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https://github.com/elitak/nixos-infect.git
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Pretiffied code.
This commit is contained in:
samoht9277
parent
eb99b96d43
commit
c392f82482
1 changed files with 201 additions and 247 deletions
126
nixos-infect
126
nixos-infect
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@ -3,30 +3,21 @@
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set -e -o pipefail
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makeConf() {
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# Skip everything if main config already present
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[[ -e /etc/nixos/configuration.nix ]] && return 0
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# Lightsail config is not like the others
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if [ "$PROVIDER" = "lightsail" ]; then
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makeLightsailConf
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return 0
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fi
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# NB <<"EOF" quotes / $ ` in heredocs, <<EOF does not
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mkdir -p /etc/nixos
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# Prevent grep for sending error code 1 (and halting execution) when no lines are selected : https://www.unix.com/man-page/posix/1P/grep
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local IFS=$'\n'
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for trypath in /root/.ssh/authorized_keys /home/$SUDO_USER/.ssh/authorized_keys $HOME/.ssh/authorized_keys; do
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[[ -r "$trypath" ]] \
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&& keys=$(sed -E 's/^.*((ssh|ecdsa)-[^[:space:]]+)[[:space:]]+([^[:space:]]+)([[:space:]]*.*)$/\1 \3\4/' "$trypath") \
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&& [[ ! -z "$keys" ]] \
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&& break
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done
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local network_import=""
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[[ -n "$doNetConf" ]] && network_import="./networking.nix # generated at runtime by nixos-infect"
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cat > /etc/nixos/configuration.nix << EOF
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{ config, pkgs, ... }: {
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{ config, pkgs, ... }:
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{
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imports = [
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./hardware-configuration.nix
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$network_import
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@ -34,13 +25,14 @@ makeConf() {
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];
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nix.settings = {
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# Enable flakes and new 'nix' command
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experimental-features = "nix-command flakes";
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# Deduplicate and optimize nix store
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auto-optimise-store = true;
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};
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boot.loader.systemd-boot.enable = true;
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boot.loader.efi.canTouchEfiVariables = true;
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boot.cleanTmpDir = true;
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zramSwap.enable = false;
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networking.hostName = "$(hostname -s)";
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@ -112,8 +104,7 @@ makeConf() {
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EOF
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if isEFI; then
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bootcfg=$(
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cat <<EOF
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bootcfg=$(cat << EOF
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boot.loader.grub = {
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efiSupport = true;
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efiInstallAsRemovable = true;
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@ -123,8 +114,7 @@ EOF
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EOF
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)
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else
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bootcfg=$(
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cat <<EOF
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bootcfg=$(cat << EOF
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boot.loader.grub.device = "$grubdev";
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EOF
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)
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@ -176,8 +166,7 @@ makeNetworkingConf() {
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eth1_ip4s=$(ip address show dev "$eth1_name" | grep 'inet ' | sed -r 's|.*inet ([0-9.]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|')
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eth1_ip6s=$(ip address show dev "$eth1_name" | grep 'inet6 ' | sed -r 's|.*inet6 ([0-9a-f:]+)/([0-9]+).*|{ address="\1"; prefixLength=\2; }|' || '')
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ether1=$(ip address show dev "$eth1_name" | grep link/ether | sed -r 's|.*link/ether ([0-9a-f:]+) .*|\1|')
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interfaces1=$(
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cat <<EOF
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interfaces1=$(cat << EOF
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$eth1_name = {
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ipv4.addresses = [$(for a in "${eth1_ip4s[@]}"; do echo -n "
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$a"; done)
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@ -278,14 +267,11 @@ findESP() {
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esp=""
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for d in /boot/EFI /boot/efi /boot; do
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[[ ! -d "$d" ]] && continue
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[[ "$d" == "$(df "$d" --output=target | sed 1d)" ]] &&
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esp="$(df "$d" --output=source | sed 1d)" &&
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break
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[[ "$d" == "$(df "$d" --output=target | sed 1d)" ]] \
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&& esp="$(df "$d" --output=source | sed 1d)" \
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&& break
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done
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[[ -z "$esp" ]] && {
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echo "ERROR: No ESP mount point found"
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return 1
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}
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[[ -z "$esp" ]] && { echo "ERROR: No ESP mount point found"; return 1; }
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for uuid in /dev/disk/by-uuid/*; do
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[[ $(readlink -f "$uuid") == "$esp" ]] && echo $uuid && return 0
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done
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@ -316,32 +302,30 @@ prepareEnv() {
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fakeCurlUsingWget() {
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# Use adapted wget if curl is missing
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which wget && {
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which wget && { \
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curl() {
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eval "wget $(
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(
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local isStdout=1
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(local isStdout=1
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for arg in "$@"; do
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case "$arg" in
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"-o")
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echo "-O"
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echo "-O";
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isStdout=0
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;;
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"-O")
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isStdout=0
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;;
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"-L") ;;
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"-L")
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;;
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*)
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echo "$arg"
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;;
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esac
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done
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done;
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[[ $isStdout -eq 1 ]] && echo "-O-"
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)| tr '\n' ' '
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)"
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}
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export -f curl
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}
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}; export -f curl; }
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}
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req() {
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@ -349,56 +333,29 @@ req() {
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}
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checkEnv() {
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[[ "$(whoami)" == "root" ]] || {
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echo "ERROR: Must run as root"
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return 1
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}
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[[ "$(whoami)" == "root" ]] || { echo "ERROR: Must run as root"; return 1; }
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# Perform some easy fixups before checking
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# TODO prevent multiple calls to apt-get update
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(which dnf && dnf install -y perl-Digest-SHA) || true # Fedora 24
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which bzcat || (which yum && yum install -y bzip2) ||
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(which apt-get && apt-get update && apt-get install -y bzip2) ||
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true
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which xzcat || (which yum && yum install -y xz-utils) ||
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(which apt-get && apt-get update && apt-get install -y xz-utils) ||
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true
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which curl || fakeCurlUsingWget ||
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(which apt-get && apt-get update && apt-get install -y curl) ||
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true
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which bzcat || (which yum && yum install -y bzip2) \
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|| (which apt-get && apt-get update && apt-get install -y bzip2) \
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|| true
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which xzcat || (which yum && yum install -y xz-utils) \
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|| (which apt-get && apt-get update && apt-get install -y xz-utils) \
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|| true
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which curl || fakeCurlUsingWget \
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|| (which apt-get && apt-get update && apt-get install -y curl) \
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|| true
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req curl || req wget || {
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echo "ERROR: Missing both curl and wget"
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return 1
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}
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req bzcat || {
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echo "ERROR: Missing bzcat"
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return 1
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}
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req xzcat || {
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echo "ERROR: Missing xzcat"
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return 1
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}
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req groupadd || {
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echo "ERROR: Missing groupadd"
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return 1
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}
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req useradd || {
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echo "ERROR: Missing useradd"
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return 1
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}
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req ip || {
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echo "ERROR: Missing ip"
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return 1
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}
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req awk || {
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echo "ERROR: Missing awk"
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return 1
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}
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req cut || req df || {
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echo "ERROR: Missing coreutils (cut, df)"
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return 1
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}
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req curl || req wget || { echo "ERROR: Missing both curl and wget"; return 1; }
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req bzcat || { echo "ERROR: Missing bzcat"; return 1; }
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req xzcat || { echo "ERROR: Missing xzcat"; return 1; }
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req groupadd || { echo "ERROR: Missing groupadd"; return 1; }
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req useradd || { echo "ERROR: Missing useradd"; return 1; }
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req ip || { echo "ERROR: Missing ip"; return 1; }
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req awk || { echo "ERROR: Missing awk"; return 1; }
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req cut || req df || { echo "ERROR: Missing coreutils (cut, df)"; return 1; }
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# On some versions of Oracle Linux these have the wrong permissions,
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# which stops sshd from starting when NixOS boots
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@ -426,7 +383,8 @@ infect() {
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nix-channel --add "https://nixos.org/channels/$NIX_CHANNEL" nixos
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nix-channel --update
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if [[ $NIXOS_CONFIG = http* ]]; then
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if [[ $NIXOS_CONFIG = http* ]]
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then
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curl $NIXOS_CONFIG -o /etc/nixos/configuration.nix
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unset NIXOS_CONFIG
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fi
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@ -462,11 +420,7 @@ infect() {
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rm -rf /boot.bak
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isEFI && umount "$esp"
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mv -v /boot /boot.bak || {
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cp -a /boot /boot.bak
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rm -rf /boot/*
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umount /boot
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}
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mv -v /boot /boot.bak || { cp -a /boot /boot.bak ; rm -rf /boot/* ; umount /boot ; }
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if isEFI; then
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mkdir -p /boot
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mount "$esp" /boot
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