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https://github.com/theupriser/steamify-cachyos.git
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theupriser
40c9ee638b
- Greyed out and not tickable unless Valve has a newer BIOS (component_selectable). - Download, SHA-256 and a fwupd device check (get-details) before the warnings. - Warning box with a solid block frame (a coloured row of # renders narrower in Konsole); menu Now column aligned.
177 lines
7.7 KiB
Bash
177 lines
7.7 KiB
Bash
#!/bin/bash
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# "Update BIOS" menu item, only on a Steam Machine and always opt-in: flashes
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# the newest Steam Machine BIOS from Valve's fremont-hw-support package with
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# fwupd. It's an action, not an on/off component: never preselected, never
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# re-applied, and there is nothing to turn off afterwards.
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# Sourced by setup-gamescope-boot.sh; not meant to be run on its own.
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BIOS_REPO_PREFIX=holo
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bios_available() { detect_valve_fremont; }
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bios_status() { return 1; }
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bios_disable() { return 0; }
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bios_current() {
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cat /sys/class/dmi/id/bios_version 2>/dev/null || echo unknown
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}
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bios_lookup_newest() {
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# Sets BIOS_REPO, BIOS_PKG, BIOS_SHA256 and BIOS_NEWEST (e.g. F7F0108)
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# from the newest holo-X.Y repository on Valve's mirror: its .files
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# database names the firmware file, its .db gives the package checksum.
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# Only once per run, and with short timeouts so an offline machine
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# doesn't hold up the menu.
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[[ -n "${BIOS_LOOKED_UP:-}" ]] && return 0
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BIOS_LOOKED_UP=1; BIOS_NEWEST=""
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local tmp desc
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BIOS_REPO="$(curl -fsL --max-time 10 "$VALVE_MIRROR/" | grep -oE "$BIOS_REPO_PREFIX-[0-9]+\.[0-9]+/" | tr -d / | sort -uV | tail -n 1)"
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[[ -n "$BIOS_REPO" ]] || return 1
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tmp="$(mktemp -d)"
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if curl -fsL --max-time 30 "$VALVE_MIRROR/$BIOS_REPO/os/x86_64/$BIOS_REPO.files" -o "$tmp/files" &&
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curl -fsL --max-time 30 "$VALVE_MIRROR/$BIOS_REPO/os/x86_64/$BIOS_REPO.db" -o "$tmp/db"; then
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desc="$(tar -tf "$tmp/files" 2>/dev/null | grep -E '^fremont-hw-support-[0-9][^/]*/files$' | head -n 1)"
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[[ -n "$desc" ]] && BIOS_CAB="$(tar -xOf "$tmp/files" "$desc" | grep -E '^usr/share/fwupd/.*\.cab$' | head -n 1)"
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desc="${desc%/files}/desc"
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BIOS_PKG="$(tar -xOf "$tmp/db" "$desc" 2>/dev/null | awk '/^%FILENAME%$/ { getline; print }')"
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BIOS_SHA256="$(tar -xOf "$tmp/db" "$desc" 2>/dev/null | awk '/^%SHA256SUM%$/ { getline; print }')"
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[[ -n "${BIOS_CAB:-}" && -n "$BIOS_PKG" && -n "$BIOS_SHA256" ]] && BIOS_NEWEST="$(basename "$BIOS_CAB" .cab)"
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fi
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rm -rf "$tmp"
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[[ -n "$BIOS_NEWEST" ]]
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}
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bios_selectable() {
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# Only when Valve has a newer BIOS than the one installed; the menu
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# greys the item out otherwise (up to date, or newest unknown/offline).
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[[ -n "${BIOS_NEWEST:-}" && "$BIOS_NEWEST" != "$(bios_current)" ]]
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}
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bios_label() {
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# Menu label with the current and the newest version.
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local newest="newest unknown (offline?)"
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[[ -n "${BIOS_NEWEST:-}" ]] && newest="newest $BIOS_NEWEST"
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[[ "${BIOS_NEWEST:-}" == "$(bios_current)" ]] && newest="up to date"
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echo "Update BIOS (at your own risk): now $(bios_current), $newest"
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}
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BIOS_BOX_WIDTH=68
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bios_box_line() {
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# bios_box_line [text]: one line of the warning box, padded to the same
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# visible width (colour codes don't count) so the right edge lines up.
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local text="${1:-}" plain pad
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plain="$(printf '%b' "$text" | sed 's/\x1b\[[0-9;]*m//g')"
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pad=$(( BIOS_BOX_WIDTH - 6 - ${#plain} ))
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(( pad < 0 )) && pad=0
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printf ' %b██%b %b%*s%b██%b\n' "$c_red" "$c_reset" "$text" "$pad" "" "$c_red" "$c_reset"
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}
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bios_box_border() {
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# Block characters: Konsole draws a long coloured row of # narrower
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# than the box's other lines, so its right edge wouldn't line up.
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printf ' %b%s%b\n' "$c_red" "$(printf '█%.0s' $(seq "$BIOS_BOX_WIDTH"))" "$c_reset"
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}
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bios_disclaimer() {
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# bios_disclaimer <title> [line...]: the warning box; extra lines are
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# shown above the fixed risks.
