feat(image): install upstream kexec which now have support for UKIs
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0a0e9127e0
commit
7365ef8918
13 changed files with 74 additions and 7 deletions
32
pkgs/rootfs/default.nix
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32
pkgs/rootfs/default.nix
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@ -0,0 +1,32 @@
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{
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pkgs,
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stdenvNoCC,
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patosPkgs,
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version,
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...
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}:
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let
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pname = "patos-rootfs";
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in
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stdenvNoCC.mkDerivation (finalAttrs: {
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inherit version;
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inherit pname;
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buildInputs = with pkgs; [
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glibc
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binutils
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];
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glibcPatos = patosPkgs.glibc.out;
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systemd = patosPkgs.systemd.out;
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dbusBroker = patosPkgs.dbus-broker.out;
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kernel = patosPkgs.kernel.kernel;
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busybox = pkgs.busybox.out;
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kmodLibs = pkgs.kmod.lib;
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kmodBin = pkgs.kmod.out;
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libbpf = pkgs.libbpf.out;
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btrfs = pkgs.btrfs-progs.out;
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kexec = patosPkgs.kexec.out;
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builder = ./mkrootfs.sh;
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})
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23
pkgs/rootfs/mkinitrd.nix
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23
pkgs/rootfs/mkinitrd.nix
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{
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pkgs,
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stdenvNoCC,
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patosPkgs,
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version,
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...
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}:
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let
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pname = "patos-ramdisk";
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in
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stdenvNoCC.mkDerivation (finalAttrs: {
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inherit version;
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inherit pname;
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buildInputs = with pkgs; [
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cpio
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xz
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];
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rootfs = patosPkgs.rootfs.out;
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builder = ./mkinitrd.sh;
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})
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23
pkgs/rootfs/mkinitrd.sh
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23
pkgs/rootfs/mkinitrd.sh
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@ -0,0 +1,23 @@
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set -ex -p pipefail
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echo "Building initram disk"
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mkdir -p $out/root
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pushd $out/root
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### copy rootfs
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cp -prP $rootfs/* .
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find . -type d -exec chmod 755 {} \;
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mkdir sysroot
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### create directories
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ln -sf ../usr/lib/systemd/systemd init
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### Create needed files
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echo patos > ./etc/hostname
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ln -sf /etc/os-release ./etc/initrd-release
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# gen initrd
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find . -print0 | cpio --null --owner=root:root -o --format=newc | xz -9 --check=crc32 > ../initrd.xz
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popd
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rm -rf $out/root
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200
pkgs/rootfs/mkrootfs.sh
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200
pkgs/rootfs/mkrootfs.sh
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set -ex -o pipefail
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### create directory structure
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mkdir -p $out/etc/repart.d $out/dev $out/proc $out/sys $out/tmp $out/root $out/run $out/boot $out/mnt $out/home $out/srv $out/var/tmp
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ln -sf /usr/bin $out/bin
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ln -sf /usr/bin $out/sbin
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ln -sf /usr/lib $out/lib
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ln -sf /usr/lib $out/lib64
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ln -sf ../proc/self/mounts $out/etc/mtab
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### install systemd
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echo "Installing systemd"
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cp -Pr $systemd/* $out/
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find $out -type d -exec chmod 755 {} \;
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rm -rf $out/usr/include
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rm -rf $out/usr/sbin
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rm -f $out/usr/lib/systemd/system/sysinit.target.wants/systemd-firstboot.service
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rm -f $out/usr/lib/systemd/ukify
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rm -f $out/usr/bin/ukify
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rm -f $out/usr/lib/udev/rules.d/90-vconsole.rules
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cat <<EOF > $out/etc/os-release
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NAME=PatOS
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PRETTY_NAME=PatOS v${version} (Pre-Alpha)
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IMAGE_ID=patos
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ID=patos
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IMAGE_VERSION=${version}
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VERSION=${version}
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VERSION_ID={version}
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BUILD_ID={version}
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EOF
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cat <<EOF > $out/etc/issue
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<<< Welcome to PatOS v${version} (Pre-Alpha) (\m) - \l >>>
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EOF
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# replace agetty with busybox getty
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sed -i 's#ExecStart=.*#ExecStart=-/sbin/getty -L %I 115200 vt100#' $out/usr/lib/systemd/system/serial-getty@.service
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sed -i 's#After=\(.*\)#After=sysroot.mount \1#' $out/usr/lib/systemd/system/systemd-repart.service
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cat <<EOF > $out/etc/repart.d/10-esp.conf
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[Partition]
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Type=esp
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Format=vfat
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EOF
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cat <<EOF > $out/etc/repart.d/22-root.conf
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[Partition]
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Type=root
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EOF
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cat <<EOF > $out/etc/repart.d/40-var.conf
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[Partition]
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Type=var
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UUID=4d21b016-b534-45c2-a9fb-5c16e091fd2d
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Format=btrfs
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Label=patos-state
