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Twilight Hack alpha3 now supports FAT on the internal SD slot!
writeelf is no longer required (but still can be used if you do not want to use FAT!)


Download | Source | Older versions
A frontend made by TioSolid can be downloaded here.

readme | changelog

writeelf v1.6
by cybermind - cybermind@gmail.com
for Windows
http://cybermind.user.stfunoob.com/wii/writeelf/

Writes a specified ELF file to an SD card for use with the Twilight Hack ( http://wiibrew.org/index.php?title=Twilight_Hack ).

	Usage:
	writeelf [-b[=file]] [-f=file] [-h] [-s] [-v] [-V] drive
	-b          = backup existing data from the SD card
	-b=file     = backup to a specific filename
	-f=file     = file to write to the SD card
	-h          = display this help
	-s=sector   = specify sector to write to (minimum 2048)
	-z          = zero out the ELF area before writing
	-v          = verbose mode (more output)
	-V          = display writeelf version	
	drive       = drive letter of SD card reader device
	
	If -b is specified with no filename, backups will be written
	to incrementally-numbered files named sdbackup##.bak.
	
	The -s option is not recommended unless you know what you are
	doing.


Examples:

To write demo.elf to drive J: and exit:
	writeelf -f=demo.elf J

To backup data from drive H: and exit:
	writeelf -b H

To backup data from drive G: into mybackup.bak and then write demo.elf:
	writeelf -f=demo.elf -b=mybackup.bak G
	
To zero out any previous data and then write demo.elf to drive Q:
	writeelf -f=demo.elf -z Q

To simply test to see if drive I: is accessible:
	writeelf -v I
	


This should not be able to write to a fixed drive, but don't try it anyway!

This will (by design) corrupt any file occupying the 16384 sectors starting
with sector 2048, so just don't leave anything important on the card. You can
also restore the old data by providing a backup filename for the -f parameter.

YOU MUST RUN THIS AS AN ADMINISTRATOR. If you are not logged in as an
administrator, you can use the "runas" command:

	runas /env /user:Administrator "writeelf -f=demo.elf J"
	
where "Administrator" is the administrator account name on your computer. It
will prompt you for a password.



Special thanks to:
 - predakang for MASSIVE information, help and testing on Vista,
 - ruffy91 for bringing up the SP0 drive issue,
 - mattgentl for testing in fixing the SP0 drive issue,
 - #wiidev on EFNet,
 - and last but certainly not least, Team Twiizers for the
   Twilight Hack ( http://www.wiibrew.org/ )


writeelf changelog

v1.6 (Feb 27, 2008):
- NOW WORKS IN VISTA! (HUGE thanks to predakang of #wiidev@efnet)
- allow -z option to be used without writing a file
- added url to output header

v1.5 (Feb 24, 2008):
- fixed issue with "SP0"-named drives (PCI/IDE-based)

v1.4 (Feb 24, 2008):
- added -z option to zero out the writable area

v1.3 (Feb 23, 2008):
- alternate mode works completely incorrectly, temporarily removed
- added -s option to change sector to write to

v1.2 (Feb 22, 2008):
- added "real" command line parsing system
- added verbose mode (to hide unnecessary messages)
- added alternate mode for possible support for non-block device card readers (experimental)
- standardized output substantially

v1.1 (Feb 21, 2008):
- fixed typo of backup filename in usage text
- added note about Administrator requirement to readme
- added note about Administrator requirement upon failure to open device

v1.0 (Feb 21, 2008):
- initial release