commit 69eead12fc2cb4249648db9afc34b064c9053dbf
parent 61ca4bc96c6ce409a1f0ae42e1acea78dc6f355c
Author: sin <sin@2f30.org>
Date: Wed, 14 Aug 2013 12:48:59 +0100
Add suckless-initramfs
Diffstat:
| A | suckless-initramfs | | | 71 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 71 insertions(+), 0 deletions(-)
diff --git a/suckless-initramfs b/suckless-initramfs
@@ -0,0 +1,71 @@
+#!/bin/sh -x
+
+# Fetch sbase + ubase + mksh
+mkdir build
+cd build
+git clone git://git.2f30.org/sbase
+git clone git://git.2f30.org/ubase
+wget -O mksh-R47.tgz -c https://www.mirbsd.org/MirOS/dist/mir/mksh/mksh-R47.tgz
+
+# Build statically linked sbase + ubase
+cd sbase
+make clean
+make LDFLAGS+=-static
+cd -
+cd ubase
+make clean
+make LDFLAGS+=-static
+cd -
+
+# Build statically linked mksh
+tar xzf mksh-R47.tgz
+cd mksh
+LDFLAGS+=-static CPPFLAGS+=-DMKSH_NOPWNAM sh Build.sh
+cd -
+
+# Create dir hierarchy
+rm -rf initramfs
+mkdir -p initramfs/{bin,etc,dev,proc,root,sys}
+cd initramfs
+ln -s /bin sbin
+cd -
+
+# Install sbase + ubase + mksh
+for i in $(find sbase/ -not -iwholename "*.git*" -perm 755); do
+ cp "$i" initramfs/bin
+done
+for i in $(find ubase/ -not -iwholename "*.git*" -perm 755); do
+ cp "$i" initramfs/bin
+done
+cp mksh/mksh initramfs/bin/ksh
+
+# Create symlink for /bin/sh -> ksh
+cd initramfs/bin
+ln -s /bin/ksh sh
+cd -
+
+# Our init script
+cat << EOF > initramfs/init
+#!/bin/sh
+
+export PATH=/sbin:/bin
+
+mount -t sysfs sysfs /sys
+mount -t proc proc /proc
+mknod /dev/null c 1 3
+mknod /dev/zero c 1 5
+mknod /dev/tty c 5 0
+mkdir /dev/pts
+mount -t devpts devpts /dev/pts
+
+while :; do
+ sh
+done
+EOF
+
+chmod +x initramfs/init
+
+cd initramfs
+find . | cpio --quiet -H newc -o | gzip -9 -n > ../initramfs.img
+rm -rf initramfs
+echo Done
