Start up in console mode
From: https://askubuntu.com/questions/859630/how-to-start-ubuntu-in-console
-mode
How to start Ubuntu in Console mode
I want to know if there is a way to switch to console mode from the boot
menu. I have an NVIDIA 1070 and every time there is an update, the GUI stops
working. All I need to do is re-install the drivers; however, to do that I
need to be in console mode.
EDIT: I should have added more information to this question but I'll comment
on all answers. In short: I've tried text instead of quiet splash I do see
booting activity in text mode; however, I don't get a login screen and ctrl
+ Alt + F1 doesn't help because GDM keeps trying to restart. Previously I
managed to kill GDM through multiple tries but is not working since the
latest update.
EDIT: After searching for runlevel, I've found How do I change the runlevel
on systemd? but I think it required me to have a running system to make
changes -- please correct me if I'm wrong.
Have you tried appending a 3 to the boot options (adding 3 to quiet splash)?
muru Dec 12, 2016 at 2:26
I'll try that, so basically just change quiet splash to quiet splash 3 is
that correct? –
wisemonkey Dec 12, 2016 at 5:47
Amazing thanks a lot, this is what I was looking for. I would like to
know if I can somehow make NVidia (proprietary) drivers configure properly
with every kernel update. But even if not this should help me. You can add
it as an answer and I'll accept it. –
wisemonkey Dec 12, 2016 at 6:02
1
The most correct answer is here: superuser.com/a/1139020/403009 –
Eric Mar 29, 2018 at 19:15
Answer 1
Yes you can. As described here (ubuntuhandbook.org - Boot into text console
ubuntu) you need to edit /etc/default/grub to have the next boot end up in
text mode. In summary you will set these parameters:
GRUB_CMDLINE_LINUX_DEFAULT="text"GRUB_TERMINAL=console
After saving changes you need to run:
sudo update-grub
sudo systemctl enable multi-user.target --force
sudo systemctl set-default multi-user.target
Undoing text-mode
To undo sudo systemctl set-default multi-user.target simply type
sudo systemctl enable graphical.target --force
sudo systemctl set-default graphical.target
WinEunuuchs2Unix 100k3434 gold badges240240 silver badges401401 bronze badges
Comments
1
Is there any way to show login to terminal by default (like init 3 in
old times), problem with ctrl+alt+f1 is that GDM keeps retrying to start and
I don't get console. –
wisemonkey
Dec 12, 2016 at 1:24
Did you try the grub method described in the answer? –
WinEunuuchs2Unix
Dec 12, 2016 at 2:17
2
@wisemonkey I have updated the answer with manual updating of grub from
Live DVD/USB. –
WinEunuuchs2Unix
Dec 12, 2016 at 11:08
8
This does not seem to work on Ubuntu 15.04 and up (I tried 16.04 LTS). A
crucial step after you fixed the grub file and run update-grub is to
execute: sudo systemctl set-default multi-user.target - only then it started
booting straight into console for me. Solution from @yury in the comments of
the link you gave. –
f055
Sep 20, 2017 at 14:41
2
The undo part is not working on Ubuntu 18.04 and I'd also love to know
how to revert this change properly so I don't have to type startx on every
boot. Thanks in advance! –
hullunist
Sep 18, 2019 at 13:05
Boot into recovery mode
Immediately after the motherboard / computer manufacturer logo splash screen
appears when the computer is booting, with BIOS, quickly press and hold the
Shift key, which will bring up a GNU GRUB menu screen. With UEFI press
(perhaps several times) the Esc key to get to the GNU GRUB menu screen.
Sometimes the manufacturer's splash screen is a part of the Windows
bootloader, so when you power up the machine it goes straight to the GNU
GRUB menu screen, and then pressing Shift is unnecessary.
The timing when to press the left Shift key can be tricky, so sometimes if
you miss it you need to try it again. If that doesn't work try the answers
to I can't get the GRUB menu to show up during boot.
You will see a GNU GRUB menu screen that looks like this. Select Advanced
options for Ubuntu and press Enter.
enter image description here
A new purple screen will appear showing a list of kernels, which includes
options of booting the kernels normally or in recovery mode.
enter image description here
Press the down arrow key until you select the 2nd entry from the top (the
one with the recovery mode in the description) and then press Enter twice.