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Minimize=off
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FactoryReset=yes
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SizeMinBytes=1G
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SplitName=-
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EOF
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cat <<EOF > $out/usr/lib/systemd/system/var.mount
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[Unit]
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Description=Mount for /var
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Before=local-fs.target
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After=systemd-repart.service
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[Mount]
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What=/dev/disk/by-label/patos-state
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Where=/var
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Type=btrfs
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Options=defaults
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[Install]
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WantedBy=multi-user.target
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EOF
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cat <<EOF > $out/usr/lib/systemd/system/etc.mount
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[Unit]
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Description=Overlay mount for /etc
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Before=local-fs.target
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[Mount]
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What=overlay
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Where=/etc
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Type=overlay
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Options=lowerdir=/etc,upperdir=/run/.rw-etc/upper,workdir=/run/.rw-etc/work
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[Install]
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WantedBy=local-fs.target
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EOF
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### install PatOS glibc
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cp -P $glibcPatos/lib/*.so* $out/usr/lib/
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### install kernel modules
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cp -r $kernel/lib/modules $out/usr/lib/
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find $out/usr/lib/modules -type d -exec chmod 755 {} \;
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### install busybox
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cp $busybox/bin/busybox $out/usr/bin/
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$out/usr/bin/busybox --list | xargs -I {} ln -sf busybox $out/usr/bin/{}
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### install dbus broker
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cp -r $dbusBroker/* $out/
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### install kexec
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cp -Pr ${kexec}/sbin/kexec $out/usr/bin/
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### install btrfs progs
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cp -Pr ${btrfs}/bin/* $out/usr/bin/
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cp -Pr ${btrfs}/lib/* $out/usr/lib/
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### install lib kmod
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cp -P $kmodLibs/lib/* $out/usr/lib
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cp -P $kmodBin/bin/* $out/usr/bin
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### install libbpf
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cp -P $libbpf/lib/libbpf* $out/usr/lib
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# remove pkgconfig
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rm -rf $out/usr/lib/pkgconfig
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cat <<EOF > $out/etc/passwd
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root::0:0:root:/root:/bin/sh
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bin:x:1:1:bin:/bin:/usr/bin/nologin
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daemon:x:2:2:daemon:/:/usr/bin/nologin
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mail:x:8:12:mail:/var/spool/mail:/usr/bin/nologin
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ftp:x:14:11:ftp:/srv/ftp:/usr/bin/nologin
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http:x:33:33:http:/srv/http:/usr/bin/nologin
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uuidd:x:68:68:uuidd:/:/usr/bin/nologin
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messagebus:x:81:81:messagebus:/:/usr/bin/nologin
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nobody:x:99:99:nobody:/:/usr/bin/nologin
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systemd-coredump:x:151:992::/var/empty:/usr/bin/nologin
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systemd-network:x:152:152::/var/empty:/usr/bin/nologin
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systemd-resolve:x:153:153::/var/empty:/usr/bin/nologin
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systemd-timesync:x:154:154::/var/empty:/usr/bin/nologin
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EOF
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chmod 644 $out/etc/passwd
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cat <<EOF > $out/etc/group
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root:x:0:root
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bin:x:1:root,bin,daemon
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daemon:x:2:root,bin,daemon
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sys:x:3:root,bin
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adm:x:4:root,daemon
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tty:x:5:
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disk:x:6:root
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lp:x:7:daemon
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mem:x:8:
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kmem:x:9:
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wheel:x:10:root
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ftp:x:11:
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mail:x:12:
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uucp:x:14:
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log:x:19:root
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utmp:x:20:
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locate:x:21:
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rfkill:x:24:
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smmsp:x:25:
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proc:x:26:
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http:x:33:
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games:x:50:
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lock:x:54:
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uuidd:x:68:
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messagebus:x:81:
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systemd-journal:x:62:
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systemd-network:x:152:
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systemd-resolve:x:153:
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systemd-timesync:x:154:
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systemd-oom:x:991:
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systemd-coredump:x:992:
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network:x:90:
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video:x:91:
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audio:x:92:
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optical:x:93:
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floppy:x:94:
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storage:x:95:
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scanner:x:96:
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input:x:97:
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power:x:98:
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nobody:x:99:
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EOF
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chmod 644 $out/etc/group
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### Find and install all shared libs
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find $out -type f -executable -exec ldd {} \; | awk '{print $3}' | grep -v systemd | grep -v glibc | sort -u | xargs cp -t $out/usr/lib
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find $out -type f -executable -exec chmod 755 {} \;
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# FIXME: ELF patching. Is there a better way?
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find $out -type f -executable -exec patchelf --set-rpath /lib:/usr/lib:/usr/lib/systemd {} \;
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find $out -type f -executable -exec patchelf --set-interpreter /lib/ld-linux-x86-64.so.2 {} \;
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patchelf --remove-rpath $out/usr/lib/ld-linux-x86-64.so.2
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# strip binaries
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find $out -type f -executable -exec strip {} \;
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find $out -type d -exec chmod 755 {} \;
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