Update README.md

README.md

@@ -14,6 +14,33 @@ Use on your own risk.
 5. Use dd to repack it, verify using dumpifs again (some padding bytes may need to be manually added). You can also use the helper script to do that
 6. Get into IPL, rz to retrive the modified ifs and get into the emergency shell. You might want to kill MIBEmergency (directly modify the binary by hex editor or slay command after boot) to stop the emergency boot after seconds which will lock you out again. or you can replace the original shadow file in system with yours.
 
+# Make
+
+```bash
+git clone https://github.com/askac/dumpifs.git
+chmod +x dumpifs
+./dumpifs
+```
+Available on the AUR: [https://aur.archlinux.org/packages/dumpifs-git/](https://aur.archlinux.org/packages/dumpifs-git/)
+
+# Options
+
+```
+%C - dump an image file system
+
+%C	[-mvxbz -u file] [-f file] image_file_system_file [files]
+ -b       Extract to basenames of files
+ -u file  Put a copy of the uncompressed image file here
+ -v       Verbose
+ -x       Extract files
+ -m       Display MD5 Checksum
+ -f file  Extract named file
+ -z       Disable the zero check while searching for the startup header.
+          This option should be avoided as it makes the search for the
+          startup header less reliable.
+          Note: this may not be supported in the future.
+```
+
 # Reference
 The original code is from
 https://github.com/vocho/openqnx