binary'

build time:

real	32m18.795s
user	309m36.938s
sys	43m52.711s

Customize kernel config file

Fetch the config file:

scp remote_config_files /root/config.common.ubuntu
cp /root/config.common.ubuntu linux-oem-6.1-6.1.0/debian.oem/config/

Edit the files:

# vim debian/rules.d/2-binary-arch.mk
......
	if [ -e $(commonconfdir)/config.common.ubuntu ]; then \
		//cat $(commonconfdir)/config.common.ubuntu $(archconfdir)/config.common.$(arch) $(archconfdir)/config.flavour.$(target_flavour) > $(builddir)/build-$*/.config; \
		cat /root/config.common.ubuntu > $(builddir)/build-$*/.config; \
	else \
......
# vim debian/rules.d/4-checks.mk
......
# Check the module list against the last release (always)
module-check-%: $(stampdir)/stamp-install-%
	@echo Debug: $@
	echo "done!"; 
	#$(DROOT)/scripts/checks/module-check "$*" \
	#	"$(prev_abidir)" "$(abidir)" $(do_skip_checks)


.......
config-prepare-check-%: $(stampdir)/stamp-prepare-tree-%
	@echo Debug: $@
	if [ -e $(commonconfdir)/config.common.ubuntu ]; then \
		echo "done!"; \
		#perl -f $(DROOT)/scripts/checks/config-check \
		#	$(builddir)/build-$*/.config "$(arch)" "$*" "$(commonconfdir)" \
		#	"$(skipconfig)" "$(do_enforce_all)"; \

......

patch :

$ patch -p1 < xxxx.patch

Then building.

tc diff for dkms

Create the diff files via:

# diff -x '.*' -Nur i915-sriov-dkms-6.1.73 i915-sriov-dkms-6.1.73.tci>dkms-kexec.patch

apply the patch , then rebuild:

# dkms remove -m i915-sriov-dkms -v 6.1.73
# dkms install -m i915-sriov-dkms -v 6.1.73

SRIOVBACKPORTKERNELFORUBUNTU2204

Feb 5, 2024
Technology

Hardware/OS information:

dash@alder:~$ uname -a
Linux alder 5.15.0-92-generic #102-Ubuntu SMP Wed Jan 10 09:33:48 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
dash@alder:~$ lscpu | grep -i model
Model name:                         12th Gen Intel(R) Core(TM) i3-12100
Model:                              151

Install prerequisite packages:

sudo apt install dkms make debhelper devscripts build-essential flex bison mawk

Checkout the firmware:

git clone https://github.com/intel-gpu/intel-gpu-firmware
cd intel-gpu-firmware
sudo mkdir -p /lib/firmware/updates/i915/
sudo cp firmware/*.bin /lib/firmware/updates/i915/

Checkout the src code:

cd Code
git clone https://github.com/intel-gpu/intel-gpu-i915-backports/
cd intel-gpu-i915-backports/
git checkout backport/main
make i915dkmsdeb-pkg
sudo dpkg -i ../intel-i915-dkms_1.23.9.11.231003.15+i1-1_all.deb

Check the dkms status:

$ dkms status
intel-i915-dkms/1.23.9.11.231003.15, 5.15.0-92-generic, x86_64: installed
$ sudo reboot
$ sudo dmesg |grep -i backport
[    1.336656] COMPAT BACKPORTED INIT
[    1.337218] Loading modules backported from I915-23.9.11
[    1.337702] Backport generated by backports.git I915_23.9.11_PSB_231003.15
[    1.380192] [drm] I915 BACKPORTED INIT 
[    1.421899]  __init_backport+0x47/0xfa [i915]

Add kernel options:

GRUB_CMDLINE_LINUX_DEFAULT="intel_iommu=on i915.enable_guc=3 i915.max_vfs=7"

Got the unstable conditions(once the dkms is installed, then cannot reboot).

WorkingTipsOnCasaOS

Feb 1, 2024
Technology

Install:

curl -fsSL https://get.casaos.io | sudo bash

Issue:

[FAILED] rclone.service is not running, Please reinstall.

Solved via:

cp /bin/mkdir /usr/bin/mkdir
cp /bin/rm /usr/bin/rm

Re-run:

curl -fsSL https://get.casaos.io | sudo bash

/images/2024_02_01_10_24_25_515x531.jpg

Using docker for running redroid:

version: "3"
services:
  redroid:
    image: redroid12:latest
    stdin_open: true
    tty: true
    privileged: true
    ports:
      - "5555:5555"
    volumes:
    # 資料存放在目前目錄下
      - ./redroid-12-data:/data
    command:
    # 禁用GPU硬體加速
      - androidboot.redroid_gpu_mode=guest
      - androidboot.use_memfd=1

  scrcpy:
    image: emptysuns/scrcpy-web:v0.1
    privileged: true
    ports:
      - "48000:8000"
    volumes:
    # 資料存放在目前目錄下
      - ./scrcpy-data:/data
    links:
    # always using myphone1
      - redroid:myphone1

Connect via:

docker exec -it redroid_scrcpy_1 adb connect myphone1:5555

做到casaos的编排里。

/images/2024_02_01_11_24_14_796x805.jpg

/images/2024_02_01_11_25_51_799x841.jpg

/images/2024_02_01_11_26_41_796x796.jpg

/images/2024_02_01_11_39_13_616x435.jpg

WorkingTipsOnUsingimgFileInDocker

Jan 26, 2024
Technology

准备Img文件:

$ wget https://mirrors.ustc.edu.cn/raspberry-pi-os-images/raspios_lite_arm64/images/raspios_lite_arm64-2023-12-11/2023-12-11-raspios-bookworm-arm64-lite.img.xz
$ unxz 2023-12-11-raspios-bookworm-arm64-lite.img.xz 
$ ls
2023-12-11-raspios-bookworm-arm64-lite.img

以准备好的img文件设置loop挂载点, 而后检查挂载点:

$ sudo losetup -fP --show  2023-12-11-raspios-bookworm-arm64-lite.img
/dev/loop17
$ sudo fdisk -l /dev/loop17
Disk /dev/loop17: 2.55 GiB, 2738880512 bytes, 5349376 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x4e639091

Device        Boot   Start     End Sectors  Size Id Type
/dev/loop17p1         8192 1056767 1048576  512M  c W95 FAT32 (LBA)
/dev/loop17p2      1056768 5349375 4292608    2G 83 Linux

将/dev/loop17p2分区挂载到/mnt9后，而后透传给容器:

$  sudo mount /dev/loop17p2 /mnt9/
$ sudo docker run -it -v /mnt9:/raspbian rockylinux:9 bash

在容器中检查/raspbian挂载点所在的位置，分区大小为2G:

[root@34e78094dace /]# df -h
Filesystem      Size  Used Avail Use% Mounted on
overlay         1.8T  1.5T  259G  86% /
tmpfs            64M     0   64M   0% /dev
shm              64M     0   64M   0% /dev/shm
/dev/loop17p2   2.0G  1.6G  330M  83% /raspbian
/dev/nvme0n1p2  1.8T  1.5T  259G  86% /etc/hosts
tmpfs            63G     0   63G   0% /proc/asound
tmpfs            63G     0   63G   0% /proc/acpi
tmpfs            63G     0   63G   0% /proc/scsi
tmpfs            63G     0   63G   0% /sys/firmware