Scribbles for my bad memory

This is because Debian 11/Debian 12 with Gnome does not ship with the packages to display tray icons. To install and enable the correct packages to display tray icons, run the following command:

sudo apt install gnome-shell-extension-appindicator

Then either reboot or log out and back in to Gnome, and run the following command:

gnome-extensions enable [email protected]

Reference

I managed to set up debian 11 on a Toshiba Chromebook2, model CB35-B3340 and a Dell Chromebook 11 3120 P22T00 WIFI/Sound/HDMI all work well, which satisfies me.

• Firstly, switch Chromebook into developer mode

  • Visit Debian and use dd command to create a bootable usb stick with a minimal iso

• Visit MrChromebox

  • Install/Update UEFI (Full ROM) firmware (the Sea bios)

• Boot from the usb stick and setup the minimal system

  • Allow debian use all 15G space with LVM, no separate partitions
  • Skip wifi setup as we don't have the firmware at that moment

• Boot from the chromebook into debian without GUI, without network

• Plug a usb realteck 8139 ethernet card and so I get internet connection:

  • add non-free and main contrib source line to /etc/apt/sources.list file：

deb http://mirror.fsmg.org.nz/debian bullseye main contrib non-free

• apt install firmware-iwlwifi, firmware-intel-sound

• apt install gnome-core (wifi works from now)

• plug off the usb ethernet card and reboot

  • wifi works

• Other settings

  • Remove old kernels to save space, Help Reference
  • Settings => Power => Disable auto suspend when plug in
  • Run sudo apt clean
  • Restrict journal log max size by vim /etc/systemd/journald.conf and uncomment the SystemMaxUser=50M line， and then systemctl restart systemd-journald

You must have known that I just migrated this blog site to a VPS hosted on oracle cloud, while this wiki page is too brief to get a workable environment easily.

Here is the note for this migration.

1. sudo -i
2. Install packages that chyrp will need

    apt install php8.1 php8.1-xml php8.1-fpm php8.1-mysql php8.1-mbstring mysql-server nginx certbot python3-certbot-nginx

3. Set a password for 'root'@'localhost' account on this new mysql server

    ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'your_new_password';
    FLUSH PRIVILEGES;

4. Run mysql_secure_installation to

• Remove anonymous users
• Disallow root login remotely
• Remove test database and access to it

5. Create a common user for the blog database, and the blog database

    CREATE USER 'blog'@'localhost' IDENTIFIED BY 'superdifficultpassword';
    GRANT ALL PRIVILEGES ON blog.* To 'blog'@'localhost' WITH GRANT OPTION;
    FLUSH PRIVILEGES;
    CREATE DATABASE `blog` /*!40100 DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci */ /*!80016 DEFAULT ENCRYPTION='N' */;

6. Put .my.cnf with the following content in home directory

[client]
user=blog
password=yoursuperdifficultpassword
host=localhost

7. Restore the database backup

    mysql blog < blog_20230408-030501.sql

8. Setup nginx and https certificate with certbot
9. Setup renew the certificate by crontab

SHELL=/usr/bin/bash
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
15 0 * * * /usr/bin/certbot --nginx renew > /dev/null

10. Restore previous installation, overwrite with the latest version, do the upgrade, that's it!

answer:

1. Edit the file /etc/systemd/system/multi-user.target.wants/tailscaled.service,
2. Add the line "LogLevelMax=3" in the [Service] section.
3. systemctl daemon-reload
4. systemctl restart tailscaled

Reference

In short,

sudo vim /etc/systemd/logind.conf

Find and uncomment the following lines, and change the values

HandleLidSwitch=lock
HandleLidSwitchExternalPower=lock
HandleLidSwitchDocked=ignore

Save and exit, and 

sudo systemctl restart systemd-logind