How to enable xterm console on proxmox
Posted: Tue Jun 09, 2026 3:24 am
This requires modification in your grub file, the grub file is what linux reads when it boots up. If you screw it up, linux won't boot. In that scenario you need to boot into the recovery mode and correct the errors.
Step 1.
Add a serial port when your VM is running (click your VM, click Hardware, click Add and pick Serial port, default settings are good).
Step 2.
Log into its console and open the grubfile
Step 3.
Find the line GRUB_CMDLINE_LINUX_DEFAULT and add following in it: quiet splash console=tty0 console=ttyS0,115200n8
Full line looks like this:
Save and exit by hitting CTRL + O (yes save) CTRL + X
Step 3.
Step 4.
Step 5.
Reboot and pray that it works
Step 6.
You need to shutdown and then start again to activate the serial port you added.
Console look like this:
Step 1.
Add a serial port when your VM is running (click your VM, click Hardware, click Add and pick Serial port, default settings are good).
Step 2.
Log into its console and open the grubfile
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sudo nano /etc/default/grubStep 3.
Find the line GRUB_CMDLINE_LINUX_DEFAULT and add following in it: quiet splash console=tty0 console=ttyS0,115200n8
Full line looks like this:
Code: Select all
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash console=tty0 console=ttyS0,115200n8"Step 3.
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sudo update-grubStep 4.
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sudo systemctl enable serial-getty@ttyS0.serviceStep 5.
Reboot and pray that it works
Step 6.
You need to shutdown and then start again to activate the serial port you added.
Console look like this: