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nixos: 支持安装 nixos

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bin456789
2024-08-19 00:42:12 +08:00
parent a1d1d613d4
commit f82c9ad784
4 changed files with 369 additions and 11 deletions
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327
trans.sh
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@ -340,7 +340,7 @@ EOF
}
umount_all() {
dirs="/mnt /os /iso /wim /installer /nbd /nbd-boot /nbd-efi /root"
dirs="/mnt /os /iso /wim /installer /nbd /nbd-boot /nbd-efi /root /nix"
regex=$(echo "$dirs" | sed 's, ,|,g')
if mounts=$(mount | grep -Ew "$regex" | awk '{print $3}' | tac); then
for mount in $mounts; do
@ -359,6 +359,7 @@ clear_previous() {
dmsetup remove_all
fi
disconnect_qcow
rc-service --ifexists --ifstarted nix-daemon stop
swapoff -a
umount_all
@ -820,6 +821,164 @@ EOF
done
}
space_to_newline() {
sed 's/ /\n/g'
}
trim() {
sed -e 's/^[[:space:]]*//' -e 's/[[:space:]]*$//'
}
quote_word() {
sed -E 's/([^[:space:]]+)/"\1"/g'
}
quote_line() {
awk '{print "\""$0"\""}'
}
add_space() {
space_count=$1
spaces=$(printf '%*s' "$space_count" '')
sed "s/^/$spaces/"
}
# 不够严谨，谨慎使用
nix_replace() {
local key=$1
local value=$2
local type=$3
local file=$4
local key_ value_
key_=$(echo "$key" | sed 's \. \\\. g') # . 改成 \.
if [ "$type" = array ]; then
local value_="[ $value ]"
fi
sed -i "s/$key_ =.*/$key = $value_;/" "$file"
}
create_nixos_network_config() {
conf_file=$1
true >$conf_file
# 头部
cat <<EOF >>$conf_file
networking = {
usePredictableInterfaceNames = false;
EOF
for ethx in $(get_eths); do
# ipv4
if is_staticv4; then
get_netconf_to ipv4_addr
get_netconf_to ipv4_gateway
IFS=/ read -r address prefix < <(echo "$ipv4_addr")
cat <<EOF >>$conf_file
interfaces.$ethx.ipv4.addresses = [
{
address = "$address";
prefixLength = $prefix;
}
];
defaultGateway = {
address = "$ipv4_gateway";
interface = "$ethx";
};
EOF
fi
# ipv6
if is_staticv6; then
get_netconf_to ipv6_addr
get_netconf_to ipv6_gateway
IFS=/ read -r address prefix < <(echo "$ipv6_addr")
cat <<EOF >>$conf_file
interfaces.$ethx.ipv6.addresses = [
{
address = "$address";
prefixLength = $prefix;
}
];
defaultGateway = {
address = "$ipv6_gateway";
interface = "$ethx";
};
EOF
fi
done
# 全局 dns
need_set_dns=false
for ethx in $(get_eths); do
if is_staticv4 || is_staticv6 || is_need_manual_set_dnsv6; then
need_set_dns=true
break
fi
done
if $need_set_dns; then
cat <<EOF >>$conf_file
nameservers = [
$(get_current_dns | quote_line | add_space 4)
];
EOF
fi
# 尾部
cat <<EOF >>$conf_file
};
