[Galaxy S III I9305 (4G LTE + 2GB RAM) Android Deve] Jarmezrocks:
Yep so would I. But it not only deleted the EFS, it corrupted the partition so I couldn't write to it again. I managed to fix my phone oddly by just flashing back to stock ICS with repartition (I made sure I backed up my SDcard) and then flashed root, then flashed recovery, then flashed Philz Touch, Then restored my Nandroid backup. I screwed around for hours last night trying to write back to the mmcblk0p3 without any luck (flashing direct EFS.img via Heimdall, adb shell and dd command from EFS.img on Sdcard, Flashing CWM zip with my own script to flash EFS.img to mmcblk0p3 etc etc). I even flashed LiquidPerfections' Param tar repair via Odin and still no luck.

The odd thing is that mmcblk0p12 on our phone corresponds to CACHE? But I posted the warning because this caused a whole lot of hassle for me that I really didn't need and I didn't want others in the same boat. It was my own fault I guess cause the older version of the script just plain was not removing settings (I posted about it in this thread on the previous page) after I borked my GPU settings myself. My phone was un-usable so was looking for a way to try remove the settings. I tried the script on my SDcard and it didn't work. I saw that others in his thread around version 4 were having the same issues, and I had not created a restore script (well so I believed?) since I first flashed Boeffla, so naturally I assumed the script was the old one....so I removed it, flashed the latest kernel you posted and regenerated the restore zip on my SDcard, After I flashed it BAM no signal! Well actually I had full signal but could only make emergency calls. Sure enough wiped my EFS.

Now if we look at when people install a ROM from I9300, nothing in those ROMs mounts mmcblk0p3 specifically but we all know sure as hell if you flash a I9305 with a I9300 ROM you will wipe your EFS....am I right?

Here take a look for your self. Here is a standard straight forward install for I9300 ROM. Nowhere do I see it mention mounting of mmcblk0p3 but I am certainly not game to flash it because it has mmcblk0p9 as system when we have mmcblk0p13.

My point is that just because it doesn't specifically call mmcblk0p3 does not necessarily mean that calling the wrong partition explicitly won't wipe our EFS. This has been a big assumption that has bitten many people.

