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• Test Setup

• Installation Process

  • Method1

    Creating a Bootable USB Drive

  • Connecting to Serial Console

  • BIOS Boot select

  • Configuring Grub

  • Live

    USB settings

  • Enable ttyS4 service

  Method2

  Creating a Bootable

  USB

  Drive

  • Connecting to Serial Console

  • BIOS Boot select

  • Configuring Grub

  Live USB

  Settings

  • Enable ttyS4 Service

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Setup Setup

Test setup

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• Ubuntu versions:

  • Ubuntu server 22.04

  • Ubuntu server 23.04

  • Ubuntu server 24.04

• Terminal software:

  • Putty

• USB flash disk: Kingston Data Traveler

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Installation Installation

Installation process

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• Download the modified installer to a USB drive
  Please follow instructions at https://solidrun.atlassian.net/l/cp/m9Reo11r

  • Installer modifications:

    • Modified the boot/grub/grub.cfg file to have a new entry with the required boot parameters.

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Please follow instructions at Using serial console with Bedrock V3000

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You need to choose your USB bootable device to start the installation.

• Insert the USB media to the device

• Turn on Bedrock

• Repetitively press the DEL / ESC key to enter the BIOS setup

• In BIOS go to -> Save & Exit -> <your bootable USB device> -> yes

• Device will reset and a grub menu screen will appear

  • If you dont see a grub menu, reboot and press the “arrow down” key repetitively right after you pressed enter to boot from BIOS

• Select ubuntu console installation

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• After live USB boots

• Amidst the kernel output, press Enter to swiftly locate the shell prompt.

• Run sudo subiquity

• If you see a “waiting for cloud init” message, wait until it times out and opens the installer (could take some time since some services should finish starting in the background).

• Proceed with your preferred installation settings and await completion

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Select Enter shell

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Run echo 'systemctl enable getty@ttyS4.service' | chroot /target

• This enables the console for ttyS4 for the installed image.

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Run exit

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Select Reboot

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When prompted, remove the installation media and press enter

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Device will be rebooted

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bootable bootable

Creating bootable USB drive

Please follow instructions at https://solidrun.atlassian.net/l/cp/m9Reo11r

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• You'll encounter a window resembling:

  Code Block
  setparams 'Install Ubuntu Server' set gfxpayload=keep linux        /casper/vmlinuz   quiet  ---  initrd        /casper/initrd

• Remove the quiet parameter and change the entry that starts with ‘linux’ to look as follows:

• Code Block
  linux /casper/vmlinuz console=tty1 console=ttyS4,115200n8 systemd.wants=serial-getty@ttyS4.service —

• Wait for the live USB to boot

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Live Live

Live USB settings

• After live USB boots

• Amidst the kernel output, press Enter to swiftly locate the shell prompt.

• Run sudo subiquity

• Run sudo subiquity

  • NOTE: On newer Ubuntu versions the installer might run automatically, so you can skip this step.

• If you see a “waiting for cloud init” message, wait until it times out and opens the installer (could take some time since some services should finish starting in the background).

• Proceed with your preferred installation settings and await completion

• Wait until installation is complete

• When prompted, remove the installation media and press enter

• Device will be rebooted

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• Boot into BIOS

• Boot from the disk you installed linux on

• If you don't get a grub menu automatically, press the “arrow down” key repetitively right after you pressed enter to boot from BIOS

  • If you dont get the grub menu after pressing shift, connect a keyboard to the device and hold shift on the connected keyboard when booting

• In the grub menu choose:

  • Advanced options for Ubuntu

  • Select the line that says recovery mode

  • Press ’e’

  • In the line that says: linux        /boot/vmlinuz-5.15.0-43-generic root=UUID=4c58e5aa-6443-4fb2-84e7-4ac2265a7b9e ro recovery nomodeset dis_ucode_ldr

  • Add the console parameters to grub after the ‘ro’ parameter

    • from this:

    • Code Block
      linux /boot/vmlinuz-6.2.0-27-generic root=UUID=1dfc1a94-6289-4b15-9f4f-0fb36c083841 ro

    • to this:

      • Code Block
        linux /boot/vmlinuz-6.2.0-27-generic root=UUID=1dfc1a94-6289-4b15-9f4f-0fb36c083841 ro console=tty1 console=ttyS4,115200n8 systemd.wants=serial-getty@ttyS4.service quiet

      • Note: if you want to see the boot logs remove the quiet argumentPress ctrl+x to boot

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• • • • boot

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• Type to enable the ttyS4 service automatically when you boot: systemctl enable serial-getty@ttyS4

• edit grub config file: nano /etc/default/grub

  • add the console redirection to the grub default options (same as above):
    on line: GRUB_CMDLINE_LINUX_DEFAULT add the following

    Code Block
    GRUB_CMDLINE_LINUX_DEFAULT="quiet console=tty1 console=ttyS4,115200n8"

  • save the file and run: update-grub

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