Now you should see this recovery menu:
recovery menu
Using the arrow keys scroll down to network (the third entry from the bottom
in the Recovery Menu) and then press Enter.
Using the arrow keys scroll down to root (the second entry from the bottom
in the Recovery Menu) and then press Enter.
You should now see a root prompt and you can run commands from it.
lightdm is called lightdm because it is a lightweight application compared
to GDM which is heavy and takes longer to load. If you still have lightdm
installed you can switch back to using lightdm as the default login display
manager with the command: dpkg-reconfigure gdm3. This will open up a new
window allowing you to select either gdm3 or lightdm as the default login
display manager.
Reboot the computer with the command reboot
After that the keyboard shortcutCtrl+Alt+F3 may start to work properly, and
allow you to start Ubuntu from the console.
Start Ubuntu from a virtual console
- Open a text-only virtual console by using the keyboard shortcut
Ctrl+Alt+F3.
- At the login: prompt type your username and press Enter.
- At the Password: prompt type your user password and press Enter.
- Now you are logged in to a text-only console, and you can run terminal
commands from the console. To reboot the system run the command: sudo
reboot. Press the keyboard shortcut Ctrl+Alt+F7 to exit the virtual console.
In Ubuntu 17.10 and later press the keyboard shortcut Ctrl+Alt+F2 to exit
from the virtual console.
After you have logged in in the terminal type sudo systemctl start
graphical.target and press Enter to bring up your default login screen, and
then login to your Ubuntu desktop environment as usual.
karel 111k103103 gold badges271271 silver badges301301 bronze badges
(Just copying previous comment): Is there any way to show login to
terminal by default (like init 3 in old times), problem with ctrl+alt+f1 is
that GDM keeps retrying to start and I don't get console. –
wisemonkey Dec 12, 2016 at 1:26
I replied to your comment by editing my answer. –
karel Dec 12, 2016 at 2:07
Thanks Karel, but this assumes I can get system running somehow. Is that
correct? Is there a way to issue sudo dpkg-reconfigure gdm without logging
in? –
wisemonkey Dec 12, 2016 at 5:49
This does not waor anymore sudo dpkg-reconfigure gdm-> package gdm is
not installed(ubuntu 16.04). And sudo dpkg-reconfigure lightdm does not do
anything. –
Robert Mar 30, 2018 at 12:44
@Robert You are partially right. The reason why I referred to gdm is that
gdm is mentioned in the question, therefore I was required to address it in
my answer. However if you run the command apt policy gdm in Ubuntu 16.04 you
will see that gdm is indeed a package in the default Ubuntu 16.04
repositories. –
karel Mar 30, 2018 at 12:48
Answer 04
Press CTRL+ALT+F1 or any other function (F) key up to F7, which takes you
back to your "GUI" terminal. These should drop you into a text-mode terminal
for each different function key.
Otherwise you can boot into recovery mode if you need:
https://wiki.ubuntu.com/RecoveryMode
Basically hold down SHIFT as you boot up to get the Grub menu.
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edited Dec 13, 2016 at 1:22
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Fabich
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answered Dec 11, 2016 at 22:53
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Kristopher Ives
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3
(copying previous comment): Is there any way to show login to terminal
by default (like init 3 in old times), problem with ctrl+alt+f1 is that GDM
keeps retrying to start and I don't get console. And for recovery mode its
same results if I say clean start. I'll read up on other recovery modes and
see if they are helpful –
wisemonkey
Dec 12, 2016 at 1:26
This is what I always used to do, but it doesn't work anymore in Ubuntu
19.10. Ctrl+Alt+F2-6 just take you to a black screen now, and Ctrl+Alt+F1 is
now actually the login manager. Any ideas what to do on new versions? –
Joseph Garvin
Mar 29, 2020 at 19:37
Answer 5
Editing /etc/default/grub gave me the boot menu that I needed to boot in
recovery mode.
These were my steps:
- Edit /etc/default/grub and set GRUB_TIMEOUT to -1 (the documentation also
mentions that you need to comment out any setting of GRUB_HIDDEN_TIMEOUT).
This will allow the boot menu to pop up and stay there until you take
action.
- Run sudo update-grub for changes to take effect.
- Reboot and select the Recovery Mode option in the Grub menu.