ralt · February 25, 2018 21:45 · Nov 15, 2012 · Nov 15, 2012 · Nov 15, 2012
diff --git a/000.mkd b/000.mkd
@@ -27,7 +27,7 @@ $ make install DESTDIR=$ROOTDIR/system/
 In order to create an initrd image use the following
 
 ```
-$ /usr/src/linux-git/usr/gen_init_cpio cpio.conf | gzip -9 -n > initrd.gz
+$ /usr/src/linux-git/usr/gen_init_cpio cpio_list | gzip -9 -n > initrd.gz
 ```
 
 where  ``linux-git`` is the directory of the linux kernel source.
diff --git a/000.mkd b/000.mkd
@@ -22,4 +22,12 @@ $ ./configure --enable-static-cryptsetup   --enable-static  \
   DEVMAPPER_LIBS="-L$ROOTDIR/system/usr/lib/ -ldevmapper"
 $ make
 $ make install DESTDIR=$ROOTDIR/system/
-```
+```
+
+In order to create an initrd image use the following
+
+```
+$ /usr/src/linux-git/usr/gen_init_cpio cpio.conf | gzip -9 -n > initrd.gz
+```
+
+where  ``linux-git`` is the directory of the linux kernel source.
diff --git a/cpio_list b/cpio_list
@@ -0,0 +1,23 @@
+# A simple initramfs needed in order to load a LUKS partition
+# at boot time
+dir /dev 0755 0 0
+nod /dev/console 0600 0 0 c 5 1
+dir /root 0700 0 0
+dir /sbin 0755 0 0
+dir /bin 0755 0 0
+dir /run 0755 0 0
+dir /mnt 0755 0 0
+dir /mnt/lulz 0755 0 0
+file /init init.sh 0755 0 0
+file /sbin/busybox /opt/busybox/busybox 0755 0 0
+file /sbin/setsid /opt/busybox/busybox 0755 0 0
+file /sbin/cryptsetup /tmp/porcodio/usr/sbin/cryptsetup.static 0755 0 0
+file /sbin/losetup /opt/busybox/busybox 0755 0 0
+slink /bin/sh /sbin/busybox 0755 0 0
+slink /bin/losetup /sbin/busybox 0755 0 0
+slink /bin/dd /sbin/busybox 0755 0 0
+slink /sbin/chroot /sbin/busybox 0755 0 0
+slink /sbin/mount /sbin/busybox 0755 0 0
+slink /bin/mkdir /sbin/busybox 0755 0 0
+slink /bin/ls /sbin/busybox 0755 0 0
+slink /sbin/mknod /sbin/busybox 0755 0 0
diff --git a/init.sh b/init.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+echo "Loading, please wait..."
+
+[ -d /dev ] || mkdir -m 0755 /dev
+[ -d /root ] || mkdir -m 0700 /root
+[ -d /sys ] || mkdir /sys
+[ -d /proc ] || mkdir /proc
+[ -d /tmp ] || mkdir /tmp
+mkdir -p /var/lock
+mount -t sysfs -o nodev,noexec,nosuid sysfs /sys
+mount -t proc -o nodev,noexec,nosuid proc /proc
+
+# Note that this only becomes /dev on the real filesystem if udev's scripts
+# are used; which they will be, but it's worth pointing out
+tmpfs_size="10M"
+if [ -e /etc/udev/udev.conf ]; then
+       . /etc/udev/udev.conf
+fi
+mkdir /dev/pts
+mount -t devpts -o noexec,nosuid,gid=5,mode=0620 devpts /dev/pts || true
+mount -t tmpfs -o "nosuid,size=20%,mode=0755" tmpfs /run
+
+
+if [ -e /dev/sda ]
+then
+    cryptsetup luksOpen /dev/sda lulz
+    mount /dev/mapper/lulz /mnt/lulz
+else
+    echo "No LUKS device found"
+fi
+
+exec setsid sh -c 'exec sh </dev/tty1 >/dev/tty1 2>&1'
+
+# Chain to real filesystem
+#exec chroot ${rootmnt} ${init} <${rootmnt}/dev/console >${rootmnt}/dev/console
diff --git a/000.mkd b/000.mkd
@@ -0,0 +1,25 @@
+I suppose you use Debian-like systems
+
+```
+$ mkdir rootdir && cd rootdir && export ROOTDIR=$PWD
+```
+
+```
+$ apt-get source libdevmapper1.02.1
+$ apt-get source cryptsetup
+```
+```
+$ cd lvm2-2.02.95
+$ ./configure --enable-static_link
+$ make
+$ make install DESTDIR=${ROOTDIR}/system/
+```
+
+```
+$ cd ../cryptsetup-1.4.3
+$ ./configure --enable-static-cryptsetup   --enable-static  \
+  DEVMAPPER_CFLAGS="-I$ROOTDIR/system/usr/include/" \
+  DEVMAPPER_LIBS="-L$ROOTDIR/system/usr/lib/ -ldevmapper"
+$ make
+$ make install DESTDIR=$ROOTDIR/system/
+```