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e635b7af84
Source: guix-tribes master419bea8fe5Base: previous supertest-devb378db1e22Mode: tree sync, preserving dev channel authorization
68 lines
1.7 KiB
Bash
Executable File
68 lines
1.7 KiB
Bash
Executable File
#!/bin/sh
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set -eu
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script_dir=$(CDPATH= cd -- "$(dirname "$0")" && pwd)
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kernel="$script_dir/bzImage"
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initrd="$script_dir/initrd"
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cmdline=$(tr '\n' ' ' < "$script_dir/cmdline" | sed 's/[[:space:]]\+/ /g; s/^ //; s/ $//')
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extra_args="${KEXEC_KERNEL_APPEND:-}"
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extra_initrd="${KEXEC_EXTRA_INITRD:-}"
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tmp_initrd=
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execute_delay="${KEXEC_EXEC_DELAY:-3}"
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cleanup() {
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[ -n "${tmp_initrd:-}" ] && rm -f "$tmp_initrd"
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}
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trap cleanup EXIT INT TERM
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[ -r "$kernel" ] || {
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echo "missing kernel image: $kernel" >&2
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exit 1
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}
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[ -r "$initrd" ] || {
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echo "missing initrd image: $initrd" >&2
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exit 1
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}
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if [ -n "$extra_initrd" ]; then
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[ -r "$extra_initrd" ] || {
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echo "extra initrd is not readable: $extra_initrd" >&2
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exit 1
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}
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tmp_initrd=$(mktemp "${TMPDIR:-/tmp}/guix-kexec-initrd.XXXXXX")
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cat "$initrd" "$extra_initrd" >"$tmp_initrd"
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initrd="$tmp_initrd"
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fi
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if [ -n "$extra_args" ]; then
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cmdline="$cmdline $extra_args"
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fi
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if [ -n "${KEXEC_BIN:-}" ]; then
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kexec_bin="$KEXEC_BIN"
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elif [ -x "$script_dir/kexec-static" ]; then
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kexec_bin="$script_dir/kexec-static"
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elif command -v kexec >/dev/null 2>&1; then
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kexec_bin=$(command -v kexec)
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else
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echo "kexec binary not found and no bundled fallback present" >&2
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exit 1
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fi
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kexec_load_flags=
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if printf '%s\n' "6.1" "$(uname -r)" | sort -c -V 2>/dev/null; then
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kexec_load_flags="--kexec-syscall-auto"
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fi
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echo "kexec: loading $kernel"
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echo "kexec: initrd=$initrd ($(wc -c < "$initrd") bytes)"
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"$kexec_bin" --load "$kernel" $kexec_load_flags --initrd="$initrd" --command-line="$cmdline" --no-checks
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echo "machine will boot into guix in ${execute_delay}s"
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if [ -e /dev/kmsg ]; then
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exec >/dev/kmsg 2>&1
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else
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exec >/dev/null 2>&1
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fi
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nohup sh -c "sleep '$execute_delay' && exec '$kexec_bin' -e" &
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