mount("ext4", "EMMC", "/dev/block/mmcblk0p9", "/system");
package_extract_file("system/bin/backuptool.sh", "/tmp/backuptool.sh");
package_extract_file("system/bin/backuptool.functions", "/tmp/backuptool.functions");
set_perm(0, 0, 0777, "/tmp/backuptool.sh");
set_perm(0, 0, 0644, "/tmp/backuptool.functions");
run_program("/tmp/backuptool.sh", "backup");
unmount("/system");
show_progress(0.500000, 0);
format("ext4", "EMMC", "/dev/block/mmcblk0p9", "0", "/system");
mount("ext4", "EMMC", "/dev/block/mmcblk0p9", "/system");
package_extract_dir("system", "/system");
symlink("../lib", "/system/usr/lib");
symlink("Roboto-Bold.ttf", "/system/fonts/DroidSans-Bold.ttf");
symlink("Roboto-Regular.ttf", "/system/fonts/DroidSans.ttf");
symlink("busybox", "/system/xbin/[", "/system/xbin/[[",
"/system/xbin/adjtimex", "/system/xbin/arp", "/system/xbin/ash",
"/system/xbin/awk", "/system/xbin/base64", "/system/xbin/basename",
"/system/xbin/bbconfig", "/system/xbin/blkid", "/system/xbin/blockdev",
"/system/xbin/brctl", "/system/xbin/bunzip2", "/system/xbin/bzcat",
"/system/xbin/bzip2", "/system/xbin/cal", "/system/xbin/cat",
"/system/xbin/catv", "/system/xbin/chattr", "/system/xbin/chgrp",
"/system/xbin/chmod", "/system/xbin/chown", "/system/xbin/chroot",
"/system/xbin/clear", "/system/xbin/cmp", "/system/xbin/comm",
"/system/xbin/cp", "/system/xbin/cpio", "/system/xbin/crond",
"/system/xbin/crontab", "/system/xbin/cut", "/system/xbin/date",
"/system/xbin/dc", "/system/xbin/dd", "/system/xbin/depmod",
"/system/xbin/devmem", "/system/xbin/df", "/system/xbin/diff",
"/system/xbin/dirname", "/system/xbin/dmesg", "/system/xbin/dnsd",
"/system/xbin/dos2unix", "/system/xbin/du", "/system/xbin/echo",
"/system/xbin/ed", "/system/xbin/egrep", "/system/xbin/env",
"/system/xbin/expand", "/system/xbin/expr", "/system/xbin/false",
"/system/xbin/fdisk", "/system/xbin/fgrep", "/system/xbin/find",
"/system/xbin/flash_lock", "/system/xbin/flash_unlock",
"/system/xbin/flashcp", "/system/xbin/flock", "/system/xbin/fold",
"/system/xbin/free", "/system/xbin/freeramdisk", "/system/xbin/fsync",
"/system/xbin/ftpget", "/system/xbin/ftpput", "/system/xbin/fuser",
"/system/xbin/getopt", "/system/xbin/grep", "/system/xbin/groups",
"/system/xbin/gunzip", "/system/xbin/gzip", "/system/xbin/halt",
"/system/xbin/head", "/system/xbin/hexdump", "/system/xbin/id",
"/system/xbin/ifconfig", "/system/xbin/inetd", "/system/xbin/insmod",
"/system/xbin/install", "/system/xbin/iostat", "/system/xbin/ip",
"/system/xbin/kill", "/system/xbin/killall", "/system/xbin/killall5",
"/system/xbin/length", "/system/xbin/less", "/system/xbin/ln",
"/system/xbin/losetup", "/system/xbin/ls", "/system/xbin/lsattr",
"/system/xbin/lsmod", "/system/xbin/lsusb", "/system/xbin/lzcat",
"/system/xbin/lzma", "/system/xbin/lzop", "/system/xbin/lzopcat",
"/system/xbin/man", "/system/xbin/md5sum", "/system/xbin/mesg",
"/system/xbin/mkdir", "/system/xbin/mke2fs", "/system/xbin/mkfifo",
"/system/xbin/mkfs.ext2", "/system/xbin/mkfs.vfat",
"/system/xbin/mknod", "/system/xbin/mkswap", "/system/xbin/mktemp",
"/system/xbin/modinfo", "/system/xbin/modprobe", "/system/xbin/more",
"/system/xbin/mount", "/system/xbin/mountpoint", "/system/xbin/mpstat",
"/system/xbin/mv", "/system/xbin/nanddump", "/system/xbin/nandwrite",
"/system/xbin/netstat", "/system/xbin/nice", "/system/xbin/nohup",
"/system/xbin/nslookup", "/system/xbin/ntpd", "/system/xbin/od",
"/system/xbin/patch", "/system/xbin/pgrep", "/system/xbin/pidof",
"/system/xbin/ping", "/system/xbin/pkill", "/system/xbin/pmap",
"/system/xbin/poweroff", "/system/xbin/printenv", "/system/xbin/printf",
"/system/xbin/ps", "/system/xbin/pstree", "/system/xbin/pwd",
"/system/xbin/pwdx", "/system/xbin/rdev", "/system/xbin/readlink",
"/system/xbin/realpath", "/system/xbin/renice", "/system/xbin/reset",
"/system/xbin/resize", "/system/xbin/rev", "/system/xbin/rm",
"/system/xbin/rmdir", "/system/xbin/rmmod", "/system/xbin/route",
"/system/xbin/run-parts", "/system/xbin/rx", "/system/xbin/sed",
"/system/xbin/seq", "/system/xbin/setconsole", "/system/xbin/setserial",
"/system/xbin/setsid", "/system/xbin/sh", "/system/xbin/sha1sum",
"/system/xbin/sha256sum", "/system/xbin/sha512sum",
"/system/xbin/sleep", "/system/xbin/sort", "/system/xbin/split",
"/system/xbin/stat", "/system/xbin/strings", "/system/xbin/stty",
"/system/xbin/sum", "/system/xbin/swapoff", "/system/xbin/swapon",
"/system/xbin/sync", "/system/xbin/sysctl", "/system/xbin/tac",
"/system/xbin/tail", "/system/xbin/tar", "/system/xbin/taskset",
"/system/xbin/tee", "/system/xbin/telnet", "/system/xbin/telnetd",
"/system/xbin/test", "/system/xbin/tftp", "/system/xbin/tftpd",
"/system/xbin/time", "/system/xbin/timeout", "/system/xbin/top",
"/system/xbin/touch", "/system/xbin/tr", "/system/xbin/traceroute",
"/system/xbin/true", "/system/xbin/ttysize", "/system/xbin/tune2fs",
