§2023-09-29

• Odroid N2 This article is incomplete an unfinished

1. Prerequisites

• Computer running linux (gentoo)
• Option to access the SD-Card from this computer
• Option use USB drive.

2. Partition Table

The desired partition tables looks like this:

| Area Name | Size | From (sector #) | To (sector #) | device | | :------------ | :---- | :---------------- | :---------------- | :----- | | Bootloader1 / MBR | 512B | 0 | 0 | - | | U-Boot | 959.5K | 1 | 1919 | /dev/block/bootloader | | U-Boot Environment | 64KB | 1920 | 2047 | /dev/block/env | | FAT32 for boot | 128MB | 2048 | 264191 | /dev/mmcblk0p1 | | swap | 4GB | todo | todo | /dev/mmcblk0p2 | | BTRFS root | - | todo | remaining blocks | /dev/mmcblk0p3 |

Option 1 - Extract from Image

In this section, the desired partition table is acquired by using an available ubuntu boot image. This has the advantage of not needing to build U-Boot.

Download an ubuntu image to extract the bootloader from.

user $wget http://de.eu.odroid.in/ubuntu_18.04lts/N2/ubuntu-18.04.2-4.9-minimal-odroid-n2-20190329.img.xz

Extract the image.

user $xz -d ubuntu-18.04.2-4.9-minimal-odroid-n2-20190329.img.xz

Copy the first MBs which contain the partition table and the bootloader to the sd-card.

user $dd if=ubuntu-18.04.2-4.9-minimal-odroid-n2-20190329.img of=/dev/mmcblk0 bs=1M count=150 status=progress

150+0 records in
150+0 records out
157286400 bytes (157 MB, 150 MiB) copied, 0,241063 s, 652 MB/s

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