Dev/Embedded/Rootfs/Devuan/FromScratch

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Using debootstrap

Part 1 : on any computer

Use the following debootstrap command :

debootstrap --foreign --arch=arm64 --include=vim,bsdutils,openssh-client,openssh-server --exclude=ed,nano,tasksel,tasksel-data,vim-tiny --verbose ceres rootfs/ http://fr.deb.devuan.org/merged

You can add some of these (and many more) depending on your needs :

locales,file,net-tools,ca-certificates,bzip2,devuan-keyring,debian-archive-keyring,debian-keyring,diffutils,findutils,iptables,isc-dhcp-client,netbase,ntp,openssh-sftp-server,screen,wireless-tools,minicom

Do not add udev !
It may be possible to add eudev, but somtimes the second stage fails when it is included, so it may be better to add it after the second stage successfully completed (with apt-get install).

Part 2 : on the target

Init= kernel parameter

Add "init=/bin/bash" to your kernel command line (in the bootloader configuration), to get something like this (modify and/or add any required option according to your system) :

console=ttyS0,115200n8 root=/dev/mmcblk0p2 rw init=/bin/bash

And once you get the prompt, execute the end of the installation :

export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
/debootstrap/debootstrap --second-stage

You should then reboot the board.