View Full Version : [SOLVED] Error installing on server without graphics card - no suitable video mode found

September 21st, 2018, 04:45 AM

I am trying to install Ubuntu Server 16.04 on a single-board computer with no graphics card / chipset. After selecting "Install Ubuntu" from the menu, I get the following error:

error: no suitable video mode found.
Booting in blind mode

After this the install process just hangs.

I tried to edit the boot command, but I am not sure what to specify. I saw the "text" option, but it did not help. I also tried vga=ask, which did not prompt for the mode.

I am installing from a bootable USB stick. I have used it before to install successfully (on a server with a graphics card).

I am connected using a USB Serial link, using screen on a Mac.

Any suggestions?



September 21st, 2018, 05:37 PM
Use the alternate release ISO and a serial connector.
https://help.ubuntu.com/community/SerialConsoleHowto (old)

https://askubuntu.com/questions/769756/ubuntu-server-usb-installation-with-installers-output-on-ttys0-serial-port is probably more helpful.

October 3rd, 2018, 05:08 PM
The solution was to add "console=ttyS0,115200n8" to the boot command.

When the boot menu comes up, select "Install Ubuntu Server" and type "e" to enter the editor. Add the above to the boot command, so that it looks something like this:

linux /install/vmlinuz file=/cdrom/preseed/ubuntu-server.seed quiet console=ttyS0,115200n8 ---

Then type ctrl-x to exit the editor and boot.


October 3rd, 2018, 05:50 PM
Please mark the thread "SOLVED" using the thread tools button near the top of the pg.
And thanks for posting the solution. Both of these things help the community.