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== 1-prep README
This 1st
https://github.com/iiab/iiab/wiki/IIAB-Contributors-Guide#ansible[stage]
(1-prep) arranges low-level things like remote support infra, DNS prep,
hardware, low-level OS quirks, and basic security:
* SSHD
* OpenVPN if/as needed later for remote support
* https://github.com/iiab/iiab/tree/master/roles/iiab-admin#iiab-admin-readme[iiab-admin]
username and group, to log into Admin Console
* dnsmasq (install now, configure later!)
* Universally unique identifier: /etc/iiab/uuid
* Ubermix (distro) needs /etc/tmpfiles.d/iiab.conf to create essential
/var/log subdirs on each boot
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* *_Hardware actions:_*
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** Install package cloud-guest-utils for growpart
** Install https://github.com/iiab/iiab/blob/master/roles/1-prep/templates/iiab-expand-rootfs[iiab-expand-rootfs] that acts on flag `/.expand-rootfs` at boot
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** link:tasks/raspberry_pi.yml[*_raspberry_pi.yml_*]:
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*** RTC (real-time clock): install udev rule, configure, enable
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*** *_Install packages:_*
**** dphys-swapfile (for swapfile)
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**** fake-hwclock (as RTC is often missing or dead!)
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**** iw, rfkill, wireless-tools (for internal Wi-Fi)
*** Increase swap file size (to `pi_swap_file_size`)
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** NUC 6 Wi-Fi firmware
Recap: Similar to 0-init, 2-common, 3-base-server, 4 server-options and
5-xo-services — this 1st stage installs core server infra (that is not
user-facing).
