[Galaxy S I9000 Q&A, Help & Troubleshooting] Nitephyre:
Hi all,

I'm trying to make my own custom ROM, with moderate success although I've hit a stumbling block.

Is it possible to create and write to the /data folder during an update.zip flash?

I've tried the example below but it doesn't seem to work :confused:

ui_print("");
ui_print("Installing Pegasus...");
show_progress(0.500000, 0);

delete_recursive("/data");
delete_recursive("/system/app");
delete_recursive("/system/fonts");
delete_recursive("/system/framework");
delete_recursive("/system/media");
delete_recursive("/system/csc");

delete("/system/build.prop");
delete("/system/default.prop");
delete("/system/CSCVersion.txt");
delete("/system/CSCFiles.txt");
delete("/system/SW_Configuration.xml");
delete("/system/bin/recovery");
delete("/system/etc/gps.conf");
delete("/system/etc/hosts.xml");
delete("/system/etc/jupiter.xml");
delete("/system/etc/voicemail-conf.xml");

mount("MTD", "data", "/data");
mount("MTD", "system", "/system");
show_progress(0.500000, 40);

ui_print(" - unpacking system...");
package_extract_dir("data", "/data");
package_extract_dir("system", "/system");

symlink("busybox", "/system/xbin/[", "/system/xbin/[[",
"/system/xbin/arp", "/system/xbin/ash", "/system/xbin/awk",
"/system/xbin/basename", "/system/xbin/bbconfig", "/system/xbin/brctl",
"/system/xbin/bunzip2", "/system/xbin/bzcat", "/system/xbin/bzip2",
"/system/xbin/cal", "/system/xbin/cat", "/system/xbin/catv",
"/system/xbin/chgrp", "/system/xbin/chmod", "/system/xbin/chown",
"/system/xbin/chroot", "/system/xbin/cksum", "/system/xbin/clear",
"/system/xbin/cmp", "/system/xbin/cp", "/system/xbin/cpio",
"/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/expr",
"/system/xbin/false", "/system/xbin/fdisk", "/system/xbin/fgrep",
"/system/xbin/find", "/system/xbin/fold", "/system/xbin/free",
"/system/xbin/freeramdisk", "/system/xbin/fuser", "/system/xbin/getopt",
"/system/xbin/grep", "/system/xbin/gunzip", "/system/xbin/gzip",
"/system/xbin/head", "/system/xbin/hexdump", "/system/xbin/id",
"/system/xbin/ifconfig", "/system/xbin/insmod", "/system/xbin/install",
"/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/lsmod", "/system/xbin/lspci", "/system/xbin/lsusb",
"/system/xbin/lzop", "/system/xbin/lzopcat", "/system/xbin/md5sum",
"/system/xbin/mkdir", "/system/xbin/mke2fs", "/system/xbin/mkfifo",
"/system/xbin/mkfs.ext2", "/system/xbin/mknod", "/system/xbin/mkswap",
"/system/xbin/mktemp", "/system/xbin/modprobe", "/system/xbin/more",
"/system/xbin/mount", "/system/xbin/mountpoint", "/system/xbin/mv",
"/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/printenv",
"/system/xbin/printf", "/system/xbin/ps", "/system/xbin/pwd",
"/system/xbin/rdev", "/system/xbin/readlink", "/system/xbin/realpath",
"/system/xbin/renice", "/system/xbin/reset", "/system/xbin/rm",
"/system/xbin/rmdir", "/system/xbin/rmmod", "/system/xbin/route",
"/system/xbin/run-parts", "/system/xbin/sed", "/system/xbin/seq",
"/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/swapoff", "/system/xbin/swapon", "/system/xbin/sync",
"/system/xbin/sysctl", "/system/xbin/tac", "/system/xbin/tail",
"/system/xbin/tar", "/system/xbin/tee", "/system/xbin/telnet",
"/system/xbin/test", "/system/xbin/tftp", "/system/xbin/time",
"/system/xbin/top", "/system/xbin/touch", "/system/xbin/tr",
"/system/xbin/traceroute", "/system/xbin/true", "/system/xbin/tty",
"/system/xbin/tune2fs", "/system/xbin/umount", "/system/xbin/uname",
"/system/xbin/uniq", "/system/xbin/unix2dos", "/system/xbin/unlzop",
"/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/yes",
"/system/xbin/zcat");

set_perm(0, 0, 0755, "/system/bin/recovery");
set_perm(0, 0, 06755, "/system/xbin/su");
set_perm(0, 0, 0755, "/system/xbin/busybox");

ui_print(" - installing Recovery...");
set_perm(0, 0, 0755, "/system/bin/recovery");

show_progress(0.200000, 0);
show_progress(0.200000, 10);
show_progress(0.100000, 0);
unmount("/data");
unmount("/system");

ui_print("Install complete, reboot...");