[Sony Xperia S, Acro S, Ion] steryman:
Ok so I've aborted the .45 for now, I've compiled the JellyBean Leak for loop and testing now :)

Edit: it fails when copying some files.. I guess it runs out of memory... can you help?

Log attached.

Edit 2: here is the script:

assert(getprop("ro.product.device") == "LT26i" || getprop("ro.build.product") == "LT26i" ||
getprop("ro.product.device") == "nozomi" || getprop("ro.build.product") == "nozomi");
show_progress(0.1, 0);
format("ext4", "EMMC", "/dev/block/loop2", "0", "/system");
mount("ext4", "EMMC", "/dev/block/loop2", "/system");
package_extract_dir("system", "/system");
symlink("Roboto-Bold.ttf", "/system/fonts/DroidSans-Bold.ttf");
symlink("Roboto-Regular.ttf", "/system/fonts/DroidSans.ttf");
symlink("toolbox", "/system/bin/start");
symlink("toolbox", "/system/bin/lsmod");
symlink("toolbox", "/system/bin/r");
symlink("toolbox", "/system/bin/vmstat");
symlink("toolbox", "/system/bin/ifconfig");
symlink("toolbox", "/system/bin/ionice");
symlink("toolbox", "/system/bin/schedtop");
symlink("toolbox", "/system/bin/wipe");
symlink("toolbox", "/system/bin/reboot");
symlink("toolbox", "/system/bin/rmdir");
symlink("toolbox", "/system/bin/route");
symlink("toolbox", "/system/bin/chown");
symlink("toolbox", "/system/bin/lsof");
symlink("toolbox", "/system/bin/getevent");
symlink("toolbox", "/system/bin/mkdir");
symlink("toolbox", "/system/bin/netstat");
symlink("toolbox", "/system/bin/renice");
symlink("toolbox", "/system/bin/uptime");
symlink("toolbox", "/system/bin/md5");
symlink("toolbox", "/system/bin/lsusb");
symlink("mksh", "/system/bin/sh");
symlink("toolbox", "/system/bin/smd");
symlink("toolbox", "/system/bin/sync");
symlink("toolbox", "/system/bin/mount");
symlink("toolbox", "/system/bin/printenv");
symlink("toolbox", "/system/bin/top");
symlink("toolbox", "/system/bin/log");
symlink("toolbox", "/system/bin/sendevent");
symlink("toolbox", "/system/bin/ps");
symlink("toolbox", "/system/bin/dmesg");
symlink("toolbox", "/system/bin/umount");
symlink("toolbox", "/system/bin/kill");
symlink("toolbox", "/system/bin/stop");
symlink("toolbox", "/system/bin/newfs_msdos");
symlink("toolbox", "/system/bin/iftop");
symlink("toolbox", "/system/bin/chmod");
symlink("toolbox", "/system/bin/rmmod");
symlink("toolbox", "/system/bin/setconsole");
symlink("toolbox", "/system/bin/mv");
symlink("toolbox", "/system/bin/rm");
symlink("toolbox", "/system/bin/id");
symlink("toolbox", "/system/bin/watchprops");
symlink("toolbox", "/system/bin/hd");
symlink("toolbox", "/system/bin/ctrlaltdel");
symlink("toolbox", "/system/bin/sleep");
symlink("toolbox", "/system/bin/ls");
symlink("toolbox", "/system/bin/cmp");
symlink("toolbox", "/system/bin/insmod");
symlink("toolbox", "/system/bin/nandread");
symlink("toolbox", "/system/bin/date");
symlink("toolbox", "/system/bin/dd");
symlink("toolbox", "/system/bin/getprop");
symlink("toolbox", "/system/bin/cat");
symlink("toolbox", "/system/bin/df");
symlink("toolbox", "/system/bin/touch");
symlink("toolbox", "/system/bin/ioctl");
symlink("toolbox", "/system/bin/setprop");
symlink("toolbox", "/system/bin/notify");
symlink("toolbox", "/system/bin/ln");
set_perm_recursive(0, 0, 0755, 0644, "/system");
set_perm_recursive(0, 2000, 0755, 0755, "/system/bin");
set_perm(0, 3003, 06755, "/system/bin/ip");
set_perm(0, 3003, 02750, "/system/bin/netcfg");
set_perm(0, 3004, 02755, "/system/bin/ping");
set_perm(0, 2000, 06750, "/system/bin/run-as");
set_perm_recursive(1002, 1002, 0755, 0440, "/system/etc/bluetooth");
set_perm(0, 0, 0755, "/system/etc/bluetooth");
set_perm(1000, 1000, 0640, "/system/etc/bluetooth/auto_pairing.conf");
set_perm(3002, 3002, 0444, "/system/etc/bluetooth/blacklist.conf");
set_perm(1002, 1002, 0440, "/system/etc/dbus.conf");
set_perm(1014, 2000, 0550, "/system/etc/dhcpcd/dhcpcd-run-hooks");
set_perm(0, 2000, 0550, "/system/etc/init.goldfish.sh");
set_perm(0, 0, 06755, "/system/bin/su");
symlink("/system/bin/su", "/system/xbin/su");
set_perm_recursive(0, 0, 0755, 0555, "/system/etc/ppp");
set_perm_recursive(0, 2000, 0755, 0644, "/system/vendor");
set_perm_recursive(0, 2000, 0755, 0644, "/system/vendor/etc");
set_perm_recursive(0, 0, 0755, 0644, "/system/vendor/firmware");
set_perm(0, 2000, 0755, "/system/vendor/firmware");
set_perm(0, 2000, 0755, "/system/vendor/lib");
set_perm_recursive(0, 2000, 0755, 0755, "/system/xbin");
set_perm(0, 1000, 0755, "/system/xbin/busybox");
symlink("/system/xbin/busybox", "/system/bin/busybox");
package_extract_file("installbusybox", "/tmp/installbusybox");
set_perm(0, 0, 0777, "/tmp/installbusybox");
run_program("/tmp/installbusybox");
show_progress(0.1, 10);
show_progress(0.2, 0);
show_progress(0.2, 10);
unmount("/system");
package_extract_file("zimage", "/tmp/zimage");
package_extract_file("initramfs.loop.gz", "/tmp/initramfs.cpio.gz");
run_program("/sbin/kf", "2", "/tmp/zimage", "/tmp/initramfs.cpio.gz");
run_program("/sbin/sync");
format("ext4", "EMMC", "/dev/block/loop4", "0", "/data");
format("ext4", "EMMC", "/dev/block/loop3", "0", "/cache");