Add /etc/inittab, /etc/passwd, /etc/group

Makefile

@@ -15,7 +15,10 @@ SYSROOT  = $(SRC)/sysroot
 
 SYSROOT_TARGETS = \
 	$(SYSROOT)/bin/busybox    \
+	$(SYSROOT)/etc/group      \
 	$(SYSROOT)/etc/hosts      \
+	$(SYSROOT)/etc/inittab    \
+	$(SYSROOT)/etc/passwd     \
 	$(SYSROOT)/etc/shells     \
 	$(SYSROOT)/usr/lib/libc.a
 

etc/group

@@ -0,0 +1 @@
+root:x:0:root

etc/inittab

@@ -0,0 +1,6 @@
+tty1::respawn:/sbin/getty 38400 tty1
+tty2::respawn:/sbin/getty 38400 tty2
+tty3::respawn:/sbin/getty 38400 tty3
+tty4::respawn:/sbin/getty 38400 tty4
+tty5::respawn:/sbin/getty 38400 tty5
+tty6::respawn:/sbin/getty 38400 tty6

etc/passwd

@@ -0,0 +1 @@
+root::0:0:root:/root:/bin/sh

make/busybox.mk

@@ -101,3 +101,5 @@ $(BUILDDIR)/busybox/.config: musl-gcc.specs
 	$(SED) -i 's!^#* *CONFIG_FEATURE_VI_REGEX_SEARCH[ =].*$$!CONFIG_FEATURE_VI_REGEX_SEARCH=n!' $(BUILDDIR)/busybox/.config
 	$(SED) -i 's!^#* *CONFIG_IFPLUGD[ =].*$$!CONFIG_IFPLUGD=n!'                   $(BUILDDIR)/busybox/.config
 	$(SED) -i 's!^#* *CONFIG_PAM[ =].*$$!CONFIG_PAM=n!'                           $(BUILDDIR)/busybox/.config
+	# Direct use of /etc/passwd, /etc/group, /etc/shadow
+	$(SED) -i 's!^#* *CONFIG_USE_BB_PWD_GRP[ =].*$$!CONFIG_USE_BB_PWD_GRP=y!'     $(BUILDDIR)/busybox/.config

make/etc.mk

@@ -1,7 +1,19 @@
+$(SYSROOT)/etc/group: etc/group
+	$(INSTALL) -d $(SYSROOT)/etc
+	$(INSTALL) -m 644 etc/group $(SYSROOT)/etc/group
+
 $(SYSROOT)/etc/hosts: etc/hosts
 	$(INSTALL) -d $(SYSROOT)/etc
 	$(INSTALL) -m 644 etc/hosts $(SYSROOT)/etc/hosts
 
+$(SYSROOT)/etc/inittab: etc/inittab
+	$(INSTALL) -d $(SYSROOT)/etc
+	$(INSTALL) -m 644 etc/inittab $(SYSROOT)/etc/inittab
+
+$(SYSROOT)/etc/passwd: etc/passwd
+	$(INSTALL) -d $(SYSROOT)/etc
+	$(INSTALL) -m 644 etc/passwd $(SYSROOT)/etc/passwd
+
 $(SYSROOT)/etc/shells: etc/shells
 	$(INSTALL) -d $(SYSROOT)/etc
 	$(INSTALL) -m 644 etc/shells $(SYSROOT)/etc/shells