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I'm currently preparing an SD-card for my Raspberry Pi, i.e. an ARM machine, while I'm sitting on a x86 one. Therefore I cannot simply chroot into it and run rc-update add sshd default. So, how else can I set this up without having to connect the device itself?

Tobias Kienzler
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2 Answers2

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As http://www.funtoo.org/Funtoo_Linux_Installation_on_ARM explains, it is sufficient to do a

ln -sf /etc/init.d/sshd /mnt/SDcard/etc/runlevels/default
ln -sf /etc/init.d/dhcpcd /mnt/SDcard/etc/runlevels/default

(adding dhcpcd is optional though you have to setup some networking)

rc-update basically does this after checking that a service's dependencies are met, which in the case of sshd are none. However, remember to setup a root password (e.g. by pasting openssl passwd -1's output into etc/shadow's root:YOUR_PASSWORD_MD5:14698:0:::::) or public key authentication.

Tobias Kienzler
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You can set up your host system to run ARM binaries using the QEMU emulator. This is done by registering an userspace-application for a specific executable format to the kernel's binfmt-functionality.

Since the setup-procedure is quite lengthy, let me just post some links to howtos: https://wiki.gentoo.org/wiki/Crossdev_qemu-static-user-chroot
http://linux-sunxi.org/Gentoo
https://forums.gentoo.org/viewtopic-t-996114.html
https://wwwold.gentoo.org/proj/en/base/embedded/handbook/?part=1&chap=5

Jannis
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