Linux init after installation

PROBLEMS #

sudo takes a long time (when network having issues) #

Reason: distros should have added new host name to /etc/hosts, if the name is changed/added during installation ref.

echo -n '127.0.0.1 ' >> /etc/hosts && cat /proc/sys/kernel/hostname >> /etc/hosts

or:

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 <ADD_YOUR_HOST_NAME>
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 <ADD_YOURS_HERE>

annoying “software updater” #

sudo sed -i 's/1/0/' /etc/apt/apt.conf.d/20auto-upgrades ; cat /etc/apt/apt.conf.d/20auto-upgrades
sudo apt-get remove --auto-remove gnome-software

empty/black screen #

If screen blacked out after 1st reboot, the problem is gfxmode $linux_gfx_mode in grub.
Solutions: (for many servers, see solution 3 directly.)

1. Temporarily delete by pressing “shift” during boot and “e” (edit).
2. For permernent effect, oficial solution is to edit /etc/default/grub, uncomment GRUB_GFXMODE and add GRUB_GFXPAYLOAD as the same value, then run update-grub && reboot.
3. If the oficial solution does not work, try edit /etc/grub.d/10_linux, comment out the usage of gfxmode (the entire if ... then), and run update-grub.
   before comment:
   
   after comment:
   
4. Although renaming defination of function gfxmode directly is easier and can work, (can be done automatically by simple sed/py regular expression), this will raise an error and pause for 3s during boot.

FROM DESKTOP TO TEXT/TERMINAL MODE #

See: force text mode

FROM TEXT/TERMINAL TO DESKTOP MODE #

See: /vnc

VNC (REMOTE DESKTOP) #

See: /vnc

keywords: nix init