"/system/xbin/umount", "/system/xbin/uname", "/system/xbin/uncompress",
"/system/xbin/unexpand", "/system/xbin/uniq", "/system/xbin/unix2dos",
"/system/xbin/unlzma", "/system/xbin/unlzop", "/system/xbin/unxz",
"/system/xbin/unzip", "/system/xbin/uptime", "/system/xbin/usleep",
"/system/xbin/uudecode", "/system/xbin/uuencode", "/system/xbin/vi",
"/system/xbin/watch", "/system/xbin/wc", "/system/xbin/wget",
"/system/xbin/which", "/system/xbin/whoami", "/system/xbin/xargs",
"/system/xbin/xz", "/system/xbin/xzcat", "/system/xbin/yes",
"/system/xbin/zcat");
symlink("mksh", "/system/bin/sh");
symlink("toolbox", "/system/bin/cat", "/system/bin/chmod",
"/system/bin/chown", "/system/bin/cmp", "/system/bin/cp",
"/system/bin/date", "/system/bin/dd", "/system/bin/df",
"/system/bin/dmesg", "/system/bin/du", "/system/bin/getevent",
"/system/bin/getprop", "/system/bin/grep", "/system/bin/hd",
"/system/bin/id", "/system/bin/ifconfig", "/system/bin/iftop",
"/system/bin/insmod", "/system/bin/ioctl", "/system/bin/ionice",
"/system/bin/kill", "/system/bin/ln", "/system/bin/log",
"/system/bin/ls", "/system/bin/lsmod", "/system/bin/lsof",
"/system/bin/md5", "/system/bin/mkdir", "/system/bin/mount",
"/system/bin/mv", "/system/bin/nandread", "/system/bin/netstat",
"/system/bin/newfs_msdos", "/system/bin/notify", "/system/bin/printenv",
"/system/bin/ps", "/system/bin/r", "/system/bin/reboot",
"/system/bin/renice", "/system/bin/restart", "/system/bin/rm",
"/system/bin/rmdir", "/system/bin/rmmod", "/system/bin/route",
"/system/bin/schedtop", "/system/bin/sendevent",
"/system/bin/setconsole", "/system/bin/setprop", "/system/bin/sleep",
"/system/bin/smd", "/system/bin/start", "/system/bin/stop",
"/system/bin/sync", "/system/bin/top", "/system/bin/touch",
"/system/bin/umount", "/system/bin/uptime", "/system/bin/vmstat",
"/system/bin/watchprops",
"/system/bin/wipe");
set_perm_recursive(0, 0, 0755, 0644, "/system");
set_perm_recursive(0, 0, 0755, 0755, "/system/addon.d");
set_perm_recursive(0, 2000, 0755, 0755, "/system/bin");
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(1002, 1002, 0440, "/system/etc/dbus.conf");
set_perm(1014, 2000, 0550, "/system/etc/dhcpcd/dhcpcd-run-hooks");
set_perm_recursive(0, 2000, 0755, 0755, "/system/etc/init.d");
set_perm(0, 0, 0755, "/system/etc/init.d");
set_perm(0, 2000, 0550, "/system/etc/init.goldfish.sh");
set_perm_recursive(0, 0, 0755, 0555, "/system/etc/ppp");
set_perm(0, 2000, 0755, "/system/vendor");
set_perm_recursive(0, 2000, 0755, 0644, "/system/vendor/etc");
set_perm(0, 0, 0644, "/system/vendor/etc/audio_effects.conf");
set_perm(0, 2000, 0755, "/system/vendor/firmware");
set_perm(0, 2000, 0755, "/system/vendor/lib");
set_perm_recursive(0, 2000, 0755, 0644, "/system/vendor/lib/drm");
set_perm(0, 0, 0644, "/system/vendor/lib/drm/libdrmwvmplugin.so");
set_perm_recursive(0, 2000, 0755, 0755, "/system/xbin");
set_perm(0, 0, 06755, "/system/xbin/librank");
set_perm(0, 0, 06755, "/system/xbin/procmem");
set_perm(0, 0, 06755, "/system/xbin/procrank");
set_perm(0, 0, 06755, "/system/xbin/su");
show_progress(0.200000, 0);
show_progress(0.200000, 10);
package_extract_file("system/bin/backuptool.sh", "/tmp/backuptool.sh");
package_extract_file("system/bin/backuptool.functions", "/tmp/backuptool.functions");
set_perm(0, 0, 0777, "/tmp/backuptool.sh");
set_perm(0, 0, 0644, "/tmp/backuptool.functions");
run_program("/tmp/backuptool.sh", "restore");
delete("/system/bin/backuptool.sh");
delete("/system/bin/backuptool.functions");
show_progress(0.200000, 10);
package_extract_file("boot.img", "/dev/block/mmcblk0p5");
show_progress(0.100000, 0);
unmount("/system");

---------- Post added at 04:27 PM ---------- Previous post was at 04:13 PM ----------

Anyway dude, no harm done really. I guess you are talking to a seasoned Android modder here. I would never go blaming the dev who created something awesome for us to use for a mistake done to my phone. Really, you are a provider. I am responsible for my own phone, and I can only blame me. But rather than blame I always look to solve. Blame gets people nowhere, solving does! ;) If someone is willing to flash the script I uploaded to confirm that it works maybe we can use it as an alternative.

I included the busybox binary inside the CWM zip because I can't assume that everyone (being that your kernel supports both Samsung AND AOSP ROMS) has their binary inside of xbin or what ever, so putting busybox in the zip, extract it, use it and then delete it seems like the most sensible option. Using busybox avoids calling explicit mounting points also and should meet the requirements for flashing via TWRP...? Anyone with TWRP willing to try? It will only status 6 abort if otherwise. I would safely say that this is a much safer alternative for all users of all devices.