131 lines
2.9 KiB
Nix
131 lines
2.9 KiB
Nix
{
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pkgs,
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patosPkgs,
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...
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}:
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pkgs.writeShellApplication {
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name = "mkinitrd";
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runtimeInputs = with pkgs; [
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cpio
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gzip
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];
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text = ''
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echo "Building initram disk"
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mkdir -p root
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pushd root
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### copy rootfs
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cp -prP ${patosPkgs.rootfs}/* .
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find . -type d -exec chmod 755 {} \;
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### create directories
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mkdir -p etc dev proc sys tmp root
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ln -sf usr/bin bin
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ln -sf usr/bin sbin
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ln -sf usr/lib lib
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ln -sf usr/lib lib64
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ln -sf ../proc/self/mounts etc/mtab
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ln -sf ../usr/lib/systemd/systemd init
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# set default target to basic
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mkdir usr/lib/systemd/system/basic.target.wants
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ln -sf basic.target usr/lib/systemd/system/default.target
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# enable dbus broker
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ln -sf ../dbus-broker.service usr/lib/systemd/system/basic.target.wants/dbus.service
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ln -sf ../dbus.socket usr/lib/systemd/system/sockets.target.wants/dbus.socket
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### Create needed files
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echo patos > ./etc/hostname
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cat <<EOF > ./etc/os-release
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NAME="PatOS"
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PRETTY_NAME="PatOS Platform"
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ID=patos
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EOF
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cat <<EOF > ./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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EOF
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chmod 644 ./etc/passwd
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cat <<EOF > ./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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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 ./etc/group
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# FIXME: remove this later (just to get a shell in the initramfs)
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cat <<EOF > usr/lib/systemd/system/demo.service
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[Unit]
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Description=Debug Shell (/bin/sulogin)
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Conflicts=shutdown.target
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Before=shutdown.target
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[Service]
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Environment=HOME=/root
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WorkingDirectory=/root
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ExecStart=/bin/sulogin
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Type=idle
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StandardInput=tty-force
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StandardOutput=inherit
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StandardError=inherit
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KillMode=process
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IgnoreSIGPIPE=no
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SendSIGHUP=yes
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Restart=always
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[Install]
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WantedBy=basic.target
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EOF
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ln -sf ../demo.service usr/lib/systemd/system/basic.target.wants/demo.service
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# gen initrd
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find . -print0 | cpio --null --owner=root:root -o --format=newc | gzip -9 > ../initrd.gz
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popd
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rm -rf root
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'';
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}
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