baseinit: Started work on rc.boot.

core/baseinit/checksums

@@ -1,2 +1,2 @@
 c65d69ade8d0bf6d92d01545323acff68c43cb1296bae8efcbf03faa5b0c653c  inittab
-e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855  rc.boot
+8e243f895741287fecd52a73b354c1bba846dd0312648be7656ea6d84c955e73  rc.boot

core/baseinit/files/rc.boot

@@ -0,0 +1,36 @@
+#!/bin/sh
+
+PATH=/usr/bin:/usr/sbin
+
+log() {
+    printf '\e[31;1m=>\e[m %s\n' "$@"
+}
+
+mnt() {
+    mountpoint -q "$1" || {
+        dir=$1
+        shift
+        mount "$@" "$dir"
+    }
+}
+
+log "Welcome to KISS!"
+log "Mounting pseudo filesystems..."
+
+mnt /proc -o nosuid,noexec,nodev    -t proc     proc
+mnt /sys  -o nosuid,noexec,nodev    -t sysfs    sys
+mnt /run  -o mode=0755,nosuid,nodev -t tmpfs    run
+mnt /dev  -o mode=0755,nosuid       -t devtmpfs dev
+
+# shellcheck disable=2174
+mkdir -pm 0755 /run/runit \
+               /run/lvm   \
+               /run/user  \
+               /run/lock  \
+               /run/log   \
+               /dev/pts   \
+               /dev/shm
+
+mnt /dev/pts -o mode=0620,gid=5,nosuid,noexec -nt devpts     devpts
+mnt /dev/shm -o mode=1777,nosuid,nodev        -nt tmpfs      shm
+mnt /sys/kernel/security                      -nt securityfs securityfs