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README: add IP fallback, dd safety note, and Arch build-deps command

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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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28allday 2026-05-31 19:01:01 +01:00
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README.md
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@ -36,6 +36,7 @@ Arch Linux server**:
## Requirements (on the build machine) ## Requirements (on the build machine)
- A Linux box with: `xorriso`, `squashfs-tools`, `git`, `sha512sum`, `sudo`. - A Linux box with: `xorriso`, `squashfs-tools`, `git`, `sha512sum`, `sudo`.
On Arch: `sudo pacman -S libisoburn squashfs-tools git coreutils`.
- A **stock Arch ISO** (filename starting with `archlinux-`) from - A **stock Arch ISO** (filename starting with `archlinux-`) from
<https://archlinux.org/download/>, placed next to the script. <https://archlinux.org/download/>, placed next to the script.
- An SSH public key (used for the headless server's only login method). - An SSH public key (used for the headless server's only login method).
@ -67,6 +68,8 @@ or write it to a stick directly:
sudo dd if=omalocal-arch-YYYYMMDD.iso of=/dev/sdX bs=4M status=progress conv=fsync sudo dd if=omalocal-arch-YYYYMMDD.iso of=/dev/sdX bs=4M status=progress conv=fsync
``` ```
Find the stick with `lsblk` first — `dd` to the wrong device will erase it.
Boot the target in **UEFI** mode. The installer auto-starts on the console: Boot the target in **UEFI** mode. The installer auto-starts on the console:
it brings up networking (wired or Wi-Fi), prompts for hostname / user / password it brings up networking (wired or Wi-Fi), prompts for hostname / user / password
/ target disk (with a type-to-confirm guard before it wipes anything), installs / target disk (with a type-to-confirm guard before it wipes anything), installs
@ -80,6 +83,9 @@ SSH in with the key you baked in:
ssh <user>@<hostname>.local ssh <user>@<hostname>.local
``` ```
(If `.local` doesn't resolve from your client, use the server's IP — it's shown
on the server's console login screen.)
You'll be asked once whether to set the server up. Saying yes installs **Once**, You'll be asked once whether to set the server up. Saying yes installs **Once**,
optionally **Omarchy-Send**, then **OMATERM**, and leaves you in tmux. optionally **Omarchy-Send**, then **OMATERM**, and leaves you in tmux.