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diff --git a/stand/kboot/Makefile b/stand/kboot/Makefile
--- a/stand/kboot/Makefile
+++ b/stand/kboot/Makefile
@@ -19,6 +19,7 @@
# Architecture-specific loader code
SRCS= crt1.c conf.c vers.c main.c host_syscalls.c hostcons.c hostdisk.c kbootfdt.c gfx_fb_stub.c
+SRCS+= init.c
SRCS+= termios.c
CFLAGS.gfx_fb_stub.c += -I${SRCTOP}/contrib/pnglite -I${SRCTOP}/sys/teken
diff --git a/stand/kboot/init.c b/stand/kboot/init.c
new file mode 100644
--- /dev/null
+++ b/stand/kboot/init.c
@@ -0,0 +1,123 @@
+/*
+ * Mini-init(8) so we can run as init in a LinuxBoot environment.
+ */
+
+#include "stand.h"
+#include "host_syscall.h"
+#include "kboot.h"
+
+/*
+ * Create a 'standard' early boot environment. Cribbed from the things that
+ * sysvinit, u-root, and initramfs-tools do. This is a minimal environment
+ * for modern Linux systems, though the /tmp, /run and /var stuff can likely
+ * be done inside the initrd image itself (as can creating the mount points
+ * for /proc, /dev and /sys).
+ *
+ * Note: We ignore errors here. There's no stderr to report them to yet. These
+ * operations generally can't fail, but if they do, we may not have the ability
+ * to report them later.
+ */
+static void
+init_fs_env(void)
+{
+ /*
+ * Create directories for mandatory filesystems and mount them.
+ */
+ host_mkdir("/proc", 0555);
+ host_mount("proc", "/proc", "proc", MS_RELATIME, "");
+ host_mkdir("/sys", 0555);
+ host_mount("sysfs", "/sys", "sysfs", MS_RELATIME, "");
+ host_mkdir("/dev", 0755);
+ host_mount("devtmpfs", "/dev", "devtmpfs", MS_RELATIME,
+ "mode=0755,nr_inodes=0");
+
+ /*
+ * Create compat links: /dev/fd lives in /proc, and needs some help to
+ * get setup.
+ */
+ host_symlink("/proc/self/fd", "/dev/fd");
+ host_symlink("fd/0", "/dev/stdin");
+ host_symlink("fd/1", "/dev/stdout");
+ host_symlink("fd/2", "/dev/stderr");
+
+
+ /*
+ * Unsure if we need this, but create a sane /tmp just in case that's useful.
+ * and point /run over to it.
+ */
+ host_mkdir("/tmp", 01777);
+ host_mount("tmpfs", "/tmp", "tmpfs", MS_RELATIME, "size=10%,mode=1777");
+ host_symlink("/tmp", "/run");
+
+ /*
+ * Unsure the loader needs /var and /var/log, but they are easy to
+ * create.
+ */
+ host_mkdir("/var", 0555);
+ host_mkdir("/var/lock", 0555);
+ host_symlink("/tmp", "/var/tmp");
+}
+
+static void
+init_tty(void)
+{
+ int fd;
+
+ /*
+ * sysvinit asks the linux kernel to convert the CTRL-ALT-DEL to a SIGINT,
+ * but we skip that.
+ */
+
+ /*
+ * Setup /dev/console as stdin/out/err
+ */
+ host_close(0);
+ host_close(1);
+ host_close(2);
+ fd = host_open("/dev/console", HOST_O_RDWR | HOST_O_NOCTTY, 0);
+ host_dup(fd);
+ host_dup(fd);
+#if 0
+ /*
+ * I think we may need to put it in 'raw' mode, but maybe not. Linux
+ * sysvinit sets it into 'sane' mode with several tweaks. Not enabled at
+ * the moment since host console initialization seems sufficient.
+ */
+ struct host_termios tty;
+
+ host_cfmakeraw(&tty);
+ host_tcsetattr(fd, HOST_TCANOW, &tty);
+ host_tcflush(fd, HOST_TCIOFLUSH)
+#endif
+}
+
+static void
+init_sig(void)
+{
+ /*
+ * since we're running as init, we need to catch some signals
+ */
+
+ /*
+ * setup signals here
+ *
+ * sysvinit catches a lot of signals, but the boot loader needn't catch
+ * so many since we don't do as much as it does. If we need to, put the
+ * signal catching / ignoring code here. If we implement a 'shell'
+ * function to spawn a sub-shell, we'll likely need to do a lot more.
+ */
+}
+
+void
+do_init(void)
+{
+ /*
+ * Only pid 1 is init
+ */
+ if (host_getpid() != 1)
+ return;
+
+ init_fs_env();
+ init_tty();
+ init_sig();
+}
diff --git a/stand/kboot/main.c b/stand/kboot/main.c
--- a/stand/kboot/main.c
+++ b/stand/kboot/main.c
@@ -261,8 +261,11 @@
const size_t heapsize = 15*1024*1024;
const char *bootdev;
+ /* Give us a sane world if we're running as init */
+ do_init();
+
/*
- * Set the heap to one page after the end of the loader.
+ * Setup the heap 15MB should be plenty
*/
heapbase = host_getmem(heapsize);
setheap(heapbase, heapbase + heapsize);

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