EOF
# nixos 默认网络管理器是 dhcpcd
# 但配置静态 ip 时用的是脚本
# /nix/store/qcr1xxjdxcrnwqwrgysqpxx2aibp9fdl-unit-script-network-addresses-eth0-start/bin/network-addresses-eth0-start
# ...
# if out=$(ip addr replace "181.x.x.x/24" dev "eth0" 2>&1); then
# echo "done"
# else
# echo "'ip addr replace "181.x.x.x/24" dev "eth0"' failed: $out"
# exit 1
# fi
# ...
# 禁用 ra
for ethx in $(get_eths); do
if should_disable_ra_slaac; then
mode=1
if [ "$mode" = 1 ]; then
cat <<EOF >>$conf_file
boot.kernel.sysctl."net.ipv6.conf.$ethx.accept_ra" = false;
EOF
elif [ "$mode" = 2 ]; then
# nixos 配置静态 ip 时用的是脚本
# 好像因此不起作用
cat <<EOF >>$conf_file
networking.dhcpcd.extraConfig =
''
interface $ethx
ipv6ra_noautoconf
'';
EOF
elif [ "$mode" = 3 ]; then
# 暂时没用到 networkd
cat <<EOF >>$conf_file
systemd.network.networks.$ethx = {
matchConfig.Name = "$ethx";
networkConfig = {
IPv6AcceptRA = false;
};
};
EOF
fi
fi
done
}
install_alpine() {
hack_lowram_modloop=true
hack_lowram_swap=true
@ -986,6 +1145,166 @@ get_build_threads() {
min $threads_by_ram $threads_by_core
}
install_nixos() {
os_dir=/os
keep_swap=true
# 挂载分区，创建 swapfile
mount_part_basic_layout /os /os/efi
need_ram=2048
swap_size=$(get_need_swap_size $need_ram)
create_swap_if_ram_less_than $need_ram /os/swapfile
# 步骤
# 1. 安装 nix (nix-xxx)
# 2. 用 nix 安装 nixos-install-tools (nixos-xxx)
# 3. 运行 nixos-generate-config 生成配置 + 编辑
# 4. 运行 nixos-install
# nix 安装方式 分支 版本
# apk add nix 3.20 2.22.0 # nix 本体跟正常的软件一样，不在 /nix/store 里面
# env -iA nixpkgs.nix 24.05 2.18.5
# sh <(curl -L https://nixos.org/nix/install) unstable? 2.24.2
# 安装 nix
mkdir -p /os/nix /nix
mount --bind /os/nix /nix
apk add nix
# TODO: 有时安装系统时会出错，卡在
# copying path '/nix/store/gcbrjlfm5h21ybf1h2lfq773zafjmzjr-curl-8.7.1-man' from 'https://cache.nixos.org'...
# 但是 cpu 空载
# 设置 nix 镜像和线程
# alpine 默认设置了 4 线程
# https://gitlab.alpinelinux.org/alpine/aports/-/blob/master/community/nix/APKBUILD#L125
sed -i '/max-jobs/d' /etc/nix/nix.conf
echo "max-jobs = $(get_build_threads 2048)" >>/etc/nix/nix.conf
if is_in_china; then
echo "substituters = $mirror/store" >>/etc/nix/nix.conf
fi
rc-service nix-daemon restart
# 添加 channel
# shellcheck disable=SC2154
nix-channel --add $mirror/nixos-$releasever nixpkgs
nix-channel --update
# 安装 channal 的 nix
# shellcheck source=/dev/null
if false; then
nix-env -iA nixpkgs.nix
. ~/.nix-profile/etc/profile.d/nix.sh
fi
# 安装 nixos-install-tools
nix-env -iA nixpkgs.nixos-install-tools
# 添加 nix-env 安装的软件到 PATH
PATH="/root/.nix-profile/bin:$PATH"
# 生成配置
nixos-generate-config --root /os
# configuration.nix
if is_efi; then
nix_bootloader="boot.loader.efi.efiSysMountPoint = \"/efi\";"
else
nix_bootloader="boot.loader.grub.device = \"/dev/$xda\";"
fi
if is_in_china; then
nix_substituters="nix.settings.substituters = lib.mkForce [ \"$mirror/store\" ];"
fi
if [ -e /os/swapfile ] && $keep_swap; then
