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load mmc 0:1 0xa4000000 ubuntu-core.imgmmcimg mmc dev 1 1mmcmmc write 0xa4000000 0 0xd2000 |
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load mmc 0:1 0xa4000000 ubuntu-core.img mmc dev 1 mmc write 0xa4000000 0 0xd2000 |
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To flash the image into SATA drive run the following commands (it will wipe your data) –
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Boot the machine by running ‘boot’ in u-boot.
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Ubuntu username and password are ‘root’ and ‘root’. |
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Please note If you are willing to use a similar image in production you must change this password, or completely disable root login. |
The following stages needs to be done in order to finalize the imaging –:
Run ‘fdisk /dev/nvme0n1’ if using NVME M.2 or ‘fdisk /dev/sda’ if using a SATA drive or ‘fdisk /dev/mmcblk1’ if using eMMC.
Recreate the first partition by deleting it and then creating a new partition that starts at block 131072 and extends to the end of the drive (or less depending on your needs).
Write the new partition, when prompt about ‘Do you want to remove the signature?’ then answer with yes.
Run ‘resize2fs /dev/nvme0n1p1’ if using NVME M.2 or ‘resize2fs /dev/sda1’ if using a SATA drive or ‘resize2fs /dev/mmcblk1p1’ if using eMMC.
In this stage the root partition should be big enough to start populating it; but first update the RTC clock.
Connect the RJ45 to your network with internet access (and DHCP server); and then run ‘dhclient’
Update the RTC clock by running ‘ntpdate http://pool.ntp.org ’ and then ‘hwclock -w’.
Run ‘apt update’ and then populate the root filesystem as you wish
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Gentoo is a free and open-source distribution with a rolling-release model.
The bootloader and kernel provided are recent enough to install Gentoo from the eMMC Ubuntu to the NVMe or SATA device.
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apt install btrfs-progs
mkfs.btrfs /dev/nvme0n1p1
mount /dev/nvme0n1p1 /mnt
cd /mnt
# change 20200609 with what's available here http://distfiles.gentoo.org/experimental/arm64/
wget http://distfiles.gentoo.org/experimental/arm64/stage3-arm64-20200609.tar.bz2
mount --rbind /dev dev
mount --make-rslave dev
mount -t proc /proc proc
mount --rbind /sys sys
mount --make-rslave sys
mount --rbind /tmp tmp
cp /etc/resolv.conf etc
chroot . /bin/bash
env-update && . /etc/profile
emerge-webrsync
emerge superadduser openssh vim
# Set the root password
passwd
# enable root login
vim /etc/ssh/sshd_config
# or create your user
superadduser your_user
ln -s /etc/init.d/net.{lo,eth0}
rc-update add sshd default
reboot |
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