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local title="$1" line b="$c_bold" n="$c_reset"
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shift
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echo
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bios_box_border
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bios_box_line
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bios_box_line "$c_red$b$title$n"
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bios_box_line
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bios_box_border
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for line in "$@"; do bios_box_line "$line"; done
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bios_box_line
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bios_box_line "- A failed or interrupted BIOS update can leave the machine"
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bios_box_line " unable to start (bricked). This wizard, CachyOS and Valve"
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bios_box_line " take no responsibility for that."
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bios_box_line "- ${b}NEVER turn off the power, unplug the machine or press${n}"
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bios_box_line " ${b}the power button while the update runs${n}, including the"
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bios_box_line " restart(s) afterwards, when the firmware is written."
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bios_box_line "- The screen can stay black for several minutes. Wait."
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bios_box_line "- Only on mains power, with all other programs closed."
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bios_box_line
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bios_box_border
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echo
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}
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bios_fits_device() {
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# bios_fits_device <cab>: does fwupd match this firmware to a device in
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# this machine? It compares the file's hardware IDs (GUIDs) with the
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# hardware; for a file that doesn't fit it reports an UpdateError.
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local details
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details="$(sudo fwupdmgr get-details --json "$1" 2>/dev/null)" || return 1
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grep -q '"Guid"' <<< "$details" && ! grep -q '"UpdateError"' <<< "$details"
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}
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bios_enable() {
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if ! bios_lookup_newest; then
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err "Couldn't find the newest Steam Machine BIOS on Valve's mirror ($VALVE_MIRROR)."
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return 1
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fi
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local current tmp
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current="$(bios_current)"
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if [[ "$current" == "$BIOS_NEWEST" ]]; then
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ok "The BIOS is already the newest version ($current); nothing to do."
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return 0
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fi
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# Download and check everything before asking: the warnings only come
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# when the file is Valve's (SHA-256 from Valve's repo database) and fwupd
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# confirms it's firmware for this very machine.
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pacman -Q fwupd >/dev/null 2>&1 || sudo pacman -S --needed --noconfirm fwupd ||
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{ err "Installing fwupd failed."; return 1; }
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tmp="$(mktemp -d)"
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info "Downloading $BIOS_PKG ($BIOS_REPO)..."
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if ! curl -fsSL "$VALVE_MIRROR/$BIOS_REPO/os/x86_64/$BIOS_PKG" -o "$tmp/pkg.tar.zst" ||
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! echo "$BIOS_SHA256 $tmp/pkg.tar.zst" | sha256sum -c --quiet - ||
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! tar -I unzstd -xf "$tmp/pkg.tar.zst" -C "$tmp" "$BIOS_CAB"; then
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err "Downloading or verifying $BIOS_PKG failed; the BIOS was not touched."
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rm -rf "$tmp"
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return 1
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fi
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ok "Checksum OK: this is Valve's $BIOS_PKG."
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if ! bios_fits_device "$tmp/$BIOS_CAB"; then
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err "fwupd says BIOS $BIOS_NEWEST is not for this machine's hardware; not installing it."
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rm -rf "$tmp"
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return 1
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fi
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ok "fwupd confirms BIOS $BIOS_NEWEST is firmware for this machine."
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local g="$c_green$c_bold" b="$c_bold" n="$c_reset"
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bios_disclaimer "WARNING: BIOS UPDATE - ENTIRELY AT YOUR OWN RISK" \
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"Current BIOS: ${b}$current${n}" \
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"New BIOS: ${b}$BIOS_NEWEST${n}" \
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"Checksum: ${g}OK${n} (Valve's package)" \
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"Compatible: ${g}yes${n} (checked by fwupd)"
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if ! ask_yn "Do you understand the risks and want to continue?" n; then
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info "BIOS update cancelled; nothing was changed."; rm -rf "$tmp"; return 0
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fi
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bios_disclaimer "LAST CHANCE: THIS FLASHES BIOS $BIOS_NEWEST" \
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"After this, keep the power on until the machine has fully" \
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"started again. Don't touch it, even if the screen is black."
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local reply
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read -rp "$(echo -e "${c_red}${c_bold}Type UPDATE (in capitals) to flash the BIOS, anything else cancels:${c_reset} ")" reply
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if [[ "$reply" != UPDATE ]]; then
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info "BIOS update cancelled; nothing was changed."; rm -rf "$tmp"; return 0
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fi
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info "Handing BIOS $BIOS_NEWEST to fwupd. Do NOT turn off the power from now on."
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# -y: we already asked twice; --no-reboot-check: the wizard's own
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# restart question comes at the end.
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if ! sudo fwupdmgr install -y --no-reboot-check "$tmp/$BIOS_CAB"; then
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err "fwupd could not install the BIOS update (see above); the BIOS was not changed."
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rm -rf "$tmp"
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return 1
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fi
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rm -rf "$tmp"
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BIOS_NEEDS_RESTART=1
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ok "BIOS $BIOS_NEWEST is staged. It is written during the next restart:"
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warn "keep the power on and don't touch the machine until it has fully started again."
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}
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