137 lines
2.6 KiB
Bash
137 lines
2.6 KiB
Bash
#! /bin/sh
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set -efu
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prepare() {(
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if test -e /etc/os-release; then
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. /etc/os-release
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case $ID in
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arch)
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prepare_arch "$@"
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exit
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;;
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centos)
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case $VERSION_ID in
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6)
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prepare_centos "$@"
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exit
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;;
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7)
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prepare_centos "$@"
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exit
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;;
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esac
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;;
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debian)
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case $VERSION_ID in
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7)
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prepare_debian "$@"
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exit
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;;
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8)
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prepare_debian "$@"
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exit
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;;
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esac
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;;
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esac
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elif test -e /etc/centos-release; then
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case $(cat /etc/centos-release) in
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'CentOS release 6.5 (Final)')
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prepare_centos "$@"
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exit
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;;
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esac
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fi
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echo "$0 prepare: unknown OS" >&2
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exit -1
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)}
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prepare_arch() {
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type bzip2 2>/dev/null || pacman -S --noconfirm bzip2
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type git 2>/dev/null || pacman -S --noconfirm git
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type rsync 2>/dev/null || pacman -S --noconfirm rsync
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prepare_common
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}
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prepare_centos() {
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type bzip2 2>/dev/null || yum install -y bzip2
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type git 2>/dev/null || yum install -y git
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type rsync 2>/dev/null || yum install -y rsync
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prepare_common
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}
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prepare_debian() {
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apt-get update
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type bzip2 2>/dev/null || apt-get install bzip2
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type git 2>/dev/null || apt-get install git
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type rsync 2>/dev/null || apt-get install rsync
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prepare_common
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}
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prepare_common() {
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if ! getent group nixbld >/dev/null; then
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groupadd -g 30000 -r nixbld
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fi
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for i in `seq 1 10`; do
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if ! getent passwd nixbld$i 2>/dev/null; then
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useradd \
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-d /var/empty \
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-g 30000 \
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-G 30000 \
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-l \
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-M \
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-s /sbin/nologin \
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-u $(expr 30000 + $i) \
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nixbld$i
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fi
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done
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#
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# mount install directory
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#
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if ! mount | grep -Fq ' on /mnt type '; then
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mkdir -p /newshit
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mount --bind /newshit /mnt
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fi
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if ! mount | grep -Fq ' on /mnt/boot type '; then
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mkdir -p /mnt/boot
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if mount | grep -Fq ' on /boot type '; then
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bootdev=$(mount | grep " on /boot type " | sed 's/ .*//')
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mount $bootdev /mnt/boot
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else
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mount --bind /boot/ /mnt/boot
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fi
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fi
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#
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# prepare install directory
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#
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rootpart=$(mount | grep " on / type" | sed 's/ .*//')
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mkdir -p /mnt/etc/nixos
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mkdir -m 0555 -p /mnt/var/empty
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if ! mount | grep -Fq "$rootpart on /mnt/root type "; then
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mkdir -p /mnt/root
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mount --bind /root /mnt/root
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fi
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#
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# prepare nix store path
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#
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mkdir -v -m 0755 -p /nix
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if ! mount | grep -Fq "$rootpart on /mnt/nix type "; then
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mkdir -p /mnt/nix
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mount --bind /nix /mnt/nix
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fi
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}
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prepare "$@"
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