Implement kernel bootstrap up to building Linux.

sysa/run2.sh

@@ -73,11 +73,16 @@ build ed-1.4
 
 build bc-1.07.1
 
+if [ "${CHROOT}" = False ]; then
+    # Save because linux deletes all distfiles to save space
+    cp "${DISTFILES}"/musl-1.2.3.tar.gz "${SOURCES}"/musl-1.2.3
+fi
+
 mkdir -p /sysc/distfiles
 cp "${DISTFILES}"/curl-7.88.1.tar.bz2 /sysc/distfiles
 
 # Clear up some RAM space
-grep --no-filename '^build' "${SOURCES}"/run*.sh | sed "s/build //" | sed "s/ .*$//" | while read -r p ; do
+grep --no-filename '^build' "${SOURCES}"/run*.sh | grep -v musl-1.2.3 | sed "s/build //" | sed "s/ .*$//" | while read -r p ; do
     rm -rf "${SOURCES:?}/${p:?}"
 done
 
@@ -86,13 +91,22 @@ if [ "${CHROOT}" = False ]; then
 
     build linux-4.9.10
 
-    create_sysb
-    go_sysb
-fi
+    build musl-1.2.3 '' no-patches
 
-# In chroot mode transition directly into System C.
-SYSC=/sysc_image
-sys_transfer "${SYSC}" /sysc gzip patch
-if [ "${CHROOT_ONLY_SYSA}" != True ]; then
-    exec chroot "${SYSC}" /init
+    create_sysb
+    if [ "${KERNEL_BOOTSTRAP}" = True ]; then
+	echo "Kernel bootstrapping successful."
+	echo "NOTE: Transition to Linux and building remaining packages is under development."
+    else
+        go_sysb
+    fi
+else
+    build musl-1.2.3 '' no-patches
+
+    # In chroot mode transition directly into System C.
+    SYSC=/sysc_image
+    sys_transfer "${SYSC}" /sysc gzip patch
+    if [ "${CHROOT_ONLY_SYSA}" != True ]; then
+        exec chroot "${SYSC}" /init
+    fi
 fi