nix_swap="swapDevices = [{ device = \"/swapfile\"; size = $swap_size; }];"
fi
# TODO: 准确匹配网卡，添加 udev 或者直接配置 networkd 匹配 mac
create_nixos_network_config /tmp/nixos_network_config.nix
# sed -e '1s/^/\n/' -e '$a\\' # 也可以在前后添加空行
{
echo # 前面的空行
cat <<EOF | add_space 2 | del_empty_lines
############### Add by reinstall.sh ###############
$nix_bootloader
$nix_swap
$nix_substituters
boot.kernelParams = [ $(get_ttys console= | quote_word) ];
services.openssh.enable = true;
services.openssh.settings.PermitRootLogin = "yes";
$(cat /tmp/nixos_network_config.nix)
###################################################
EOF
echo # 后面的空行
} | insert_into_file /os/etc/nixos/configuration.nix before "networking.hostName" -F
# hardware-configuration.nix
# 在 vultr efi 机器上，nixos-generate-config 不会添加 virtio_pci
# 导致 virtio_blk 用不了，启动时 initrd 找不到系统分区
# 可能由于 alpine 的 virtio_pci 编译进内核而不是模块，所以不会添加到配置文件
olds=$(
grep -F 'boot.initrd.availableKernelModules' /os/etc/nixos/hardware-configuration.nix |
cut -d= -f2 | tr -d '"[];' | xargs
)
alls="$olds"
for mod in ata_piix uhci_hcd sr_mod nvme \
virtio_pci virtio_blk virtio_scsi \
xen_blkfront xen_scsifront \
hv_storvsc \
vmw_pvscsi \
mptspi; do
if [ -d /sys/module/$mod ] && ! echo "$olds" | grep -wq "$mod"; then
echo "Adding modules: $mod"
alls="$alls $mod"
fi
done
# 去除多余的空格
alls=$(echo "$alls" | xargs)
# boot.initrd.availableKernelModules = [ "ata_piix" "uhci_hcd" "virtio_pci" "sr_mod" "virtio_blk" ];
nix_replace \
boot.initrd.availableKernelModules \
"$(echo "$alls" | quote_word)" \
array \
/os/etc/nixos/hardware-configuration.nix
# 安装系统
nixos-install --root /os --no-root-passwd -j "$(get_build_threads 2048)"
# 设置密码
echo "root:$PASSWORD" | nixos-enter --root /os -- \
/run/current-system/sw/bin/chpasswd
# 设置 channel
if is_in_china; then
nixos-enter --root /os -- \
/run/current-system/sw/bin/nix-channel \
--add https://mirrors.cernet.edu.cn/nix-channels/nixos-$releasever nixos
fi
# 清理
nix-env -e '*'
# /nix/var/nix/profiles/system/sw/bin/nix-collect-garbage -d
/nix/var/nix/profiles/system/sw/bin/nixos-enter --root /os -- /run/current-system/sw/bin/nix-collect-garbage -d
# 删除 nix
umount /nix
apk del nix
# swapfile
if [ -e /os/swapfile ]; then
if $keep_swap; then
:
else
swapoff -a
rm -rf /os/swapfile
fi
fi
}
install_arch_gentoo() {
set_locale() {
echo "C.UTF-8 UTF-8" >>$os_dir/etc/locale.gen
@ -1442,7 +1761,7 @@ create_part() {
mkfs.ext4 -E nodiscard -F -L os /dev/$xda*1 #1 os
mkfs.ext4 -E nodiscard -F -L installer /dev/$xda*2 #2 installer
fi
elif [ "$distro" = alpine ] || [ "$distro" = arch ] || [ "$distro" = gentoo ]; then
elif [ "$distro" = alpine ] || [ "$distro" = arch ] || [ "$distro" = gentoo ] || [ "$distro" = nixos ]; then
if is_efi; then
# efi
parted /dev/$xda -s -- \
@ -3776,6 +4095,10 @@ else
create_part
install_arch_gentoo
;;
nixos)
create_part
install_nixos
;;
*)
create_part
mount_part_for_iso_installer