Initial commit

build-rootfs.sh

@@ -0,0 +1,72 @@
+#!/bin/sh
+# vim: set sw=4 ts=4 sts=4 et :
+
+set -e
+
+. ./config
+
+mkdir -p /mnt/gentoo/usr/bin
+[ -h /mnt/gentoo/bin ] || ln -s usr/bin /mnt/gentoo/bin
+[ -h /mnt/gentoo/sbin ] || ln -s usr/sbin /mnt/gentoo/sbin
+[ -h /mnt/gentoo/usr/sbin ] || ln -s bin /mnt/gentoo/usr/sbin
+
+mkdir -p /mnt/gentoo/etc/portage
+ln -snf \
+    /var/db/repos/gentoo/profiles/${profile} \
+    /mnt/gentoo/etc/portage/make.profile
+cp -r portage/. /mnt/gentoo/etc/portage/
+
+ROOT=/mnt/gentoo \
+PORTAGE_CONFIGROOT=/mnt/gentoo \
+${target}-emerge -Kvnj \
+    sys-apps/busybox \
+    sys-apps/systemd \
+    net-misc/openssh \
+    net-misc/wget \
+    sys-fs/btrfs-progs \
+    --
+ROOT=/mnt/gentoo \
+PORTAGE_CONFIGROOT=/mnt/gentoo \
+${target}-emerge -vnj \
+    net-wireless/wireless-regdb \
+    sys-kernel/linux-firmware \
+    --
+
+mkdir -p \
+    /mnt/gentoo/boot/efi \
+    /mnt/gentoo/dev \
+    /mnt/gentoo/home \
+    /mnt/gentoo/proc \
+    /mnt/gentoo/sys \
+    || exit
+
+: > /mnt/gentoo/etc/machine-id
+
+while read name; do
+    if [ ! -h /mnt/gentoo/bin/"${name}" ]; then
+        printf "'/bin/%s' -> 'busybox'\n" "${name}"
+        ln -snf busybox /mnt/gentoo/bin/"${name}" \
+            || printf 'Failed to create busybox symlink for %s\n' "${name}"
+    fi
+done < busybox.symlinks
+
+tar -c -C overlay . \
+    | tar -x --keep-newer-files -C /mnt/gentoo
+
+cp -uv /usr/${target}/usr/bin/grub-editenv /mnt/gentoo/usr/bin/
+
+if [ -f /mnt/gentoo/etc/udev/hwdb.bin ]; then
+    mv /mnt/gentoo/etc/udev/hwdb.bin /mnt/gentoo/usr/lib/udev/
+fi
+
+systemctl preset-all --root=/mnt/gentoo
+
+systemd-sysusers --root=/mnt/gentoo
+if grep -q '^root:.*/bin/bash$' /mnt/gentoo/etc/passwd; then
+    sed -ri 's@(root:.*):/bin/bash@\1:/bin/sh@' /mnt/gentoo/etc/passwd
+fi
+
+if ! grep -q Include /mnt/gentoo/etc/ssh/sshd_config; then
+    echo 'Include /etc/ssh/sshd_config.d/*.conf' \
+        >> /mnt/gentoo/etc/ssh/sshd_config
+fi